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FIGURE 8 in Astacilla boreaphilis sp. nov. (Crustacea: Isopoda: Valvifera) from shallow and deep North Atlantic waters
No full textFIGURE 8. Astacilla boreaphilis sp. nov., allotype ɗ, 7.0 mm (IMNH 2006.06.01.2). A, penial plate. B, pleopod 1. C, pleopod 2. D, pleopod 3. E, pleopod 4. F, pleopod 5. G, uropod. Scales: a = 0.2 mm, b = 0.5 mm.Published as part of Stransky, Bente & Svavarsson, Jörundur, 2006, Astacilla boreaphilis sp. nov. (Crustacea: Isopoda: Valvifera) from shallow and deep North Atlantic waters, pp. 1-23 in Zootaxa 1259 on page 14, DOI: 10.5281/zenodo.17313
Revision of Pleuroprion zur Strassen, 1903 (Holidoteidae) and re-evaluation of Spectrarcturus Schultz, 1981 (Arcturidae) (Crustacea, Isopoda, Valvifera)
No full textStransky, Bente, Svavarsson, Jörundur, Poore, Gary C.B., Kihara, Terue Cristina (2020): Revision of Pleuroprion zur Strassen, 1903 (Holidoteidae) and re-evaluation of Spectrarcturus Schultz, 1981 (Arcturidae) (Crustacea, Isopoda, Valvifera). Zootaxa 4894 (1): 1-52, DOI: https://doi.org/10.11646/zootaxa.4894.1.
Arcturidae Dana 1849
No full textFamily Arcturidae Dana, 1849 Arcturidae Dana, 1849: 359, 360.— Kensley, 1978: 16, 17 (part).— Kensley & Schotte, 1989: 252 (part).— Kussakin, 1982: 270–272 (part).— Poore, 2001: 222–223. Arcturinae.— Wägele, 1989: 138.— Wägele, 1991: 88 (part).Published as part of Stransky, Bente, Svavarsson, Jörundur, Poore, Gary C. B. & Kihara, Terue Cristina, 2020, Revision of Pleuroprion zur Strassen, 1903 (Holidoteidae) and re-evaluation of Spectrarcturus Schultz, 1981 (Arcturidae) (Crustacea, Isopoda, Valvifera), pp. 1-52 in Zootaxa 4894 (1) on page 14, DOI: 10.11646/zootaxa.4894.1.1, http://zenodo.org/record/431536
FIGURE 3 in Combining morphological and mitochondrial DNA data to describe a new species of Austroniscus Vanhöffen, 1914 (Isopoda, Janiroidea, Nannoniscidae) linking abyssal and hadal depths of the Puerto Rico Trench
No full textFIGURE 3. Bayesian phylogenetic tree of Austroniscus Vanĥffen, 1914 (Crustacea, Isopoda) lineages based on the mitochondrial ribosomal large subunit 16S, with molecular species delimitations shown as black bars.Published as part of Kaiser, Stefanie, Stransky, Bente, Jennings, Robert M., Kihara, Terue Cristina & Brix, Saskia, 2023, Combining morphological and mitochondrial DNA data to describe a new species of Austroniscus Vanhöffen, 1914 (Isopoda, Janiroidea, Nannoniscidae) linking abyssal and hadal depths of the Puerto Rico Trench, pp. 401-434 in Zootaxa 5293 (3) on page 413, DOI: 10.11646/zootaxa.5293.3.1, http://zenodo.org/record/796122
FIGURE 2 in Combining morphological and mitochondrial DNA data to describe a new species of Austroniscus Vanhöffen, 1914 (Isopoda, Janiroidea, Nannoniscidae) linking abyssal and hadal depths of the Puerto Rico Trench
No full textFIGURE 2. Bayesian phylogenetic tree of Austroniscus Vanĥffen, 1914 (Crustacea, Isopoda) lineages based on the cytochrome c oxidase subunit I gene (COI), with molecular species delimitations shown as black bars.Published as part of Kaiser, Stefanie, Stransky, Bente, Jennings, Robert M., Kihara, Terue Cristina & Brix, Saskia, 2023, Combining morphological and mitochondrial DNA data to describe a new species of Austroniscus Vanhöffen, 1914 (Isopoda, Janiroidea, Nannoniscidae) linking abyssal and hadal depths of the Puerto Rico Trench, pp. 401-434 in Zootaxa 5293 (3) on page 412, DOI: 10.11646/zootaxa.5293.3.1, http://zenodo.org/record/796122
Spectrarcturus toporoki Stransky & Svavarsson & Poore & Kihara 2020, comb. nov.
No full textSpectrarcturus toporoki (Kussakin, 1972) comb. nov. (Fig. 33) Pleuroprion toporoki Kussakin, 1972: 186–189, figs 5–6. — Kussakin, 1982: 432–435, figs 321–322. Material examined: Paratype female, ZIN RAS cat. no. 2/49344, Kobjakova R / V “Toporok”, station 46, 6 September 1948, South Kurile Islands, Ituruo Island. Diagnosis: Body with numerous large and small, robust, bluntly pointed spines; pereonite 4 0.18 times body length; evenly wide, sligthly longer than second and third together; pleotelson short, with several short spines, posterior margin rounded. All pleonites fused into pleotelson, only one pleonite visible. Antennula short, reaching little beyond distal end of second peduncular segment of antenna. Antenna considerably shorter than body; short, robust. Spines on basis of pereopods 5 to 7. Oostegites present on pereopod 5, as small lobes. Male penis lanceolate, tapering evenly towards rounded distal end; appendix masculina long, distally curved, extending one-third of length beyond exopod. Distribution: Kurile Islands, at depths between 5 and 60 m (Kussakin 1972, 1982).Published as part of Stransky, Bente, Svavarsson, Jörundur, Poore, Gary C. B. & Kihara, Terue Cristina, 2020, Revision of Pleuroprion zur Strassen, 1903 (Holidoteidae) and re-evaluation of Spectrarcturus Schultz, 1981 (Arcturidae) (Crustacea, Isopoda, Valvifera), pp. 1-52 in Zootaxa 4894 (1) on page 45, DOI: 10.11646/zootaxa.4894.1.1, http://zenodo.org/record/431536
Spectrarcturus Schultz 1981
No full textKey to species of Spectrarcturus (females) 1a Posterior end of pleotelson bifid.......................................................................... 2 1b Posterior end of pleotelson rounded, pointed or truncated...................................................... 4 2a Distolateral spine on article 3 of antenna about as long as article width.......................... S. hystrix (Sars, 1877) 2b Distolateral spine on article 3 of antenna short, much shorter than article width.................................... 3 3a Pleotelson with tubercles on most dorsal surface....................................... S. murdochi (Benedict, 1898) 3b Pleotelson only with long spines on anterior part.................................. S. intermedius (Richardson, 1899) 4a Pleotelson bluntly truncated, slightly convex apically............................... S. chlebovitschi (Kussakin, 1972) 4b Pleotelson rounded or pointed apically.................................................................... 5 5a Pleotelson widely rounded apically; body without dense setae.................................................. 6 5b Pleotelson pointed apically; body densely setose............................................................. 7 6a Body with numerous short, rounded tubercles............................... S. iturupicus (Kussakin & Mezhov, 1979) 6b Body with several long, slender spines on each pereonite................................ S. toporoki (Kussakin, 1972) 7a Pleotelson distally narrowly pointed; pereonite 4 twice as long as pereonite 3.............. S. fabulosus (Gurjanova, 1955) 7b Pleotelson distally narrow, tounge-like; pereonite 4 1.7 times as long as pereonite 3........... S. furcatus (Kussakin, 1982)Published as part of Stransky, Bente, Svavarsson, Jörundur, Poore, Gary C. B. & Kihara, Terue Cristina, 2020, Revision of Pleuroprion zur Strassen, 1903 (Holidoteidae) and re-evaluation of Spectrarcturus Schultz, 1981 (Arcturidae) (Crustacea, Isopoda, Valvifera), pp. 1-52 in Zootaxa 4894 (1) on page 15, DOI: 10.11646/zootaxa.4894.1.1, http://zenodo.org/record/431536
Astacilla Cordiner 1793
No full textGenus Astacilla Cordiner, 1793 Astacilla Cordiner, 1793.— King, 2003: 359–361.— Kensley, Schotte and Poore, 2007: 436–437. Diagnosis (from King 2003): Body strongly geniculate between pereonites 4 and 5, cylindrical, with no dorsal ridge. Antenna slender or robust, with 2 or 3 flagellar articles, flagellum distally with claw. Maxillipedal palp with all segments free, palp article 3 similar width as article 2. Pereonite 4 elongate; pereonite 4 of male and female of similar length. Pereopod 1 setose, with unguis (rarely without). Pereopods 2–4 present and functional as setose appendages, dactylus absent. Pereopods 2–4 cylindrical, held close to mouthparts, able to extend past mouthparts, setae in rows, setae as long as segment, flexion between carpus and propodus present. Pereopods 5–7 with 2 ungues, secondary unguis robust. Female functional brood pouch majority made up of pereonite 4 (or 3 and 4). Oostegite 5 absent. Male penial plate narrow, apex simple. Male pleopod 1 with lateral notch, with 3 lateral setae, lateral setae of similar length. Male pleopod 2 with appendix masculina tapered, without ridge, distally not widened, straight, elongated. Uropodal exopod present, 3 setae on inner ramus.Published as part of Stransky, Bente, Svavarsson, Jörundur, Poore, Gary C. B. & Kihara, Terue Cristina, 2020, Revision of Pleuroprion zur Strassen, 1903 (Holidoteidae) and re-evaluation of Spectrarcturus Schultz, 1981 (Arcturidae) (Crustacea, Isopoda, Valvifera), pp. 1-52 in Zootaxa 4894 (1) on page 45, DOI: 10.11646/zootaxa.4894.1.1, http://zenodo.org/record/431536
Spectrarcturus fabulosus Stransky & Svavarsson & Poore & Kihara 2020, comb. nov.
No full textSpectrarcturus fabulosus (Gurjanova, 1955) comb. nov. (Fig. 27) Pleuroprion fabulosus Gurjanova, 1955: 225–228, figs 13–14. Pleuroprion fabulosum.— Kussakin & Mezhov, 1979: 149.— Kussakin, 1982: 440–444, figs 327–329.— Kussakin & Vasina, 1990: 50–51, figs 3–4. Material examined: Paratype female, ZIN RAS cat. no. 3/22841, Kobjakova R / V “Toporok“, station 101, 14 September 1949, South Kurile Islands. Diagnosis: Body densely setose, with many slender, pointed spines, pair on each pereonite near midline of body, two pairs on pereonite 4; dorsolaterally single large spine and laterally additional spine on anterior pereonites; pereonite 4 0.2 times body length; trapezoid, 2 times longer than third pereonite. Pleotelson long, with few long spines anteriorly, lateral margins with spines, posterior part of pleotelson tapering towards apex. Antennula somewhat long, reaching about one third of length of third peduncular segment of antenna. Antenna long, slender, about 0.9 of total body length; pronounced spine mid-dorsally on second segment, spine distolaterally on fourth segment. Spines present on basis of pereopods 5–7. Oostegites present on pereopods 1–5, very small oostegite lobe on pereopod 5. Remarks: This species can be distinguished from the other species of Spectrarcturus on the dense setae of the body (also known in S. furcatus), the relatively long antennula and the narrowly pointed pleotelson, having only dorsal spines on the anterior most part of the pleotelson. The male is unknown. Distribution: Sea of Okhotsk, 385–414 m (Kussakin 1982; Kussakin & Vasina 1990).Published as part of Stransky, Bente, Svavarsson, Jörundur, Poore, Gary C. B. & Kihara, Terue Cristina, 2020, Revision of Pleuroprion zur Strassen, 1903 (Holidoteidae) and re-evaluation of Spectrarcturus Schultz, 1981 (Arcturidae) (Crustacea, Isopoda, Valvifera), pp. 1-52 in Zootaxa 4894 (1) on page 37, DOI: 10.11646/zootaxa.4894.1.1, http://zenodo.org/record/431536
Spectrarcturus iturupicus Stransky & Svavarsson & Poore & Kihara 2020, comb. nov.
No full textSpectrarcturus iturupicus (Kussakin & Mezhov, 1979) comb. nov. (Fig. 32) Pleuroprion iturupicum Kussakin & Mezhov, 1979: 145–148, figs 3–4. — Kussakin, 1982: 435–437, figs 323–324. Material examined: Paratype female, ZIN RAS cat. no. 3/49358, station 44, South Kurile Islands, Iturup Island. Diagnosis: Body with numerous small tubercles; mid-dorsally pair of somewhat longer, robust spines; pereonite 4 0.18 times body length; posteriorly narrow, twice as long as second and third together. Pleotelson short, with numerous small tubercles and pairs of short spines, posterior margin rounded, large lateral spine near ventral margin. Antennula short, reaching little beyond distal end of second peduncular segment of antenna. Antenna short and robust, about 0.6 of total body length. Spines on basis of pereopods 5 to 7. Oostegites present on pereopod 5, as small lobes. Remarks: Detailed examination of the mouthparts, the pleopods and the uropods was not possible. Kussakin & Mezhov (1979) provided only illustrations of the lateral view of the habitus, first antenna, maxilliped and pereopods 1, 2 and 7. The same illustrations were provided by Kussakin (1982). From Kussakin & Mezhov (1979) and our observations it is clear that the species fits well into Spectrarcturus. The species can be distinguished from other species of Spectrarcturus on the body shape, the numerous small tubercles on the body and the shape of the pleotelson. The male is not known. Distribution: Kurile Islands, at depth between 125–146 m (Kussakin & Mezhov 1979).Published as part of Stransky, Bente, Svavarsson, Jörundur, Poore, Gary C. B. & Kihara, Terue Cristina, 2020, Revision of Pleuroprion zur Strassen, 1903 (Holidoteidae) and re-evaluation of Spectrarcturus Schultz, 1981 (Arcturidae) (Crustacea, Isopoda, Valvifera), pp. 1-52 in Zootaxa 4894 (1) on pages 42-45, DOI: 10.11646/zootaxa.4894.1.1, http://zenodo.org/record/431536
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