232,962 research outputs found
Dendritic cells pulsed with apoptotic cells activate self-reactive T cells of lupus mice both in vitro and in vivo
No full textTanais nuwalianensis Tzeng & Hsueh, 2014, sp. nov.
No full textTanais nuwalianensis sp. nov. (Figs 4–6, Table 2) Material examined. Holotype, non-ovigerous female (NMNS 7214 - 5), 4.3 mm, Jihuei (23 °06’ 54.9 ”N, 121 ° 24 ’ 16.3 ”E), eastern Taiwan, intertidal, washing from red coralline alga Jania sp., collected by You-Wei Tzeng, April 18, 2012; allotype, male (NMNAS 7214 - 6), 3.2 mm, same as type locality, from Eunice sp. polychaetous worm tube washing, collected by You-Wei Tzeng, March 25, 2011; paratype: one non-ovigerous female (NMNS 7214 - 7), 4.2 mm, same as type locality, from red coralline alga Mastophora sp. washing, collected by You- Wei Tzeng, April 18, 2012. Diagnosis. Female: Antennule five-articled (three main articles and two short distal segments) with six distal aesthetascs; antenna eight-articled (five main articles and three short distal segments). Left mandible lacinia mobilis tooth-like, superior margin with three low serrations; right mandible lacinia mobilis small, peg-like. Pereopod 6 propodus with seven leaf-like setae, four bipinnate setae and two elongate pinnate setae on distal margin. Pleopod basis bears one to three setae on inner margin; uropod ‘four-articled’ (three segments and peduncle). Description. Holotype (Fig 4 A): Body seven times as long as wide. Cephalothorax subtriangular, posterolateral margin rounded, about 1 / 5 of body length, pereonite 1 shortest, pereonite 4 and 5 longest. Pleon about 1 / 4 of body length; pleonites 1 and 2 subequal in length, a dorsal transverse row of plumose setae present near posterior margin; pleonite 4 distinctly smaller than other three; pleonite 5 fused; pleotelson apex protruding. Antennule (Fig 4 C) five-articled, slightly shorter than cephalothorax; article 1 about 1 / 2 of total length of antennules, with two short lateral bipinnate setae, three distal bipinnate seta, and three distal simple setae; article 2 slightly longer than article 3, with ten distal setae; article 3 with two distal setae; articles 4 and 5 very short, scattered with nine simple setae and five aesthetascs. Antenna (Fig 4 D) eight-articled; article 2 with two distal setae, much larger than article 3; article 3 short, with one short distal bipinnate seta; articles 4 and 5 more slender than article 3, combined 1 / 2 total length of antenna, with three and five distal setae, respectively; article 6 to 8 small, with four and seven distal setae respectively. Labrum (Fig 4 E) hood-shaped covered by fine setules. Epignath (Fig 5 B) typical, margins covered with fine setules. Labium (Fig 4 F) bi-lobed, outer lobes as long as inner, superior margin of both covered by fine setules, outer lobe with ovate process (non-articulated palp). Left mandible (Fig 4 G) distolateral margin with a distinct concavity, lacinia mobilis (Fig 4 H) tooth-like with three serrations on superior margin and one adjacent plumose setae. Right mandible (Fig 4 I) likewise, lacinia mobilis (Fig 4 J) peg-like and minute, accompanied by one minute plumose seta. Maxillule (Fig 5 A) endite with seven distal spines and fine setules, superior margin with small denticles; palp with seven long setae. Maxilliped (Fig 5 C–D) coxa with one inferior seta; basis with two lateral setae, and three long and one short distal setae; endites (Fig 5 D) distal margin covered by fine setulae, with two simple distal setae and two distomedial hooks; palp (Fig 5 C) article 1 with one lateral seta; article 2 with six medial setae, one distolateral seta; article 3 with eight medial setae; article 4 with one dorsal seta and twelve distal bipinnate setae. Cheliped (Fig 5 E) attached to cephalothorax via sclerite, with triangular insertion to basis, with one superior seta; basis 1.4 times ltb, with one inferodistal seta; merus triangular, with three inferior setae; carpus 1.35 times ltb, five superior and four inferior setae; propodus including fixed finger 1.4 times as long as carpus, fixed finger about 1 / 2 propodus length, five inferior setae, inner margin with large blunt process and 11 setae, two inner margin setae near articulation with dactylus; dactylus slightly longer than fixed finger; both fixed finger distal and dactylus unguis heavily calcified. Pereopod 1 (Fig 5 F) longest; coxa with two setae, anterior not bulged; basis 3.4 ltb, with four superior setae; merus about 1 / 3 length of basis, with one superodistal seta, one lateral seta, and two inferodistal setae; carpus 40 % length of basis, with three superior setae and one inferodistal seta; propodus 3.4 ltb, with two superodistal setae and five inferodistal setae; dactylus slightly curved, with one superior seta, unguis half length of dactylus. Pereopod 2 (Fig 5 G) coxa with two setae; basis 2.8 ltb, with five superior setae and two inferodistal setae; merus about 40 % length of basis, with one superodistal seta, two inferior setae, one long inferodistal seta, and two inferodistal spines; carpus with one long superodistal seta; distal margin with six and five spines on outer and inner side respectively; propodus with one superior bipinnate seta, two superodistal setae, one inferior seta, one inferodistal seta, and one row of tiny spinules on inferior margins; dactylus unguis more curved than pereopod 1 dactylus. Pereopod 3 (Fig 6 A) similar to pereopod 2 but basis with one inferoproximal seta, superior margin with only three seta, merus inferior margin with four tiny spinules, carpus distal margin with seven outer spines and six inner spines, and propodus with two simple superior setae and three inferior setae. Pereopod 4 (Fig 6 B–C) basis with one row of inferoproximal setulae and one inferodistal seta; merus ventral margin with one row of tiny spinules and two setae, one long inferodistal seta and two inferodistal spines; carpus superior margin with one seta, distal margin with six spines on each side and several row of setulae nearby (see Fig 6 G); propodus superodistal margin with two strong long pinnate seta and one bipinnate seta, inferior margin with two setae and two distal setae, dactylus and unguis fused to a claw with one row of setules on either side. Pereopod 5 (Fig 6 D–E) similar to pereopod 4 but basis inferior margin with one bipinnate seta and two simple setae, merus inferior margin with two setae, distal with three spines. Pereopod 6 (Fig 6 F–H) similar to pereopod 5 but basis superior margin with two setae and inferior margin with one seta, merus with one inferior setae and four inferodistal spines, carpus distal margin with six and five spines on outer and inner side respectively, propodus distal margin with one row of six and one smaller leaflike setae, four bipinnate setae and two elongate pinnate seta. Pleopod 1 (not figured) basis inner margin with three setae, outer margin with 11 setae; endopod inner margin with 17 setae, outer margin with 19 setae and one distal seta; exopod inner margin no seta, outer margin with 42 setae. Pleopod 2 (not figured) similar to pleopod 1, but basis inner margin with two setae and endopod inner margin with 15 setae instead. Pleopod 3 (Fig 6 I) basis inner margin with one setae, outer margin seven setae; endopod inner margin with 12 setae, outer margin with 21 setae and one distal seta; exopod inner margin no seta, outer margin with 39 setae, all plumose setae. Uropod (Fig 6 J) peduncle 2.1 ltb, with four distal setae; endopod threesegmented; segment 2 with four distal simple setae and one bipinnate seta; segment 3 with eight distal simple setae and two bipinnate setae. Male paratype (Fig 4 B): Similar to female except body more robust, about 3.5 times ltb; cephalothorax about 1 / 4 of body length; antennule with nine distal aesthetascs; cheliped merus inferior margin with seven setae; pereopod 2 carpus with seven outer spines and six inner spines, pereopod 3 carpus with seven on each side, pereopod 4 carpus with eight outer spines and seven inner spines, pereopod 5 carpus with seven outer spines and six inner spines, pereopod 6 carpus with seven outer spines and six inner spines, propodus distal margin with one row of ten leaf-like setae, four plumose setae and one elongate simple seta. Etymology. The name is derived from “Nuwalian”, the local Amis aboriginal language for the location of the sampling site, meaning “the most eastern point”. Type locality. Jihuei, eastern Taiwan. Distribution. It is only known from type locality. Remarks. In appearance, the colour patterns of female T. nuwalianensis are not much different from that of congeners (e.g., Shiino 1951; Bamber & Bird 1997; present study). The present species most closely resembles to Tanis tinhauae Bamber & Bird, 1997, a species described from Hong Kong. Both species have a five-articled antennule, eight-articled antenna, four-articled uropod, similar shapes of labium outer lobes. Nevertheless, T. nuwalianensis can be distinguished from T. tinhauae by two distomedial hooks on distal margin of maxilliped endite, fewer carpal spines on pereopod 2–6, fewer leaf-like setae on the superior margin of pereopod 6, and fewer inner setae of the pleopod basis ( Bamber & Bird 1997: 107, 109, Figs 2 B, 3 B–G; present study: Fig 6 A–I, Table 2).Published as part of Tzeng, You-Wei & Hsueh, Pan-Wen, 2014, Two new species of Tanaidacea (Crustacea, Peracarida) from Taiwan, pp. 51-64 in Zootaxa 3802 (1) on pages 58-59, DOI: 10.11646/zootaxa.3802.1.4, http://zenodo.org/record/28611
Fishery biology of mackerels with reference to oceanographic conditions in the coastal waters of Sagami Bay, part II fluctuations of catch and the sea conditions.
No full textMeasurement of the ratio of prompt χ c to J / ψ production in pp collisions at √s = 7 TeV
Full text linkThe prompt production of charmonium χ c and J / ψ states is studied in proton-proton collisions at a centre-of-mass energy of √s = 7 TeV at the Large Hadron Collider. The χ c and J / ψ mesons are identified through their decays χ c → J / ψ γ and J / ψ → μ + μ - using 36 pb - 1 of data collected by the LHCb detector in 2010. The ratio of the prompt production cross-sections for χ c and J / ψ, σ (χ c → J / ψ γ) / σ (J / ψ), is determined as a function of the J / ψ transverse momentum in the range 2 < p T J / ψ < 15 GeV / c. The results are in excellent agreement with next-to-leading order non-relativistic expectations and show a significant discrepancy compared with the colour singlet model prediction at leading order, especially in the low p T J / ψ region
Fishery biology of mackerels with reference to oceanographic conditions in the coastal waters of Sagami Bay, part I shoals and movement.
No full textThe vertebral deformity of thornfish (Terapon jarbua) in the thermal effluent outlet a nuclear power plant in Taiwan
No full textHemimyzon taitungensis Tzeng and Shen 1982
No full text115. Hemimyzon taitungensis Tzeng and Shen, 1982:166, figs. 5–6 Holotype: NTUM 4941 (male, 70), Shin –wu–leu River, Lee –daou, Hai –duan, Taitung County, 1 Apr. 1981, coll. C.–S. Tzeng. Paratype: NTUM 4963 (1, male, 77); NTUM 4964 (1, male, 59); NTUM 4965 (1, male, 62); NTUM 4966 (1, male, 49); NTUM 4967 (1, male, 62) ’ NTUM 4968 (1, male, 55); NTUM 4969 (1, male, 54); NTUM 4970 (1, male, 54); NTUM 4971 (1, male, 53); NTUM 4972 (1, male, 65); NTUM 4973 (1, female, 62); UBC 81–65 (1, 60); same as holotype. Remark. This is an endemic species from eastern Taiwan.Published as part of Ho, Hsuan-Ching & Shao, Kwang-Tsao, 2011, 2957, pp. 1-74 in Zootaxa 2957 on page 3
Production of coloured glass-ceramics from incinerator ash using thermal plasma technology.
No full textParaleptochelia setosa Tzeng & Hsueh 2021, sp. nov.
No full textParaleptochelia setosa sp. nov. Figs 1–5 Material examined. Holotype: non-ovigerous female (NMNS 8288-01), body length 2.5 mm, Jihuei (23°06’54.9”N, 121°24’16.3”E), Taitung County, eastern Taiwan, intertidal, washing from polychaetous worm tube of Eunice taoi Hsueh & Li, 2014, collected by You-Wei Tzeng, 22 July 2013. Allotype: male (NMNS 8288-02), body length 2.1 mm, Shitiping (23°28’57.4”N, 121°30’46.9”E), Hualien County, eastern Taiwan, intertidal, washing from red alga Amansia glomerata C. Agardh, 1822, collected by You-Wei Tzeng, 17 August 2011. Paratypes:male (NMNS 8288-03), body length 2.2 mm, same collection data as allotype; male (NMNS 8288-04), body length 2.2 mm, Jialulan (22°48’10.2”N, 121°11’57.0”E), Taitung County, eastern Taiwan, intertidal, from sand pile, collected by You-Wei Tzeng, 23 July 2013; male (NMNS 8288-05), Shitiping (23°28’57.4”N, 121°30’46.9”E), Hualien County, eastern Taiwan, intertidal, collected by You-Wei Tzeng, 17 August 2011; male (NMNS 8288-06), body length 2.1 mm, Shitiping (23°28’57.4”N, 121°30’46.9”E), Hualien County, eastern Taiwan, intertidal, washing from red alga Mastophora rosea (C. Agardh) Setchell, 1943, collected by You-Wei Tzeng, 20 August 2012; non-ovigerous female (NMNS 8288-07), body length 2.4 mm, same collection data as holotype; 3 non-ovigerous females (NMNS 8288-08), same collection data as allotype; male (NMNS 8288-09), Jihuei (23°06’54.9”N, 121°24’16.3”E), Taitung County, eastern Taiwan, intertidal, washing from M. rosea, collected by You-Wei Tzeng, 18 April 2012; male (NMNS 8288-10), Jihuei (23°06’54.9”N, 121°24’16.3”E), Taitung County, eastern Taiwan, intertidal, washing from polychaetous worm tube of E. taoi, collected by You-Wei Tzeng, 18 April 2012; non-ovigerous female (NMNS 8288-11), same collection data as NMNS 8288-10; male (NMNS 8288-12), same collection data as NMNS 8288-10; 3 non-ovigerous females (NMNS 8288-13), same collection data as NMNS 8288-10; male (NMNS 8288-14), Shitiping (23°28’57.4”N, 121°30’46.9”E), Hualien County, eastern Taiwan, intertidal, washing from red alga M. rosea, collected by You-Wei Tzeng, 21 April 2012; 8 non-ovigerous females (NMNS 8288-15), same collection data as holotype; 4 males (NMNS 8288-16), same collection data as holotype; 3 non-ovigerous females (NMNS 8288-17), Shitiping (23°28’57.4”N, 121°30’46.9”E), Hualien County, eastern Taiwan, intertidal, washing from red alga A. glomerata, collected by You-Wei Tzeng, 21 April 2012. Diagnosis. Female: Body about 7.5 times longer than wide. Maxilliped endite distal margin with one long and strong seta and two blunt spines, inner margin with two coupling hooks. Pereopods 4–6 carpus with four distal spines. Pereopod-6 ischium with two ventral setae. Uropod exopod two-articled, endopod five-articled. Male: Body about six times longer than wide. Carapace 1.5 times longer than wide. Antennule flagellum five-articled, article- 1 with a cluster of proximal aesthetascs and distal aesthetascs. Antenna article-2 without ventral spine. Cheliped carpus about six times longer than wide, fixed finger incisive margin with one low and blunt middle apophysis, and one smaller apophysis on distal one-thirds. Uropod peduncle with a pair of long inner-distal setae and a pair of long ventral setae; exopod two-articled, endopod five-articled. Description (some characters stated in generic or species diagnosis not included). Female: Habitus (Fig. 1A) body slender dorsoventrally flattened. Carapace long elliptical, 0.2 times as long as body, lateral margins with three setae. Pereon 0.6 times as long as body; pereonite-1 shortest, 0.3 times as long as carapace, 0.5 times as long as wide; pereonite-2 about 1.4 times longer than pereonite-1, 0.7 times as long as wide; pereonite-3 1.1 times longer than pereonite-2, 0.8 times as long as wide; pereonite-4 longest, 1.3 times longer than pereonite-3, slightly longer than wide; pereonite-5 0.9 times as long as pereonite-4, nearly as long as wide; pereonite-6 0.8 times as long as pereonite-5, 0.8 times as long as wide; all pereonites with one anterolateral seta. Pleon about 0.2 times as long as body; all pleonites about the same length, with two setae on lateral margin. Pleotelson with two pairs of setae on distal margin. Antennule (Fig. 1C) three-articled plus one distal cap-like segment, 0.6 times as long as carapace; article-1 longest, 0.6 times as long as total length and about 2.7 times longer than wide, outer and inner margin with one subdistal seta, distal margin with one long seta and three broom setae; article-2 about 0.3 times as long as article-1, with two distal setae; article-3 almost 1.2 times longer than article-2, distal margin with two setae, one broom seta, and one aesthetasc; cap-like segment with four long setae. Antenna (Fig. 1D) six-articled; article-1 short and naked; article-2 distal margin with one strong dorsal spine and one strong ventral spine; article-3 shorter than article-2, distal margin with one strong dorsal spine; article-4 longest, over 0.3 times as long as total length, with two distal setae and one distal broom seta; article-5 about 0.6 times as long as article-4, with one distal seta; article-6 very short, with four distal setae. Labrum not observed. Left mandible (Fig. 1E) lacinia mobilis large, subtriangular, distal margin crenulate; incisor with blunt acuminate apex, distal margin with one small protrusion; molar not observed. Right mandible (Fig. 1F) incisor with bifid apex and crenulate distal margin; molar robust, with distal ridges. Labium not observed. Maxillule (Fig. 1G) palp with two distal setae; endite with eleven distal spines, outer margin covered with setules, inner margin with five short setae. Maxilla and epignath not observed. Maxilliped (Fig. 2A) endite (Fig. 2B) distal margin covered with setules; palp article-1 naked, article-2 outer margin with one distal seta, inner margin with one distal seta and three subdistal setae, article-3 inner margin with six setae, article-4 outer margin with one seta, distal margin with six setae. Cheliped (Fig. 2C) basis 0.4 times as long as total length, 1.6 times longer than wide, with one lateral seta; merus triangular; carpus robust, 0.5 times as long as total length, 2.1 times longer than wide, dorsal margin with one distal seta and two small spinules on proximal half, ventral margin with three setae; propodus stout, palm about 1.5 times longer than wide, with one seta and a comb-like row of three setae near dactylus articulation, fixed finger thick, 1.5 times longer than wide, incisive margin with three low process, unguis small; dactylus curved, outer margin with one small proximal seta, incisive margin with one medial low process, unguis larger than that of fixed finger. Pereopod-1 (Fig. 2D) long and slender; coxa with one seta; basis curved, four times longer than wide, dorsal margin with one dorso-subproximal short seta; merus less than 0.4 times as long as basis, naked; carpus nearly as long as merus, with one long and one short dorsodistal seta; propodus about 0.7 times as long as basis, dorsal margin with a cluster of four subdistal setae and one small subdistal spinule, ventral margin with one subdistal seta; dactylus plus unguis curved, almost as long as propodus, unguis 1.3 times longer than dactylus. Pereopod-2 (Fig. 2E) shorter than pereopod-1; coxa with one seta; basis dorsal margin with one short seta on proximal half; merus 1.5 times longer than wide; carpus as long as merus; propodus almost two times longer than carpus, dorsal margin with two long subdistal setae and one small subdistal spinule, ventral margin with one subdistal seta; dactylus curved, with unguis. Pereopod-3 (Fig. 2F) very similar to pereopod-2 but propodus dorsal margin with only one subdistal seta. Pereopod-4 (Fig. 3A) coxa with one seta; basis thick, 2.1 longer than wide, with two ventral broom setae; merus about 0.6 times as long as basis, two times longer than wide; carpus slightly shorter than merus, 1.7 times longer than wide, with one dorsodistal seta, with four spines on distal extremity; propodus 1.3 times longer than carpus, 2.5 times longer than wide, dorsal margin with one distal bipinnate seta, two subdistal setae and one small subdistal spinule, ventral margin with two subdistal spines; dactylus curved, with short unguis. Pereopod-5 (Fig. 3B) very similar to pereopod-4 but basis with only one ventral broom seta, carpus without dorsal seta. Pereopod-6 (Fig. 3C) coxa with one seta; basis over three times longer than wide, naked; merus about 0.4 times as long as basis, two times longer than wide, with one ventrodistal seta and two ventrodistal spines; carpus about as long as merus, two times longer than wide, with one dorsodistal seta, with four spines on distal extremity; propodus 1.3 times longer than carpus, 2.5 times longer than wide, dorsal margin with one distal seta, a cluster of three distal setae and one small subdistal spinule, ventral margin with two subdistal spines; dactylus curved, unguis short. Pleopod-1 (Fig. 3D) peduncle naked; exopod outer margin with one circumplumose seta, distal to inner margin with ten plumose setae and one proximal circumplumose seta; endopod distal to inner margin with nine plumose setae and one proximal circumplumose seta. Uropod (Fig. 3E) exopod article-1 with one distal seta, article-2 with two distal setae; endopod article-1 with one short distal seta and two distal broom setae, article-2 with two distal setae, article-3 longest, with one distal seta and one distal broom seta, article-4 with one distal seta, article-5 with two distal broom setae, one short and three long distal setae. Male: Habitus (Fig. 1B, figure and description based on NMNS 8288-06, 2.1 mm) slender, dorsoventrally flattened. Carapace oblong, less than 0.3 times as long as body, proximal half slightly wider than distal half, with three lateral setae, eye lobe distinct. Pereon over 0.5 times as long as body; pereonite-1 shortest but widest, about 0.3 times as long as wide; pereonite-2 slightly longer than pereonite-1, 0.5 times as long as wide; pereonite-3 1.3 times longer than pereonite-2, less than 0.7 times as long as wide; pereonite-4 1.4 times longer than pereonite-3, 0.9 times as long as wide; pereonite-5 slightly shorter than pereonite-4, 0.9 times as long as wide; pereonite-6 0.7 times as long as pereonite-5, 0.5 times as long as wide; all pereonites with one lateral seta. Pleon shorter than carapace, less than 0.2 times as long as body; all pleonites about the same length, with two lateral setae. Pleotelson with two distal setae. Antennule (Fig. 4A) long, almost 0.6 times as long as body; peduncle article-1 long and slender, over 0.5 times as long as total length, 14 times longer than wide, with one distal seta and two distal broom setae; peduncle article-2 0.4 times as long as article-1, with one distal seta and one subdistal seta; peduncle article-3 very short, 0.2 times as long as article-2, with one distal seta; flagellum article-1 with a cluster of five proximal aesthetascs and two distal aesthetascs, articles 2 and 3 with three distal aesthetascs, article-4 with four distal aesthetascs, article-5 very small, with four setae. Antenna (Fig. 4B, figure and description based on NMNS 8288-03, 2.2 mm) article-1 naked; articles 2 and 3 short and thick, with one long dorsodistal spine; article-4 longest, about 0.35 times as long as total length, with two distal setae and four distal broom setae; article-5 0.5 times as long as article-4, with one distal seta; article-6 very short, with two long and one short seta. Cheliped (Fig. 4C) basis short, 0.1 times as long as total length, 1.8 times longer than wide; merus short, 0.4 times as long as basis, with two ventral setae; carpus long and slender, 0.4 times as long as total length, with two dorsal and two ventral setae; propodus palm over six times longer than wide, with one seta near dactylus articulation, inner surface with a comb-like row of eleven setae; fixed finger partially curved, about 0.3 times as long as propodus, incisive margin with one low and blunt middle apophysis, one smaller distal apophysis and three setae on distal one thirds, outer margin with two setae, unguis short; dactylus (Fig. 4D) curved, with six spinules along incisive margin, proximal half of incisive margin with a row of teeth, within which the most proximal three (arrowed) especially larger, outer margin with one proximal seta, unguis short. Pereopod-1 (Fig. 4F) merus 1.8 times longer than wide; carpus slightly longer and narrower than merus, 2.6 times longer than wide, dorsal margin with one subdistal seta; propodus 1.6 times longer than carpus, four times longer than wide, dorsal margin with two subdistal setae and one small distal spinule, ventral margin with one strong subdistal spine; dactylus plus unguis long and slightly curved, 0.8 times as long as propodus, with three small proximal spinules, unguis shorter than dactylus. Pereopod-2 (Fig. 4G) basis five times longer than wide, dorsal margin with one seta and one broom seta on proximal half; merus less than 0.3 times as long as basis, 1.8 times longer than wide, with one ventrodistal spine; carpus slightly longer than merus, 1.6 times longer than wide, with one ventrodistal spine; propodus 1.7 times longer than carpus, three times longer than wide; dactylus curved, with one proximal transversal row of setules and one middle seta. Pereopod-3 (Fig. 5A) very similar to pereopod-2 but propodus dorsal margin with one subdistal seta. Pereopod-4 (Fig. 5B) coxa with one seta; basis not swollen, 2.7 times longer than wide, with one dorsal broom seta; ischium with two ventral seta; merus 0.4 times as long as basis, 1.8 times longer than wide, with two ventrodistal spines; carpus about as wide and as long as merus, distal margin with two setae and four spines; propodus 1.5 times longer than carpus, 3.3 times longer than wide, dorsal margin with three subdistal setae and one small subdistal spinule, ventral margin with two strong subdistal spines; dactylus curved, with distal setules, unguis sharp. Pereopod-5 (Fig. 5C) very similar to pereopod-4. Pereopod-6 (Fig. 5D) very similar to pereopods 4 and 5 but slightly longer, basis longer and thinner, almost four times longer than wide, with one long ventral seta, propodus slightly curved. Pleopod-1 (Fig. 5E, figure and description based on NMNS 8288-03) peduncle naked; exopod outer margin with one proximal short circumplumose seta, outer to distal margin with twelve plumose setae; endopod outer margin with one proximal short circumplumose seta, outer to distal margin with ten plumose setae, inner margin with one medial circumplumose seta. Uropod (Fig. 5F) peduncle robust, distal margin with a pair of inner setae and a pair of long ventral setae; exopod two-articled, article-1 with one long distal seta, article-2 with two very long distal setae; endopod five-articled, article-1 and 2 distal margin with one seta and a pair of inner pear-shaped spines, article-3 longest, with two distal setae and two broom setae, article-4 with one distal seta, article-5 with two very long distal setae, two shorter distal setae and one distal broom seta. Variation. Almost all males have a low and blunt middle apophysis on incisive margin of fixed finger of cheliped. However, two male paratypes (NMNS 8288-04 and NMNS 8288-05) have a subtriangular middle denticle on incisive margin of fixed finger of cheliped (Fig. 4E). Except for the cheliped fixed finger, the characteristics of these two paratypes are almost identical to the allotype, with minor differences in some setae on cheliped and pereopods. Etymology. The name is derived from the Latin “ setosa ” (hairy), referring to the numerous long setae on the male uropod. Type locality. Jihuei, Taitung County, eastern Taiwan. Distribution. It is only known from Shitiping, Jialulan and Jihuei, eastern Taiwan. Remarks. The two members of Paraleptochelia, P. gadgeti (West Australia) and P. magnispina (East Tanzania), are from the Indian Ocean, whereas the present species, P. setosa sp. nov., is the first species in the genus reported outside of this region. Of the three species, P. gadgeti is readily distinguished by having a longer and more slender body (ten times longer than wide, comparing to seven in P. magnispina and six in P. setosa), longer antennule and cheliped, and a unique trapezoidal apophysis on the fixed finger of the male cheliped (Edgar 2012). Morphologically, the present species is somewhat more similar to P. magnispina, especially in male habitus and cheliped. However, P. setosa differs from the latter species by having: 1) a less slender body in both sexes; 2) the male antennule flagellum having five articles, compared to six in P. magnispina; 3) the male antenna article-2 lacks a ventral spine; 4) the female maxilliped endite inner margin has two coupling hooks (versus absent in P. magnispina); 5) the cheliped fixed finger has one subtriangular middle denticle on the incisive margin in some male individuals; 6) the female pereopods 4–6 carpus has four distal spines (versus three in P. magnispina); 7) the female pereopod-6 ischium has two ventral setae (versus one in P. magnispina); 8) the uropod exopod and endopod have two and five articles, respectively, in both sexes (versus one and four in P. magnispina, respectively) (Guţu 2016; Table 1).Published as part of Tzeng, You-Wei & Hsueh, Pan-Wen, 2021, Additions of new species to the Paratanaoidea (Crustacea, Tanaidacea) of Taiwan, pp. 131-148 in Zootaxa 4949 (1) on pages 133-136, DOI: 10.11646/zootaxa.4949.1.7, http://zenodo.org/record/463601
Aparatanais lenoprimorum Tzeng & Hsueh, 2014, sp. nov.
No full textAparatanais lenoprimorum sp. nov. (Figs 1–3, Table 1) Material examined. Holotype (NMNS 7214 - 1), non-ovigerous female, 3.85 mm, Shitiping (23 ° 28 ’N, 121 ° 30 ’E), eastern Taiwan, intertidal, washing from green alga Halimeda sp., collected by You-Wei Tzeng, March 25, 2011; paratypes: one non-ovigerous female (NMNS 7214 - 2), 2.54 mm, Jihuei (23 °06’ 54.9 ”N, 121 ° 24 ’ 16.3 ”E), eastern Taiwan, intertidal, washing from polychaetous worm tube of Eunice sp., collected by You-Wei Tzeng, August 8, 2010; one specimen one manca-III (NMNS 7214 - 3), 1.39 mm, Shitiping (23 ° 28 ’ 57.4 ”N, 121 ° 30 ’ 46.9 ”E), eastern Taiwan, intertidal, washing from brown alga Sargassum sp., collected by You-Wei Tzeng, August 8, 2010; one non-ovigerous female (NMNS 7214 - 4), 3.08 mm, Jihuei (23 °06’ 54.9 ”N, 121 ° 24 ’ 16.3 ”E), eastern Taiwan, intertidal, October 17, 2009. Diagnosis. Female: Cephalothorax with carapace divided into plates. Pleonites 1–4 epimera with one plumose seta. Left mandible lacinia mobilis without crenulations, right mandible incisor superior margin smooth. Maxilliped palp article 2 modified spine with four denticles. Cheliped palms without various spines, fixed finger with three setae on incisive margin. Description. Holotype (Fig 1 A): body long cylindrical, with length/width ratio about 6.6. Cephalothorax about 1 / 5 of body length, as long as broad, with two well separated eye-lobes, carapace divided into four plates. Pereon with all pereonites shorter than broad, pereonites 2 and 4 longest, interpereonites extended; pleon about 1 / 5 of body length, pleonites 1–4 each with one plumose seta laterally; pleotelson semicircular. Antennule (Fig 1 C) about 3 / 5 of cephalothorax length, four-articled plus one terminal cap-like segment; article 1 40 % of total length of antennule, with four lateral setae and one distal seta; article 2 short, about 40 % length of article 1, distal margin with two simple setae and three short bipinnate setae; article 3 shorter than article 2, with one distal seta; article 4 as long as article 2 and article 3 combined; cap-like segment with five setae. Antenna (Fig 1 D) six-articled (i.e. five articles plus one terminal cap-like segment); article 2 three times longer than article 3, with one superodistal seta, superior margin setulated; article 3 superior spine acute; article 4 1.3 times as long as article 3; article 5 as long as article 3, with two distal setae; cap-like segment with five long setae. Labrum (Fig 1 E) hood-shaped covered with fine setules. Labium (Fig 1 F) bi-lobed, outer lobes much reduced, superior margin of these and inner lobes finely setules. Mandibles (Fig 1 G–H) pars molaris well developed; lacinia mobilis superior margin not crenulated; right incisor pointed, superior margin smooth. Maxillule endites (Fig 1 I) with six long spines and one short spine distally, fine setules on outer margin; palps (Fig 1 J) with two distal long setae. Maxilliped endites (Fig 2 A) distal margin with three longitudinal rows of setules, two rounded tubercles, and one medial long seta, distolateral margin with about ten denticles; palp (Fig 2 B–D) article 1 without seta, article 2 with two simple setae and one large spine with four serrations, article 3 with three long bipinnate setae and one short bipinnate seta; article 4 with three long bipinnate setae, one long simple seta, one short simple seta, and several proximal setules. Cheliped (Fig 2 E) attached to cephalothorax via sclerite, with triangular insertion to basis, basis typical, with one distodorsal seta; merus with one inferior seta; carpus stout, 1.2 times ltb (longer than broad), with two superior setae; propodus including fixed finger 0.8 times as long as carpus, kukri-shaped spine absent, inferior margin with two setae, without medial spine, fixed finger incisive margin with large blunt distal process and three setae; dactylus stout, with one medial peg-like spine, unguis heavily calcified. Pereopod 1 (Fig 2 F) basis long and slender, 5.7 times ltb, naked; ischium very short, 0.75 times ltb, with one inferodistal seta; merus elongated, 3.0 times ltb, naked; carpus 2.5 times ltb, with three distal setae; propodus 1.5 times as long as carpus, 3.6 times ltb, with three distal setae and one small superodistal denticle; dactylus and unguis combined 0.8 times as long as propodus. Pereopod 2 (Fig 2 G) shorter than pereopod 1; coxa with one simple seta; basis stout, 2.2 times ltb; ischium very short and unremarkable, with one inferior seta; merus with one inferodistal spine; carpus as long as merus, with one large superodistal spine and two smaller inferodistal spines; propodus shorter than merus and carpus combined, with three distal setae and one small superodistal denticle. Pereopod 3 (Fig 3 A) similar to pereopod 2 except basis more slender, 4.0 times ltb. Pereopod 4 (Fig 3 B) the shortest, 90 % length of pereopod 5 and 85 % length of pereopod 6; basis stout, 2.0 times ltb, with one inferior seta and two inferodistal setae; merus with two inferodistal non-serrated spines, inferior margin with one row of fine setules; carpus with one large superodistal spine and three smaller inferodistal spines, inferior margin with two rows of setules; propodus with one long superodistal seta, one dorsal plumose seta and two inferodistal spines, inferior margin with one row of fine setules; dactylus and unguis fused to claw. Pereopod 5 (Fig 3 C) similar to pereopod 4 but basis inferior margin with two bipinnate setae, one simple seta and two inferodistal setae. Pereopod 6 (Fig 3 D) similar to pereopod 4 but basis with one superior seta, one inferior seta and one inferodistal seta, propodus with three long superodistal strong pinnate setae. Pleopod (Fig 3 E) basis naked; exopod with 22 plumose setae on outer margin; endopod inner margin setulate with one plumose seta, outer margin with 17 plumose setae. Uropod (Fig 3 F) short; peduncle as long as broad; exopod one-segmented, just over 1 / 2 of endopod length, with two distal setae; endopod two-segmented, as long as peduncle, segment- 1 with one distal seta, segment- 2 with six distal setae and two short bipinnate setae on lateral margin. Etymology. The name is derived from the Latin “ lenis ” (smooth) and “ primorum ” (incisor), implying the presence of smooth superior margin on right incisor of the species. Type locality. Shitiping, eastern Taiwan. Distribution. It is only known from Shitiping and Jihuei, eastern Taiwan. Remarks. Of six described species, the present species most closely resembles Aparatanais denticulatus (Gutu & Ramos, 1995), recorded from Columbia, South America. Both species have the carapace divided into four plates and the lack of kukri-shaped sinuate spine on palm of chelipeds (Table 1). Yet, they are distinguishable by several morphological characters. First, Aparatanais lenoprimorum lacks any serration on the left mandible lacinia mobilis, in contrast to 5 serrations on that of A. denticulatus. Second, the former species has non-crenulated right mandible incisor and four plumose setae on pleon epimerons, whereas the latter species has crenulations on right mandible incisor and four simple setae on pleon epimerons. Finally, the former species has serrated spines on the second article of the maxilliped palp, but the latter species possesses denticulated spines on the same mouth part (Gutu & Ramos, 1995: Figs 6 A, E–F, 7 A–C; present study: Figs 1 A–B, G–H, 2 B–E, Table 1). Bird and Bamber (2013) commented that the primary morphological character for the genus Aparatanais is the presence of the heavy serrate spine on the maxilliped palp article 2, and other supporting characters (i.e., small maxilliped endite tubercles, a kukri-shaped cheliped palm spine, a long pereopod 1 merus, a relatively narrow pereopod 3 propodus, and short uropods) are not necessarily present simultaneously in all the taxa of the genus. On the same token, the lack of crenulations on right mandible incisor of the present species may be considered as an exemption from the generic diagnosis. A. lenoprimorum A. denticulatus A. intermedius A. malignus A. spinanotandus A. timutimu A. vicentetis body robust, 2.54 mm; robust, 4.2 mm robust, 2.16 mm robust, 3.1 mm robust, 3 mm fairly slender, robust, 3.5 mm fairly slender, 3.85 mm 2.3–5.8 mm carapace plated plated not plated not plated plated not plated not plated mandible not serrated 5 serrations 5 serrations 4 serrations 5 serrations? 2 serrations lacinia mobilis mandible pointed, not crenulate pointed, crenulate? obtuse, crenulate, pointed, crenulate pointed, crenulate pointed, crenulate incisor bifid maxillule 7 7? 7 9 atleast 7 7 apical spines kukri-shaped absent absent absent present present present present cheliped palm spine pleon 4 plumose 4 simple absent 4 plumose absent 4 plumose 4 plumose epimeral setaePublished as part of Tzeng, You-Wei & Hsueh, Pan-Wen, 2014, Two new species of Tanaidacea (Crustacea, Peracarida) from Taiwan, pp. 51-64 in Zootaxa 3802 (1) on pages 52-57, DOI: 10.11646/zootaxa.3802.1.4, http://zenodo.org/record/28611
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