22,400 research outputs found
Clinical evaluation of allograft (DFDBA) and xenograft (Bi-Oss) combined with bioresorbable membrances in the treatment of intraosseous defects: Report of cased.
No full textRelictogammarus Hou & Sket 2016, GEN. NOV.
No full textGENUS RELICTOGAMMARUS GEN. NOV. <p> <i>Type and the only known species</i></p> <p> <i>Gammarus stoerensis</i> Reid, 1938.</p> <p> <i>Etymology</i></p> <p> In Latin <i>relictus</i> = retarded, left behind.</p> <p> <i>Distribution</i></p> <p>The species is present intertidally along the eastern and north-western North Atlantic waters.</p> <p> <i>Remarks</i></p> <p> This Atlantic marine or brackish water species splits from the Gammaridae tree basally, and is the sister taxon to the rest of the family. The same phylogenetic position of this species was shown by MacDonald <i>et al.,</i> 2005.</p>Published as part of <i>Hou, Zhonge & Sket, Boris, 2016, A review of Gammaridae (Crustacea: Amphipoda): the family extent, its evolutionary history, and taxonomic redefinition of genera, pp. 323-348 in Zoological Journal of the Linnean Society 176 (2)</i> on page 336, DOI: 10.1111/zoj.12318, <a href="http://zenodo.org/record/5357553">http://zenodo.org/record/5357553</a>
Sinocytheridea Hou 1982
No full textGenus <i>Sinocytheridea</i> Hou, 1982 Type species <p> <i>Sinocytheridae latiovata</i> Hou in Hou <i>et al</i>., 1982, junior synonym of <i>Sinocytheridea impressa</i> (Brady, 1869) following the revision of Whatley & Zhao (1988a).</p>Published as part of <i>Chitnarin, Anisong, Forel, Marie-Béatrice & Tepnarong, Prachya, 2023, Holocene ostracods (Crustacea) from a whale-fall excavation site from the Chao Phraya delta, Central Thailand, pp. 120-151 in European Journal of Taxonomy 856 (1)</i> on page 129, DOI: 10.5852/ejt.2023.856.2033, <a href="http://zenodo.org/record/7616240">http://zenodo.org/record/7616240</a>
Neoascochyta mortariensis L. W. Hou
No full text<p> <i>Neoascochyta mortariensis</i> L. W. Hou et al., Studies in Mycology. 96: 391. 2020</p> <p>Description.</p> <p>see Hou et al. (2020 b).</p> <p>Materials examined.</p> <p> China, Zhejiang Province, Hangzhou City, from healthy leaves of <i>C. sinensis</i> cv. <i>Longjing 43</i>, 16 Nov. 2017 Y. C. Wang, culture ex-type CGMCC 3.24251 = YCW 1346.</p> <p>Notes.</p> <p> <i>Neoascochyta mortariensis</i> was introduced as <i>Didymella graminicola</i> previously. It was described as a new species in <i>Neoascochyta</i>, distant from the authentic culture of <i>D. graminicola</i> (currently: <i>Neoascochyta graminicola</i>) (Hou et al. 2020 b). <i>Neoascochyta mortariensis</i> was first isolated from <i>Oryza sativa</i> in Italy and formed colonies on PDA covered by dense felty aerial mycelium (Hou et al. 2020 b). It formed a distinct lineage closely related to <i>N. tardicrescens</i> (Fig. 4). In the present study, one strain was isolated from diseased tea plant leaves. This is the first report of <i>N. mortariensis</i> isolated from <i>C. sinensis</i>.</p>Published as part of <i>Wang, Yuchun, Tu, Yiyi, Chen, Xueling, Jiang, Hong, Ren, Hengze, Lu, Qinhua, Wei, Chaoling & Lv, Wuyun, 2024, Didymellaceae species associated with tea plant (Camellia sinensis) in China, pp. 217-251 in MycoKeys 105</i> on pages 217-251, DOI: 10.3897/mycokeys.105.11953
Neobelocera lii Hou & Chen, sp. nov.
No full text<i>Neobelocera lii</i> Hou & Chen, sp. nov. <p>(Figs 17–29)</p> <p> <b>Description</b>. Length of body 1.90–2.00 mm (male), 2.60–2.80 mm (female); including forewing 3.00– 3.40 mm (male), 3.80–4.00 mm (female); forewing length 2.60 mm (male), 3.20 mm (female).</p> <p> <b>Coloration</b>. Vertex, pronotum, mesonotum (Fig. 17) dirty yellowish brown. Frons (Fig. 18) with basal half dark brown, apical half yellowish white. Genae yellowish white. Clypeus pale yellowish brown to brown. Eyes dark brown. Ocelli reddish brown. Antennae with first segment blackish brown, except median longitudinal band pale yellowish brown, second segment dirty yellowish brown. Thorax with sterna, including coxae of legs yellowish white to pale yellowish brown. Legs yellowish brown, speckled with brown markings. Forewing (Fig. 19) pale yellowish white, almost hyaline, basal part uniform blackish brown and apical part from transverse veins to apex with blackish brown markings, nearly V-shaped, in dark portion veins bear short white stripe at intervals. Pterostigma blackish brown. Abdomeinal terga dark brown, pleura and sterna yellowish white to yellowish brown, except central area reddish orange. Pygofer and anal segment dark brown. Genital styles and aedeagus yellowish brown.</p> <p> <b>Head and Thorax</b>. Head including eyes wider than pronotum (1.14:1). Vertex (Fig. 17) wider at base than long submedially about 3.46:1. Frons (Fig. 18) longer in middle line than wide at widest part about 1.2:1. Antennae with first segment shorter than second segment about 0.5:1, second segment cylindrical, longer than wide about 2.5:1. Pronotum (Fig. 17) subequal to vertex submedially. Mesonotum longer than pronotum and vertex combined about 2.5:1. Forewing (Fig. 19) longer in middle line than wide at widest part about 2.79:1. Basal segment of digitus longer than second and third together, about 2.0:1.</p> <p> <b>Male Genitalia</b>. Anal segment (Figs 20, 21, 24) small, ring-like, ventral margin with a stout process medially. Pygofer in caudal view (Figs 23, 24) with opening larger in length than width, ventral margin concave medially, with two short lobes at lateral side, pygofer in profile (Fig. 22) with ventral margin longer than dorsal margin, posterior margin convex caudad. Genital styles (Figs 24, 27, 28) moderately long, widen apically, apical margin slightly concave. Phallus (Figs 25, 26) expanded at base, with aedeagus and phallobase. Phallobase developed, arising from base of phallus, median portion slightly expanded, forming a half sheath at apical half, surrounding aedeagus dorsally, in dorsal view (Fig. 26), phallobase forked unequally at apex. Aedeagus tubular, slender, curved at apical 1/8, forming a node at apex, with 3 spine-like processes subapically. Diaphragm (Fig. 23) membranous, separated.</p> <p> <b>Female Genitalia</b>. Female pygofer (Fig. 29) with first valvifers moderately large, second valvifers long, broad and large. Ovipositor shorter than pygofer distinctly. Gonangulum small, apex blunt, connected first valvifers and apart from first valvulae.</p> <p> <b>Type Material</b>. Holotype: male, CHINA: Huanan Botanical Garden (23° 0 8′N, 113′14′E), Guangzhou, Guangdong Province, 22 Nov. 2006, collected by X.-S. Chen; paratypes 1 male, 4 females, same data as holotype; paratypes 2 males, 1 female, CHINA: Sanzhao County, Guangdong Province, 6 Oct. 2008, collected by X.-H. Hou; paratype 1 male, CHINA: Diaoluoshan National Natural Reserve (18°39´N, 109°32´E- 18°43´N, 109°56´E), Hainan Province, 16 Aug. 2007, collected by B. Zhang.</p> <p> <b>Host Plant</b>. Bamboo (<i>Neosinocalamus</i> sp.).</p> <p> <b>Distribution</b>. Southeastern China (Guangdong: Guanzhou, Zhuhai, Hainan: Diaoluoshan).</p> <p> <b>Remarks</b>. This new species is similar to <i>N. asymmetrica</i> Ding & Yang, but can be distinguished from the latter by the following features: frons yellowish white at apical half, without dark brown transverse stripes along the inner side of lateral carinae and subapical portion of median carina; genae yellowish white, without pale brown spots; forewing with basal half brown totally, apex with a distinct dark brown V-shaped marking; anal segment with a short, stout process at ventral margin; genital styles expanded apically, apical margin slightly concave; aedeagus with 3 spine-like processes subapically, phallobase thick, half-sheath-shaped. The body coloration pattern and the structural features of male genitalia are distinctly different from other known species in this genus.</p> <p> <b>Etymology</b>. The species is named after the Chinese entomologist Prof. Zi-Zhong Li in honor of his contributions to homopterous taxonomy.</p>Published as part of <i>Hou, Xiao-Hui & Chen, Xiang-Sheng, 2010, Review of the Oriental bamboo delphacid genus Neobelocera Ding & Ya n g (Hemiptera: Fulgoromorpha: Delphacidae) with the description of one new species, pp. 39-50 in Zootaxa 2387</i> on pages 47-49, DOI: <a href="http://zenodo.org/record/275835">10.5281/zenodo.275835</a>
Epicoccum tobaicum L. W. Hou
No full text<p> <i>Epicoccum tobaicum</i> (Svilv.) L. W. Hou et al., Studies in Mycology. 96: 348. 2020</p> <p>Description.</p> <p>see von Szilvinyi (1936).</p> <p>Materials examined.</p> <p> China, Anhui Province, Huangshan City, from diseased leaves of <i>C. sinensis</i> cv. <i>Zhonghuang 1</i>, 2 Jul 2019, Y. C. Wang, culture YCW 372.</p> <p>Notes.</p> <p> <i>Epicoccum tobaicum</i> was synonymised as <i>E. nigrum</i> previously (Hou et al. 2020 b). It was resurrected as a separate species, distant from <i>E. nigrum</i> (Hou et al. 2020 b). Conidia were globular to pear-shaped, dark, verrucose and multicellular (Han et al. 2021). It formed a distinct lineage closely related to <i>E. rosae</i> (Fig. 3). This species as a pathogen was isolated from diseased leaves showing leaf spot of flowering cherry and oat (Han et al. 2021; Jeong et al. 2022 a). In the present study, five strains were isolated from diseased tea plant leaves. This is the first report of <i>E. tobaicum</i> isolated from <i>C. sinensis</i>.</p>Published as part of <i>Wang, Yuchun, Tu, Yiyi, Chen, Xueling, Jiang, Hong, Ren, Hengze, Lu, Qinhua, Wei, Chaoling & Lv, Wuyun, 2024, Didymellaceae species associated with tea plant (Camellia sinensis) in China, pp. 217-251 in MycoKeys 105</i> on pages 217-251, DOI: 10.3897/mycokeys.105.11953
Lagynochthonius zhijinensis Hou & Feng & Zhang 2023, sp. nov.
No full text<i>Lagynochthonius zhijinensis</i> sp. nov. (ṂĤṄṁae) <p>Figs 44–47</p> <p> <b>Type material.</b> Holotype ♀ (Ps.-MHBU-GZZJ-19-04-01): China, Guizhou Province, Zhijin County, Chengguan Town, Yangliu Village, Long Cave, under stones in the deep zone [26°40′45.63″N, 105°47′16.30″E], 1345 m a.s.l., 2 October 2019, Zegang Feng & Lingchen Zhao leg. Paratype: 1 ♀ (Ps.-MSWU-GZZJ-19-04-02), with the same data as the holotype.</p> <p> <b>Etymology.</b> Named after the Zhijin County, near the type locality.</p> <p> <b>Diagnosis (♀).</b> Moderately sized troglomorphic species with elongated appendages; carapace without eyes or eyespots; anterior margin of carapace thin, finely denticulated, epistome pointed and small, triangular; posterior margin of carapace with two setae; tergites II–III each with two setae, tergites IV–VII each with four setae. Pedipalps slender, femur 8.47–8.53 times longer than broad; chela 7.46–7.71 times longer than broad; only fixed chelal finger with intercalary teeth and a modified accessory tooth (<i>td</i>) on retrolateral face; chelal fingers slightly curved in dorsal view; chemosensory setae (<i>sc</i>) present on dorsum of chelal hand.</p> <p> <b>Description.</b> Females (holotype and paratype), male unknown (Figs 45–47).</p> <p>Colour: generally pale yellow, chelicerae, pedipalps and tergites slightly darker, soft parts pale.</p> <p>Cephalothorax (Figs 46C, 47A): carapace 0.93–0.98 times longer than broad, gently narrowed posteriorly; surface smooth, without furrows; no traces of eyes; anterior margin slightly serrate; epistome pointed and small, triangular; with 18 setae arranged s4s: 4: 4: 2: 2, most setae heavy, long and gently curved, anterolateral setae much shorter than others; with two pairs of lyrifissures, first pair situated middle to the setae of ocular row, second pair situated lateral to the sole pair of setae of posterior row. Chaetotaxy of coxae: P 3, Ⅰ 3, II 4, III 5, IV 5–6; manducatory process with two acuminate distal setae, anterior seta less than 1/2 length of medial seta; apex of coxa Ⅰ with small, rounded anteromedial process; coxae II with 11–12 terminally indented coxal spines on each side, set as an oblique and arc row, longer spines present in the middle of the row, becoming shorter distally and proximally and incised for about half their length (Fig. 47C); intercoxal tubercle absent; without sub-oral seta.</p> <p>Chelicera (Figs 46D, 47B): large, about as long as carapace, 2.29–2.31 times longer than broad; five setae and two lyrifissures (exterior condylar lyrifissure and exterior lyrifissure) present on hand, all setae acuminate, ventrobasal seta shorter than others; movable finger with one medial seta. Cheliceral palm with moderate hispid granulation on both ventral and dorsal sides. Both fingers well provided with teeth, fixed finger with 20–24 teeth, distal one largest; movable finger with 18–19 retrorse contiguous small teeth; galea absent (Fig. 47B). Serrula exterior with 20–21 blades and serrula interior with 13–15 blades. Rallum with seven blades, the distal one longest and recumbent basally, with fine barbules and slightly set apart from the other blades, latter tightly grouped and with long pinnae, some of which are subdivided (Fig. 47D).</p> <p> Pedipalp (Figs 46A–B, F, 47E–G): long and slender, trochanter 1.25–1.32, femur 8.47–8.53, patella 2.21–2.37, chela 7.46–7.71, hand 3.04–3.17 times longer than broad; femur 2.84–3.02 times longer than patella; movable chelal finger 1.42–1.45 times longer than hand and 0.58–0.59 times longer than chela. Setae generally long and acuminate; one distal lyrifissure present on patella (Figs 46F, 47E). Chelal palm gradually constricted towards fingers, apodeme complex of movable chelal finger strongly sclerotized, with weak granulation dorsally at base of fixed chelal finger. Fixed chelal finger and hand with eight trichobothria, movable chelal finger with four trichobothria, <i>ib</i> and <i>isb</i> situated close together, submedially on dorsum of chelal hand; <i>eb</i>, <i>esb</i> and <i>ist</i> forming a straight oblique row at base of fixed chelal finger; <i>it</i> slightly distal to <i>est</i>, situated subdistally; <i>et</i> slightly near to tip of fixed chelal finger, very close to chelal teeth; <i>dx</i> situated distal to <i>et</i>; <i>sb</i> situated midway between <i>b</i> and <i>st</i>; <i>b</i> and <i>t</i> situated subdistally and situated at the same level as <i>est</i> and <i>it</i>, respectively (Fig. 47F). A tiny retrolateral lyrifissure present at base of fixed chelal finger (situated distal to <i>ist</i>). Both chelal fingers with a row of teeth, heterodentate, spaced regularly along the margin, larger teeth present in the middle of the row, becoming smaller and closer distally and proximally: fixed chelal finger with 23 macrodenticles, slightly retrorse and pointed, plus 11– 12 intercalary microdenticles, 34–35 in total; movable chelal finger with 21–22 macrodenticles (slightly smaller than teeth on fixed chelal finger), slightly retrorse and pointed, plus 7–8 vestigial, rounded and contiguous basal teeth, 28–30 in total (Fig. 47F). Chelal fingers slightly curved in dorsal view; microsetae (chemosensory setae) present on dorsum of chelal hand (Figs 46B, 47G).</p> <p>Opisthosoma: generally typical, pleural membrane finely granulated. Tergites and sternites undivided; setae uniseriate and acuminate. Tergal chaetotaxy Ⅰ–XII: 2–3: 2: 2: 4: 4: 4: 4: 5: 5: 2: T2T: 0, tergites VIII and IX each with an unpaired median seta. Sternal chaetotaxy IV–XII: 13: 9: 9–10: 8–9: 9: 9: 7–8: 0: 2. Anterior genital operculum with 9–10 setae, posterior margin with 12–14 marginal setae, 21–24 in total (Fig. 46E).</p> <p>Legs (Fig. 47H–I): generally typical, long and slender. Fine granulation present on anterodorsal faces of femur IV and patella IV. Femur of leg Ⅰ 1.76–1.79 times longer than patella and with one lyrifissure at the base of femur; tarsus 2.48–2.56 times longer than tibia. Femoropatella of leg IV 4.12–4.13 times longer than deep; tibia 6.27–6.36 times longer than deep; with basal tactile setae on both tarsal segments: metatarsus 3.56 times longer than deep (TS = 0.28–0.34), tarsus 14.17–14.33 times longer than deep and 2.66–2.69 times longer than metatarsus (TS = 0.31–0.34). Arolium slightly shorter than the claws, not divided; claws simple.</p> <p>Dimensions (length/breadth or, in the case of the legs, length/depth in mm; ratios in parentheses). Females: body length 2.17–2.36. Pedipalps: trochanter 0.25/0.19–0.20 (1.25–1.32), femur 1.27–1.28/0.15 (8.47–8.53), patella 0.42–0.45/0.19 (2.21–2.37), chela 1.79–1.85/0.24 (7.46–7.71), hand 0.73–0.76/0.24 (3.04–3.17), movable chelal finger length 1.06–1.08. Chelicera 0.71–0.74/0.31–0.32 (2.29–2.31), movable finger length 0.37–0.38. Carapace 0.62–0.65/0.66–0.67 (0.93–0.98). Leg Ⅰ: trochanter 0.19–0.21/0.16 (1.19–1.31), femur 0.70–0.72/0.09 (7.78–8.00), patella 0.39–0.41/0.08–0.09 (4.56–4.88), tibia 0.31–0.32/0.06 (5.17–5.33), tarsus 0.77–0.82/0.06–0.07 (11.71– 12.83). Leg IV: trochanter 0.28–0.29/0.16–0.18 (1.61–1.75), femoropatella 0.99–1.03/0.24–0.25 (4.12–4.13), tibia 0.69–0.70/0.11 (6.27–6.36), metatarsus 0.32/0.09 (3.56), tarsus 0.85–0.86/0.06 (14.17–14.33).</p> <p> <b>Distribution.</b> Known only from the type locality.</p> <p> <b> Key to the species of <i>Lagynochthonius</i> from China</b> </p> <p> 1 Carapace without antero-median setae; trichobothrium <i>sb</i> closer to <i>b</i> than to <i>st</i>..................................... 2</p> <p> - Carapace with antero-median setae; trichobothrium <i>sb</i> closer to <i>st</i> than to <i>b</i> or midway between <i>st</i> and <i>b</i>................ 3</p> <p> 2 Chela 7.03 (♂) times as long as broad (length 2.04 mm); epistome pointed and small, triangular............................................................................................ <i>L. xinjiaoensis</i> Hou, Gao & Zhang, 2022</p> <p> - Chela 6.44–6.46 (♂), 5.87–6.04 (♀) times as long as broad (length 1.55–1.61 (♂), 1.69–1.76 (♀) mm); epistome small and obtuse, rounded..................................................... <i>L. magnidentatus</i> Hou, Gao & Zhang, 2022</p> <p>3 Carapace without eyes or eyespots........................................................................ 4</p> <p>- Carapace with eyes or eyespots......................................................................... 13</p> <p>4 At least one chela finger with intercalary teeth.............................................................. 5</p> <p>- Both chelal fingers without intercalary teeth............................................................... 21</p> <p>5 Only fixed chelal finger with intercalary teeth............................................................... 6</p> <p>- Both chelal fingers with intercalary teeth................................................................... 8</p> <p> 6 Trichobothrium <i>sb</i> closer to <i>st</i> than to <i>b</i>; tergite Ⅹ with four setae............................................... 7</p> <p> - Trichobothrium <i>sb</i> situated midway between <i>st</i> and <i>b</i>; tergite Ⅹ with two setae..................... <i>L. zhijinensis</i> <b>sp. nov.</b></p> <p> 7 The intercalary teeth round and obtuse; the teeth on movable chelal fingers retrorse and contiguous; chela length 1.57–1.61 (♂), 1.64–1.69 (♀) mm; movable chelal finger length 0.93–0.96 (♂), 0.99–1.01 (♀) mm.... <i>L. retrorsus</i> Hou, Gao & Zhang, 2022</p> <p> - The intercalary teeth small and pointed; the teeth on movable chelal fingers pointed and well-spaced; chela length 2.07–2.16 (♂), 2.06–2.19 (♀) mm; movable chelal finger length 1.24–1.25 (♂), 1.20–1.26 (♀) mm.................................................................................................. <i>L. spinulentus</i> Hou, Gao & Zhang, 2022</p> <p>8 Tergites II–III and Ⅹ each with four setae.................................................................. 9</p> <p>- Tergites II–III and Ⅹ each with two setae.................................................................. 10</p> <p> 9 Trichobothrium <i>sb</i> closer to <i>st</i> than to <i>b</i>; body length 1.42 (♂), 1.59 (♀) mm; chela 6.65 (♂), 6.63 (♀) times as long as broad (length 1.33 (♂), 1.26 (♀) mm); palpal femur 7.15 (♂), 7.42 (♀) times as long as broad (length 0.93 (♂), 0.89 (♀) mm); coxae II with seven terminally indented coxal spines on each side................................. <i>L. longedentatus</i> <b>sp. nov.</b></p> <p> - Trichobothrium <i>sb</i> situated midway between <i>st</i> and <i>b</i>; body length 1.63 (♂), 1.81–2.20 (♀) mm; chela 8.76 (♂), 8.30–8.32 (♀) times as long as broad (length 1.84 (♂), 1.83–1.91 (♀) mm); palpal femur 10.46 (♂), 10.07–10.38 (♀) times as long as broad (length 1.36 (♂), 1.35–1.41 (♀) mm); coxae II with 9–11 terminally indented coxal spines on each side.................................................................................. <i>L. yaowangguensis</i> Hou, Gao & Zhang, 2022</p> <p>10 Chelal fingers straight or slightly curved in dorsal view; fixed chelal finger with max. 47 teeth, movable chelal finger with max. 42 teeth............................................................................................ 11</p> <p> - Chelal fingers markedly curved in dorsal view; fixed chelal finger with 58–60 teeth, movable chelal finger with 60–61 teeth.................................................................................. <i>L. guanniuensis</i> <b>sp. nov.</b></p> <p> 11 Palpal femur 8.07–8.93 (♂) times as long as broad (length 1.21–1.25 mm), chela length 1.68–1.76 (♂) mm; trichobothrium <i>sb</i> closer to <i>st</i> than to <i>b</i>.................................................................................. 12</p> <p> - Palpal femur 7.57–7.64 (♂) times as long as broad (length 1.06–1.07 mm), chela length 1.53–1.54 (♂) mm; trichobothrium <i>sb</i> situated midway between <i>st</i> and <i>b</i>.............................................. <i>L. fengi</i> Hou, Gao & Zhang, 2022</p> <p> 12 Carapace markedly narrowed posteriorly; chela 8.38–8.84 (♂) times as long as broad, hand 3.38–3.58 (♂) times longer than broad; proximal half of movable chelal finger without vestigial teeth; trichobothrium <i>sb</i> of movable chelal finger 1.22–1.24 times as far from <i>st</i> as from <i>b</i>............................................... <i>L. serratus</i> Hou, Gao & Zhang, 2022</p> <p> - Carapace gently narrowed posteriorly; chela 7.00 (♂) times as long as broad, hand 2.92 (♂) times longer than broad; proximal half of movable chelal finger with six vestigial teeth; trichobothrium <i>sb</i> of movable chelal finger 1.67 times as far from <i>st</i> as from <i>b</i>............................................................... <i>L. xiaolinensis</i> Hou, Gao & Zhang, 2022</p> <p>13 Troglomorphic species with a larger body size and elongate appendages: body length not less than 1.71 (♂, ♀) mm, chela length not less than 1.32 (♂, ♀) mm; without corneate eyes, only anterior pair of eyespots present.......................... 14</p> <p>- Epigean species with smaller body size and without elongate appendages: body length not more than 1.60 (♂, ♀) mm, chela length not more than 1.00 (♂, ♀) mm; with corneate eyes, anterior pair of eyes well developed....................... 15</p> <p> 14 Chela 7.00–7.14 (♂), 6.40–6.46 (♀) times as long as broad (length 1.54–1.57 (♂), 1.55–1.60 (♀) mm); palpal femur 8.21–8.50 (♂), 7.50–7.87 (♀) times as long as broad (length 1.15–1.19 (♂), 1.18–1.20 (♀) mm); coxae II with 8–9 terminally indented coxal spines on each side................................................... <i>L. crassus</i> Hou, Gao & Zhang, 2022</p> <p> - Chela 7.33–7.67 (♂), 6.71–6.82 (♀) times as long as broad (length 1.32–1.38 (♂), 1.41–1.50 (♀) mm); palpal femur 6.92–7.23 (♂), 6.80–7.29 (♀) times as long as broad (length 0.90–0.94 (♂), 1.02 (♀) mm); coxae II with 9–11 terminally indented coxal spines on each side.................................................................... <i>L. latipectus</i> <b>sp. nov.</b></p> <p>15 Two corneate eyes, posterior pair of eyes reduced to eyespots; tergites Ⅰ and II each with four setae................... 16</p> <p> - Four corneate eyes, posterior pair of eyes well developed; tergites Ⅰ and II each with two setae................................................................................................... <i>L. medog</i> Zhang & Zhang, 2014</p> <p>16 Carapace without epistome or with extremely indistinct epistome.............................................. 17</p> <p> - Carapace with a distinct triangular epistome........................................... <i>L. niger</i> Hu & Zhang, 2012</p> <p>17 At least one finger of chela with intercalary teeth........................................................... 18</p> <p>- Both chelal fingers without intercalary teeth............................................................... 19</p> <p> 18 Only fixed chelal finger with intercalary teeth........................................ <i>L. harveyi</i> Hu & Zhang, 2014</p> <p> - Both chelal fingers with intercalary teeth.............................................. <i>L. tonkinensis</i> (Beier, 1951)</p> <p>19 Movable chelal finger more than 1.20 (♂, ♀) times longer than hand; proximal half of movable finger with rounded vestigial teeth.............................................................................................. 20</p> <p> - Movable chelal finger 1.03 (♂) times, 0.97–1.00 (♀) times longer than hand; proximal half of movable chelal finger without vestigial teeth........................................................ <i>L. brachydigitatus</i> Zhang & Zhang, 2014</p> <p> 20 Chelal hand 2.50–2.87 (♂) times, 2.39–2.75 (♀) as long as broad; trichobothrium <i>sb</i> of movable chelal finger two times as far from <i>st</i> as from <i>b</i>; tergites Ⅰ–VII with four setae................................... <i>L. leptopalpus</i> Hu & Zhang, 2012</p> <p> - Chelal hand 2.00 (♂) times as long as broad; trichobothrium <i>sb</i> of movable chelal finger 1.5 times as far from <i>st</i> as from <i>b</i>; only the tergites Ⅰ–II with four setae......................................................... <i>L. sinensis</i> (Beier, 1967)</p> <p>21 Tergites Ⅰ–II each with two setae........................................................................ 22</p> <p>- Tergites Ⅰ–II each with three or four setae................................................................. 25</p> <p>22 Carapace with a round and obtuse epistome; body length max. 1.83 mm, chelal length max. 1.11 mm.................. 23</p> <p>- Carapace with a distinct triangular epistome; body length min. 1.85 mm, chelal length min. 1.51 mm.................. 24</p> <p> 23 Palpal femur 6.45–6.80 (♀) times as long as broad; chelal finger 1.48–1.50 (♀) times longer than hand; tergite Ⅴ with 5–6 setae; anterior genital operculum with 12 setae; trichobothrium <i>ist</i> situated distal to <i>st</i>................... <i>L. tuoluoensis</i> <b>sp. nov.</b></p> <p> - Palpal femur 5.43–5.75 (♀) times as long as broad; chelal finger 1.55–1.56 (♀) times longer than hand; tergite Ⅴ with four setae; anterior genital operculum with ten setae; trichobothrium <i>ist</i> situated proximal <i>st</i>.............. <i>L. maanensis</i> <b>sp. nov</b> <b>.</b></p> <p> 24 Tergite Ⅹ with two setae; body length min. 2.00 (♂), 2.17 (♀) mm, chelal length min. 1.79 (♂), 1.84 (♀) mm, palpal femur min. 1.25 (♂), 1.30 (♀) mm; coxae II with 13–15 terminally indented coxal spines on each side........... <i>L. nigriculus</i> <b>sp. nov.</b></p> <p> - Tergite Ⅹ with four setae; body length max. 1.78 (♂), 2.05 (♀) mm, chelal length max. 1.62 (♂), 1.66 (♀) mm, palpal femur max. 1.11 (♂), 1.17 (♀) mm; coxae II with nine terminally indented coxal spines on each side.......................................................................................... <i>L. laoxueyanensis</i> Hou, Gao & Zhang, 2022</p> <p>25 Carapace with a distinct triangular epistome............................................................... 26</p> <p>- Carapace with a round and obtuse epistome...........................
Camptodontus yangi Li, Gong, Zhang, Yang, and Hou 2010
No full textAlthough <p> the nomenclature of the longipterygid bird <i>Camptodontus yangi</i> Li, Gong, Zhang, Yang, and Hou, 2010 may have been clouded by the finding that its generic name was preoccupied by <i>Camptodontus</i> Dejean, 1826 in the carabid beetles, necessitating its replacement by <i>Camptodontornis</i> Demirjian, 2019, the taxonomic status of this species has become even more debatable.</p> <p> Martyniuk (2012) firstly considered the taxon as possibly synonymous with <i>Boluochia zhengi</i> Zhou, 1995, based on similarities on snout and tooth morphology.</p> <p> Wang <i>et al.</i> (2014) subsequently noted that the diagnostic features of <i>yangi</i> (e.g. carina restricted to caudal part of sternum, cranial cervicals heterocoelous, ulna longer than humerus) were actually widespread among enantiornithine birds, and that other morphological features (large teeth strongly curved caudally, lateral trabecula of sternum slightly laterally directed with simple distal expansion) closely matched the condition of <i>Longipteryx</i> Zhang, Zhou, Hou and Gu, 2000. Based on these shared features and absence of any autapomorphies or unique character combination, Wang <i>et al.</i> (2014) referred the holotype of <i>yangi</i> (SG2005-B1; Shenyang Institute of Geology and Mineral Resources, Shenyang, China) to <i>Longipteryx</i>. Wang <i>et al.</i> (2015) then investigated this issue further, pointing out that the incomplete and disarticulated nature of the type specimen and lack of any detail concerning dentition in the protologue. Moreover, at least one referred specimen of <i>Longipteryx chaoyangensis</i> Zhang, Zhou, Hou and Gu, 2000 (DNHM-D 2889; Dalian Natural History Museum, Dalian, China) showed tooth morphology (presence of longitudinal groove in the anterolateral facet of each premaxillary tooth) identical to that in the holotype of “ <i>Camptodontus yangi</i> ”; and the holotype of <i>Longipteryx chaoyangensis</i> (IVPP V 12325; Institute of Vertebrate Paleontology and Paleoanthropology, Beijing, China) was found to bear a similar feature in teeth as well. Therefore, Wang <i>et al.</i> (2015) treated <i>yangi</i> as the junior synonym of <i>Longipteryx chaoyangensis</i>.</p> <p> In summary, <i>Camptodontornis yangi</i> not only has no diagnostic features of its own but is also probably referable to a previously named longipterygid bird, <i>Longipteryx chaoyangensis</i>. Furthermore, the holotype of <i>Boluochia zhengi</i> (IVPP V9770) is very similar to specimens referred to <i>Longipteryx chaoyangensis</i>, and the only obvious difference is lateral deflection of the distal end of metatarsal IV (O’Connor <i>et al.</i>, 2010). Such a difference is minor, and possibly due to individual or ontogenetic variation, or sexual dimorphism. If the two taxa are synonymous, <i>Boluochia zhengi</i> has priority as it was named five years prior to <i>Longipteryx chaoyangensis</i>. In such circumstances, <i>Camptodontornis</i> Demirjian, 2019 and <i>Longipteryx</i> Zhang, Zhou, Hou and Gu, 2000 are generic synonyms of <i>Boluochia</i> Zhou, 1995; and <i>yangi</i> Li, Gong, Zhang, Yang, and Hou, 2010 and <i>chaoyangensis</i> Zhang, Zhou, Hou and Gu, 2000 are specific synonyms of <i>zhengi</i> Zhou, 1995.</p>Published as part of <i>Yun, Chan-Gyu, 2019, Comments on the taxonomic validity of Camptodontornis yangi (Li, Gong, Zhang Yang, and Hou, 2010) and its relationships to Longipteryx chaoyangensis Zhang Zhou, Hou, and Gu, 2000 and Boluochia zhengi Zhou, 1995, pp. 391-392 in Zootaxa 4652 (2)</i> on page 391, DOI: 10.11646/zootaxa.4652.2.12, <a href="http://zenodo.org/record/3998462">http://zenodo.org/record/3998462</a>
Platorchestia bousfieldi Hou & Li 2003, n. sp.
No full text<i>Platorchestia bousfieldi</i> n. sp. <p>(figures 5–8)</p> <p> <i>Material examined.</i> One female (holotype), one female and one juvenile (paratypes). Collection label not seen. Blind terrestrial talitrids are rare, especially in China, where this phenomenon has been found for the first time. Description of this taxon may be important for the phylogeny of landhoppers.</p> <p> <i>Etymology.</i> The species name is in honour of Dr E. L. Bousfield, who kindly gave us much help when we were in a difficult period during the present research.</p> <p> <i>Description.</i> Female ( , IZCAS-I-A0015), body length 7.5 mm. Head subrectangular, inferior antennal sinus distinct. Eyes lacking. Antenna 1: peduncle segments subequal, with distal spines, flagellum four-articulate with some spines. Antenna 2: peduncular article 4 about 71% of length of article 5, thicker than article 5, both with marginal spines; flagellum 1.67 times as long as peduncular article 5, nine-articulate, armed with fine marginal spines.</p> <p>Upper lip convex, with minute setae apically. Left mandible: incisor five-dentate, lacinia mobilis with five weak teeth. Right mandible: incisor five-dentate, lacinia mobilis bifurcate, ridge of each cusp minutely serrate. Lower lip: inner shoulder and margin of central trough pilose. Maxilla 1: inner plate with two apical spinulate setae, outer plate with nine saw-like spines on distal margin, palp minute. Maxilla 2: inner plate with one large seta on outer distal angle, outer plate with several long setae near outer distal angle. Maxilliped: inner plate with three distal spines, article 4 of palp distinct.</p> <p>Gnathopod 1: coxal plate smoothly rounded anterodistally, low margin with three spines and some setae; basis with two spines on posterior margin; ischium with a marginal and two distal spines; merus without tumescent hump, posterior margin spinose; carpus and propodus lacking tumescent hump, propodus about 0.67 times as long as carpus, palm truncate, with a spine and two setae at posterior angle; dactylus longer than palm of propodus, with one stiff setae on concave margin. Gnathopod 2: coxal plate with cuspidate posterior margin; basis expanded anteriorly, anterior margin with seven small spines evenly; merus with spines on posterior margin and lateral surface; carpus and propodus tumescent posteriorly, propodus shorter than carpus, with spines-row on lateral surface; dactylus hooked distally, grasping margin with a row of four setae.</p> <p>Pereopods 3 and 4: coxal plates wider than deep, ventral margin straight, with short setae, posterior margin cuspidate; bases almost parallel-sided; carpus short, posterior margins of merus to propodus with denser spines than anterior margins; dactylus with a spine at hinge of nail. Pereopod 3 longer than pereopod 4, carpus of pereopod 4 shorter than that of pereopod 3.</p> <p>Pereopod 5: anterior lobe of coxal plate larger than posterior one, posterior margin with four fine setae; posterior margin of basis expanded roundly, armed with several short setae, anterior margin with spines; dactylus cuspidactylate, with a spine near hinge of nail. Pereopod 6 much longer than pereopod 5, coxal plate posterolobate; basis ovate, posterior margin with some spinules; merus to propodus with groups of spines along anterior and posterior margins. Pereopod 7: coxal plate shallow, non-lobate, ventral margin weakly convex; basis expanded posteriorly.</p> <p>Coxal gills of pereopods 2–6 present.</p> <p>Oostegites of pereopods 2–4 parallel-sided and elongate, oostegite 5 shortest and widened in the middle. All without marginal setae.</p> <p>Epimeral plates 1–3 with slightly pointed posterior angles, ventral margin unarmed, posterior margin with one to three setae. Pleopods 1–3 similar, peduncles with two retinaculae, peduncles of pleopods 1 and 2 marginally bare, peduncle of pleopod 3 with a few setae on outer margin; both rami with about 10 particles, fringed with long plumose setae.</p> <p>Uropod 1: peduncle longer than rami, with five spines on outer margin, three spines on inner margin; outer ramus a little shorter than inner ramus, marginally bare; inner ramus with three spines on outer margin; both rami with distal spines. Uropod 2: peduncle with three spines on both margins, outer ramus with one midmarginal and two distal spines, inner ramus with three outer marginal and three distal spines. Uropod 3: peduncle longer than deep, with three distal spines; ramus about 0.6 times as long as peduncle, with one subdistal and two distal spines.</p> <p>Telson apically notched, longer than wide, bearing one or two spines on dorsal surface and three distal spines.</p> <p>Male unknown.</p> <p> <i>Remarks.</i> The new species is similar to <i>Platorchestia japonica</i> in the parallelsided propodus of gnathopod 1, the tumescent carpus and propodus of gnathopod 2, and pereopod 5 smaller than pereopods 6 and 7. It differs from <i>Platorchestia japonica</i> in the absence of eyes, the telson notched apically bearing two facial and three to four distal spines, and the oostegites bearing few marginal setae.</p> <p>Although there is no information on the habitats of the present blind species, it is very unusual. We are sure it is definitely terrestrial because it has narrow oostegites. The long and biramous pleopods of the present species are more like those of some of the Tasmanian cuspidactylate species, which are less terrestrially adapted than simplidactylate species (Friend, 1987).</p>Published as part of <i>Hou, Z. - E. & Li, S., 2003, Terrestrial talitrid amphipods (Crustacea: Amphipoda) from China and Vietnam: studies on the collection of IZCAS, pp. 2441-2460 in Journal of Natural History 37</i> on pages 2448-245
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