578 



a rather deep notch in the proximal part of the anterior margin while 

 the distal margin is straight with a few low uniform denticles; the 6th 

 segment is distally narrow and slightly curved; the 2nd-6th segments 

 may be pubescent along the posterior margin with sparse short setae. 

 Pereopods II differ from pereopods I only in a somewhat longer 2nd 

 segment. The 2nd segment of pereopods V is twice longer than wide, 

 its anterior margin almost straight, and the posterior bulged; the 3rd-7th 

 segments are 1.5 times longer than the 2nd; the 4th segment is slightly 

 broadened distally; the 5th segment is linear, longer, and narrow; the 

 6th segment is barely curved and equal in length to the 5th; the claw 

 is thin, long, and almost straight. The basal segment of pereopods VI is 

 longer than in pereopods V, narrows distally, its anterior margin almost 

 straight and concave only in the proximal part, and the posterior margin 

 sharply bulged in the proximal part but straight in the distal; the distal 

 segments together are longer than half the 2nd segment; the 4th segment 

 is longer and straight, its anterior distal process 1/3 the length of the 5th 

 segment, which is shorter and narrower than the 4th; all these segments 

 are denticulate throughout the length of the anterior margin; the claw is 

 narrow and more than half the length of the 6th segment. Pereopods VII 

 have a full complement of segments; the 3rd-7th segments together are 

 longer than the 2nd; the claw is rudimentary. 

 466 The basipodite of uropods I is denticulate in the distal part of the 



anterior margin; the exopodite is longer than the basipodite but shorter 

 and narrower than the endopodite; the tip of the latter reaches the tip 

 of the telson. The basipodite of uropods 11 is very short, the rami are 

 long, and the exopodite is shorter and narrower than the endopodite. 

 Uropods III are somewhat longer than the telson; the basipodite is short; 

 the endopodite is longer than the exopodite and two-three times broader 

 than it. The tip of the telson is rounded. 



Distribution: Known from the Atlantic (Azores), Pacific, and Indian 

 (Zanzibar) oceans. It is found in total catches from 1,500 m to the 

 surface. 



Absent in our collections. 



2. Genus Schizoscelus Claus, 1879 



Claus, 1879b: 20; 1887: 43; Stebbing, 1888: 1504; Bowman and Gruner, 

 1973: 58. 



Pereopods I are simple; pereopods II have long, narrow chelae. The 

 2nd segment of pereopods V-VI is markedly broadened. Pereopods VI 

 are six-segmented; the 2nd segment has a very long "fissure"; the 3rd-6th 

 segments together are much shorter than the 2nd; the 4th segment has 

 an anterior distal process. Pereopods VII have a full complement of 

 segments. 



