биота российских вод японского моря - Materials of Alexey Shipunov

6. Nymphon hodgsoni Schimkewitsch, 1913(Pl. V, figs. 1–6)Schimkewitsch, 1913: 244–248, figs. 15–25; 1930: 512–517, figs. 155a, 156a, 158, 160–166; Losina-Losinsky, 1933: 71; 1961: 63; Hedgpeth, 1949: 250–251, fig. 21; Turpaeva,2004b: 1234–1235, fig. 4.Description. Trunk robust, elongated, smooth; only distal margins of lateralprocesses armed with short setae. Lateral processes approximately 1.2–1.4 times aslong as broad, separated by not more than half their own diameters. Cephalic segmentlonger than another part of trunk; anterior part twice broader than neck, with smallprocesses of chelifores, palps and ovigers; neck short; oviger processes in contact withlateral processes of 1st legs. Ocular tubercle low, with rounded top, slightly bentbackwards; eyes large; posterior pair larger than anterior one. Proboscis straight,cylindrical, equal in length to cephalic segment. Abdomen straight, longer than fourthlateral processes, protruded obliquely upward. Chelifore slightly shorter than trunk;scape shorter than proboscis, expanded mid-distally; chela longer than scape; fingersbearing long teeth placed at angle to palm, gently curved, their thin tips cross; lengthof fingers as a whole equal to length of palm, but immovable finger much shorter thanmovable one. Palp rather thin; its segment 2 slightly longer than segment 3; ovalsegment 4 about 1.5 times as long as broad; segment 5 straight, lanceolate, 2.5 timeslonger than segment 4. Oviger more than twice longer than trunk; its segment 4 almoststraight, equal to segments 1 to 3 combined; in males segment 5 longest, expandeddistally and curved proximally; 4 distal segments subequal; claw twice shorter thanterminal segment, thin, with 9 long teeth on inner margin. Compound spines bear 3–4pairs of lateral teeth. Legs strong, 6 or more times longer than trunk; coxa 2 slightlyexpanded distally, equal in length to coxae 1 and 3 combined; femur longer than allcoxae combined; tibia 1 slightly longer than femur; tibia 2 one and half times longerthan tibia 1. Distal segments of legs noticeably thinner than other segments; tarsusslightly shorter than propodus; propodal sole provided with row of small spines andseveral larger spines on distal half. Main claw thin, curved, slightly shorter than halfof propodus; auxiliary claws 3.5 times shorter than main one. All appendages coveredwith setae, longest setae on legs. Measurements of male: trunk 8.55 mm; proboscis4.6 mm; chelifore 8.2 mm; palp 7.3 mm; oviger 19.3 mm; third leg 53.5 mm.Measurements of female: trunk 3.55 mm; proboscis 1.45 mm; chelifore 3.55 mm; palp2.8 mm; oviger 5.05 mm; third leg 15.25 mm.Geographical distribution. The species inhabits the Sea of Okhotsk, also foundin the Pacific Ocean near the Kuril Islands and in the northern part of the Sea of Japan(near the western coast of Sakhalin and Plastun Bight). It has not been recorded southof latitude 43°N.Vertical distribution. It occurs at depths from 42 to 1530 m.*Nymphon stocki Utinomi, 1956(Pl. VIII, figs. 1–5)Utinomi, 1955: 10–13, figs. 6, 7; 1971: 321.The species was found near the western coast of Japan, near Goto Island(Toyama Bay), at a depth of 324 m and north of Noto Island at a depth of 123 m.102