233 



large spine is situated on the inner margin opposite the place of attachment 

 of the exopodite. The telson is very small, its length equal to its width. 



Distribution: Known from two records from the Atlantic Ocean 

 (33°14'N, 19°38'W and 34°02' N, 12°21' W) and a few records 

 from the northwestern part of the Pacific Ocean (between 43° 43' and 

 46° 1 1' N and 149°39' and 155°55' E). In the Pacific Ocean it is found in 

 catches from depths of 2,200-5,250 m, about 2,400 and 3,000-4,000 m, 

 and in the Atlantic Ocean in through catches from 0-1,500 and 

 0-4,000 m. 



194 



2. Spinoscina echinata (Vinogradov, 1964) (Fig. 98) 



Vinogradov, 1964: 140 (Ctenoscina). 



Length of sexually mature specimens 5-6 mm. 



This species is close to S. spinosa. The following differences were 

 noted: the lateral spines on the head and the dorsal denticles on the pereon 

 and pleon somites are longer than in S. spinosa. One spine occurs on each 

 side of the distal surface of pereon somites III-VI and pleon somites I-III. 



Fig. 98. Spinoscina echinata (Vinogradov), female (after Vinogradov, 1964). 



