Pseudocrangonyx kseniae Sidorov, 2012
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publication ID |
https://doi.org/ 10.11646/zootaxa.3693.4.8 |
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publication LSID |
lsid:zoobank.org:pub:A6973F27-B9FA-4C3E-A2C3-BB4C1BBCE1E0 |
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DOI |
https://doi.org/10.5281/zenodo.5657801 |
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persistent identifier |
https://treatment.plazi.org/id/F21A8787-FF9C-F70C-E6A6-FBC8FB304DD1 |
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treatment provided by |
Plazi |
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scientific name |
Pseudocrangonyx kseniae Sidorov, 2012 |
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Pseudocrangonyx kseniae Sidorov, 2012 View in CoL
( Figs 3 View FIGURE 3 D, 64–69)
syn.: Pseudocrangonyx kseniae Sidorov, 2012 , p. 30, figs 1–5, (orig. descrip.).
Diagnosis (refined, cf. Sidorov, 2012, p. 31). Small-sized species with marked secondary sexual dimorphism. Dorsal surface of body segments smooth ( Fig. 3 View FIGURE 3 D), teretial, bearing detached fine setae. Eyes absent. Body unpigmented. Interantennal lobe of the head tapered; inferior antennal sinus distinct. Antenna 1 about 50% length of body. Palp mandible article 3 with 2 B-seta, 15 D-setae and 3 E-setae. Ventral surface of pereonites 2–7 with sternal humps (blisters). Pereopod 6 as long as pereopod 7. Urosome without “ecdysial setae”. Uropod 1 with 1 basofacial seta. Inner rami of male uropods 1–2 with serrate setae. Telson entire. Body length 4.2–5.7 mm (females), 4.2 mm (male).
Material examined. Male (4.2 mm, fragment without head part), X38653 View Materials /Cr-1469-FEFU, Russia, Primory Territory, Lasovsky District, ~ 3 km E of Laso, Kievka River (43°22.160' N 133°55.485' E), 217 m above sea level, subterranean waters (hyporea), 3 Aug 2009, coll. D.A. Sidorov & K.A. Semenchenko.
Description. Male (4.2 mm, fragment), X38653 View Materials /Cr-1469-FEFU, sexually dimorphic characters. Pereon. Coxal plates 1–4 ( Figs 64, 65 View FIGURES 64 – 69 ) shallow, sub-rectangular but plate 2 somewhat roundish. Gnathopod 1 ( Fig. 64 View FIGURES 64 – 69 ), carpus 0.5× as long as propodus, rastellate setae absent; propodus palm sub-transverse, defining angle distinct, palm with cutting margin crenulated, palm with 4 distally notched robust setae in two rows and 8 distally notched robust setae near defining angle. Gnathopod 2 ( Fig. 65 View FIGURES 64 – 69 ), carpus 0.8× as long as propodus, rastellate setae absent; propodus palm sub-transverse, defining angle distinct, palm with cutting margin crenulated, palm with 5 distally notched robust setae in 2 rows and 4 distally notched robust setae near defining angle. Pereopods 3 and 4 with a row of long and short setae on posterior margin; carpus as long as propodus. Pleon. Uropod 1 ( Fig. 66 View FIGURES 64 – 69 ): outer ramus armed with 1 robust seta; inner ramus with 1 serrate seta on apex. Uropod 2 ( Fig. 67 View FIGURES 64 – 69 ): articles armed with knife-like strong setae; outer ramus armed with 1 robust seta; both rami bearing serrate setae sub-apically and apically. Uropod 3 ( Fig. 68 View FIGURES 64 – 69 ): proximal article of outer ramus 2.3× as long as peduncle, bearing 2 sets of setae on lateral margin. Telson ( Fig. 69 View FIGURES 64 – 69 ): 1.8× as long as uropod 3 peduncle; 0.3× longer than broad.
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.