411 



to somite V, somites VI-VII are slightly shorter. The pereopods dif- 

 fer slightly in length; pereopods V are the longest; pereopods I-II are 

 slightly shorter than pereopods III-IV, which in turn are the same length 

 as pereopods VI-VII. The 2nd segment of pereopods I is slightly longer 

 than the next three segments together and, like them, ornamented with 

 one-two rows of very fine denticles; the 3rd segment is equal in length 

 and width; the 4th segment is slightly longer and posteriorly does not 

 lean over the base of the 5th segment; the 5th segment is elongated, 

 slightly curved, and half the length of the 2nd segment; the 6th segment 

 is shorter and twice as narrow as the 5th; the claw is 1/4 the length of 



334 the 6th segment; grandular inclusions are particularly noticeable in the 

 long 2nd and 5th "segments. Pereopods II are slightly longer than pere- 

 opods I due to elongation of the distal segments. Pereopods III-IV have 

 similar proportions: the 2nd and 5th segments are the longest; the 5th 

 slightly longer than the 2nd and finely denticulate distally; the claws are 

 short. The 2nd segment of pereopods V-VII is slightly broader than in 

 the preceding pairs; the 2nd segment of pereopods V is longer than the 

 5th segment; the 6th segment is slightly longer than half the length of 

 the 5th; the claw is slightly curved and proximally broadened. The 5th 

 segment of pereopods VI-VII is shorter than the 2nd and only slightly 

 longer than the 6th. 



The basipodites of pleopods I and II are longer than the rami, In 

 pleopods III the same length as the rami. The basipodite of pleopods I 

 in males bears 8-12 copulatory hooks, in females five hooks; an increase 

 over the normal (l-i) number of copulatory hooks is accompanied by 

 a simplification of structure — each hook has only one pair of apical 

 denticles, the subapical denticles being absent. 



The basipodites of uropods I and III are broad, of uropods II much 

 narrower. The basipodite of uropods I is distally broadened, its length 

 2.5 times its width; the rami are lanceolate and more than half the length 

 of the basipodite. The basipodite of uropods II is slightly shorter and half 

 as broad as the basipodite of uropods I; the rami are narrowly lanceolate 

 and half the length of the basipodite. The basipodite of uropods III is 

 sharply broadened in the proximalmost part, thereafter its margins par- 

 allel, its length twice its width; the rami are lanceolate, in males broadly 



335 lanceolate, and 2/5-1/3 the length of the basipodite. The rami of all pairs 

 are equal in length with wide-set bases. The inner and distal margins of 

 the basipodites as well as the margins of the rami are finely denticulate. 



Distribution: Distribution in the Atlantic Ocean from 57° N up to 

 37° 33' S in the Mediterranean Sea. In the Pacific Ocean it was found at 

 14°52' S, 76°47' W (1 male). The species is rare; reports usually pertain 

 to isolated finds. 



