биота российских вод японского моря - Materials of Alexey Shipunov

2(1). Lateral processes and coxae 1 of legs bear several conical, truncated tubercles,larger ones of which have 2–4 tops; lateral processes separated by narrowintervals; chelifore slightly shorter than proboscis ................ *D. dogieli (p. 120)*Decachela discata Hilton, 1939(Pl. XVIII, figs. 1, 2)Hilton, 1939: 34; Hedgpeth, 1949: 280, fig. 37.Type specimen of this species was found off the Californian coast. Hedgpeth(1949) identified it in the samples collected during the R/V Albatross’ voyage in 1906near the western shore of Hokkaido Island at a depth of 100 m.*Decachela dogieli Losina-Losinsky, 1961(Pl. XVIII, figs. 3–6)Losina-Losinsky, 1961: 88–90, fig. 16; Hong & Kim, 1987: 155–158, figs. 13, 14.Description. Trunk of males disk-shaped, with firm opaque integument,unsegmented. Frontal margin of cephalic segment expanded and bears irregularshapedtubercles without spines. Ocular tubercle low with unpigmented eyes androunded top, situated medially on anterior part of cephalic segment. Proboscis short, 3times shorter than trunk, broad, cylindrical; cephalic segment projections overhangbase of proboscis. Abdomen more than twice longer than proboscis, cylindrical,reaching beyond distal ends of coxae 2 of 4th legs. Lateral processes broad, placedalmost closely together; each provided with several small tubercles in middle and 3tubercles, some of which with two tops, on distal margin. Chelifore shorter thanproboscis; scape robust, bear several tubercles distally; chela vestigial, withoutfingers. Oviger 10-segmented; segment 1 oval, broader than its own length; segment 3longest; segments 4 and 5 equal; segments 7 and 8 short and broad; 2 distal segmentsvery small, thin, cylindrical. Legs short, with robust, very short segments; coxa 1 bearsseveral large tubercles, of which one has several tops; coxa 2 ventrally bears talltubercle with genital pore and, dorsally, several small tubercles with spines; femur hasone tall tubercle dorsally and several small ones laterally; tarsus so small that can beseen only from ventral side; propodus slightly shorter than tibia 2; distal end of solearmed with large spine, forming kind of chela in combination with terminal claw; solealso bears small spine in front of large one. Main claw robust, curved, as long as 1/2 ofpropodus. Measurements of male: trunk 2.0 mm, proboscis 0.63 mm, abdomen4.12 mm.Females of D. dogieli differ from males in absence of large tubercles on lateralprocesses and shorter ovigers, distal segments of which armed with only severalsmooth setae.Geographical distribution. First specimens of D. dogieli were found on thestarfish Pteraster, taken in the Sea of Okhotsk off the northern tip of Sakhalin Islandat a depth of 84 m. Later Hong and Kim (1987) found D. dogieli in the Sea of Japanoff the Korean coast in the ambulacra of Pteraster.120