биота российских вод японского моря - Materials of Alexey Shipunov

*Nymphon japonicum Ortmann, 1891(Pl. VI, figs. 1–8)Ortmann, 1891: 158–159, pl. 24, fig. 1; Hedgpeth, 1949: 249, fig. 20; Hong & Kim,1987: 158–160, fig. 16; Nakamura, 1987: 5–6, fig. 3.Description. Trunk elongated, segmented; lateral processes 1.5 times longer thantheir diameters, separated by almost as long as their lengths. Neck 3 times as long asbroad, anterior part of segment 1 only twice broader than neck width. Ovigerimplantations in contact with 1st lateral processes. Ocular tubercle low, with roundedtop, situated near neck base; eyes pigmented. Proboscis cylindrical, 1.5 times shorterthan cephalic segment. Abdomen straight, reaches beyond distal margins of 4th lateralprocesses, protrudes obliquely upward. Chelifore strong; scape cylindrical, longer thanproboscis, evenly armed with sparse setae and row of setae on distal margin; chelashorter than scape; fingers longer than palm, almost straight, with curved tips. Largespecimens have 30 large teeth on immovable finger and 35 smaller teeth on movableone. In juveniles immovable finger armed with 19–32, movable finger, with 27–40teeth. Palp thin; segment 2 longest; segment 3 longer than segment 5; segment 5greatly longer than segment 4. Oviger: 5th segment longest, 1.5 times longer than 4thone; both segments armed with short setae; segment 6 three times shorter thansegment 5, evenly covered with setae; compound spines bear 3 pairs of lateral teeth;terminal claw only slightly shorter than terminal segment, armed with 7 teeth on innermargin. Legs long; 2nd coxa longer than 1st and 3rd combined; femur shorter thantibia 1, whereas tibia 1 noticeably (almost 1.5 times) shorter than tibia 2; tarsus andpropodus subequal; large spines sparsely distributed over propodal sole. Main clawless than half of propodus; auxiliary claws longer than half of main one.Geographical distribution. N. japonicum is distributed along the eastern andwestern coasts of Japan, in the western part of the Tsugaru Strait, off the south-easterncoast of the Korea Peninsula and in the Korea Strait. Distribution pattern of N.japonicum suggests that the species penetrates as far as the north-eastern part of theSea of Japan.Vertical distribution. It occurs at depths of 30–439 m.*Nymphon micropedes Hedgpeth, 1949(Pl. VII, figs. 1–5)Hedgpeth, 1949: 254–256, fig. 24.N. micropedes is known from the Pacific shelf of the northern part of HonshuIsland, from Suruga Bay to the Tsugaru Strait. The known bathymetric range is 85–923 m.*Nymphon kodanii Hedgpeth, 1949(Pl. VII, figs. 6–10)Hedgpeth, 1949: 252–254, fig. 23; Turpaeva, 2004b: 1230–1231, figs. 1, 9–12.N. kodanii is distributed near the western coasts of Honshu and Kyushu islands(south of 40°N) and in the eastern part of the Sea of Japan at depths from 140 to 1200 m.101