76 



Pereopods I have a slightly broadened 2nd segment; the 5th seg- 

 ment is large, highly broadened distally, and its maximum width equals 

 its length; the base of the 6th segment occupies only about half the distal 

 margin of the 5th segment; the 6th segment is narrow, conical; the claw 

 is straight. Pereopods II are much longer (about 1.5 times) than pere- 

 opods I; the long, distally weakly broadened 5th segment is less than 

 twice longer than the narrowly conical 6th segment; the claw is straight. 

 Pereopods III and IV are almost similar in length and identical in struc- 

 ture; their 2nd segment is shorter than the 4th and 5th together; the 4th 

 segment is somewhat longer than the 5th, which in turn may be shorter 

 than, equal to,or longer than the distally narrowed 6th segment; the claws 

 are thin, almost straight. Pereopods V are longer than IV and exceed the 

 pereon in length; their 2nd segment is much shorter than the 4th and 5th 

 together; the 4tn segment is longer than the rod-shaped 5th and the latter 

 longer than the thin 6th segment. Pereopods VI are longer and stouter 

 than V; their 2nd segment is roughly equal to the 4th, which in turn 

 is somewhat longer than or equal to the 5th but shorter than the thin, 

 slightly curved 6th segment. Pereopods VII are roughly half as long as 

 V; their 4th segment is nearly half the 2nd but somewhat longer than the 

 5th; the thin 6th segment is 1.5 times longer than the 5th. The retractile 

 claws of pereopods V-VII are thin and curved. 

 66 The uropods have narrowly lanceolate rami. The narrowly triangular 



acute telson reaches or nearly reaches the distal end of the basipodite of 

 uropods in. 



Distribution: Atlantic Ocean from 64° N to 52° S, but found more 

 rarely in tropical regions than in the boreal. In the Pacific Ocean this 

 species is common in the northern boreal regions, in the Sea of Okhotsk, 

 and the Bering Sea; it is never found in the tropics. The southernmost 

 catches in the Pacific Ocean are: 38°36' N, 142°55' E and 33° 11' N, 

 143°56' E. It is rarely found in the tropical (north of the equator) regions 

 of the Indian Ocean. It inhabits a wide range of depths, from 300-400 m 

 (in the tropical region — 1,000 m) to 2,000 m but is more commonly 

 found at depths of 750-1,500 m. 



8. Lanceola laticarpa Vinogradov, 1957 (Fig. 15) 



Vinogradov, 1957: 192, 1960a: 206. 



Length of males 20-21 mm, females 16-20 mm. 



The color of unfixed specimens is pinkish; the integument is fairly 

 dense. The body is smooth, narrow, with a slightly broadened pereon. 

 The dorsal surface of the pereon and pleon somites is sculptured; a deep 

 depression occurs in the anterior part of somite I of the pleon. A rostrum 

 is absent. The eyes are small, situated on the sides of the head, in its 

 lower part, and hence not visible from above. 



