216 



of the 3rd segment; the 4th and 5th segments are equal to each other, 

 the 6th segment roughly half their length, bent forward, and evidently 

 being bent may form a poorly developed subchela with the 5th segment. 

 Pereopods VI are the same length as pereopods V but are stronger; the 

 length ratios of the 2nd, 4th, 5th, and 6th segments are 17.5: 10:7.5:10; the 

 claw is the same length as in pereopods V but stronger. Pereopods VII 

 are slightly shorter than pereopods VI; the 4th and 5th segments are equal 

 to each other in length, the 6th segment is slightly longer; the claw is 

 short and strong. 



The uropods are long, very thin, and weakly armed; the basipodites 

 of all the uropods are significantly shorter than the endopodites (some- 

 times less than half their length); the exopodites of uropods I and II 

 are relatively well developed, only 2/5-1/3 the endopodites in length. In 

 uropods I the inner margin of the endopodite is denticulate, in uropods II 

 the posterior margin of the endopodite is finely pubescent, while in 

 uropods III the inner margin of the exopodite is very finely denticulate. 

 The telson is oblong, broadened in the distal part, and has a rounded tip. 



Distribution: One specimen was found in the Atlantic Ocean south 

 of the Canary Islands, one in the Antarctic waters of the Indian Ocean 

 (64° 25' S, 92°52' E ), and two in the northwestern part of the Pacific 

 Ocean in the Kuril-Kamchatka region. One specimen was found in a 

 catch from 2,500-3,000 m while others were found in total catches from 

 depths of several thousand meters to the surface. 



29. Scina chelata Vinogradov, 1970 (Fig. 90) 



Vmogradov, 1970: 394. 



Length of sexually mature female 1 1 mm. 



The body is without keels. The eyes are not noticeable. Antennae I 

 are strong and armed with small, marginal, forwardly bent denticles. 



The mouth cone is small. In maxillae I the outer lobes are distally 

 tapering and the inner lobes rounded in the distal part and stretched; 

 the palp is broad, almost rectangular, with denticles on the straightly 

 truncated distal margin, and several setae on the inner margin. The outer 

 lobes of the maxillipeds, as in all species of the latifrons group, are 

 broadly oval and short (ratio of length of lobe to width, 4:3); each lobe 

 has more than ten short setae on the inner and distal margins: the inner 

 lobes are well developed and reach half the length of the outer, with one 

 seta each on the angles of the concave distal margin. Pereopods I and II 

 are strong, as in the other species of the latifrons group. Pereopods I are 

 notably stronger than pereopods II. Pereopods I have a broad and slightly 

 curved 2nd segment; the 5th segment is very slightly shorter than the 

 2nd and 1 .5 times longer than the distally tapered 6th segment; the claw 

 is almost straight. The 5th segment of pereopods II is half as long as the 

 2nd and equal in length to the 6th segment. Pereopods III and IV are 



