биота российских вод японского моря - Materials of Alexey Shipunov

4. Nymphon longitarse longitarse Kroyer, 1844–1845(Pl. IV, figs. 1–5)Schimkewitsch, 1930: 434–451, figs. 118–120; Losina-Losinsky, 1935: 15, 30–31; 1961:65; Hedgpeth, 1949: 247–248; 1963: 1330–1331; Utinomi, 1971: 318–319 (Nymphonlongitarse).Description. Trunk thin, smooth; cephalic segment longer than three otherscombined, slightly expanded anteriorly; neck very long and thin; lateral processesrather long, divided by broad intervals. Proboscis cylindrical, almost 1.5 times shorterthan cephalic segment. Ocular tubercle cylindrical with conical rounded top; eyeslarge, pigmented. Abdomen short, straight. Chelifore thin; scape longer thanproboscis; chela slightly shorter than scape; fingers almost equal in length to palm,tips curved. Palp longer than proboscis; segments 2 and 3 equal; segment 4 slightlyshorter than segment 5; segment 5 lanceolate, only slightly shorter than segment 3.Male oviger more than 1/5 longer than trunk; segments 4 and 5 equal in length;compound spines small, lanceolate, denticulate, with one pair of lateral teeth. Legsvery thin and long, with short sparse setae; 2nd coxa almost equal in length to 1st and3rd coxae combined; femur in females slightly swollen; tibia 1 longer than femur andshorter than thin and very long tibia 2; tarsus almost twice longer than propodus;propodal sole with row of thin short spinules, usually 2–3 larger spines situatedmedially among them. Losina-Losinsky (1935) noticed, that such "large" spines oftenbarely different from others, or even specimen may have these spines on some legsand do not have them on others. Main claw twice shorter than propodus, almoststraight, gently curved distally; auxiliary claws very small. Adult body length about7 mm, width about 60 mm.Geographical distribution. Nymphon longitarse longitarse is a widespreadcircumpolar boreal arctic subspecies. It is distributed in the Barents, White,Norwegian and Greenland seas, Baffin Bay and the Davis Strait, in the north-westernpart of the Atlantic Ocean near the eastern coast of the North America up to latitude40˚ N, also in the Bering Sea, Sea of Okhotsk, Sea of Japan (Peter the Great Bay, OlgaBay, the western coast of Sakhalin), and near the Kuril Islands. It mostly inhabits thesublittoral zone.*Nymphon longitarse elongatum Hilton, 1942(Pl. IV, figs. 12–15)Hilton, 1942a: 5; Hedgpeth, 1949: 251–252, fig. 22; Hong, Kim, 1987: 158, fig. 15(Nymphon elongatum).Description. This subspecies differs from nominative species in tall oculartubercle with conical top and lateral tubercles, in shorter fingers of chela, and longertarsus of leg (2.5 as long as propodus).Geographical distribution. N. longitarse elongatum occurs in the north-westernpart of the Pacific Ocean, in the eastern part of the Sea of Japan (Toyama Bay), nearthe north-western coast of the Korea Peninsula and in the East China Sea at depthsfrom 16 to 1600 m.99