457 



longer than wide; the 5th segment is somewhat longer than wide; the 

 2nd-5th segments are pubescent as in pereopods I; the 6th segment is 

 longer than the 5th, smoothly narrowed in the distal part, the anterior 

 margin denticulate and also bears a few submarginal setae, and the pos- 

 terior margin smooth, without the projection seen in pereopods I; the 

 claw is long. The 6th segment of pereopods III and IV has a denticulate 

 posterior margin; the claw is somewhat shorter than the 6th segment. 

 The 2nd segment of pereopods V has a. bulged anterior margin, almost 

 straight posterior margin, and is almost twice longer than wide; the 6th 

 segment is slightly longer than the 5th but half as narrow; the 5th and 6th 

 segments have a finely denticulate anterior margin; the claws are long 

 and thin, more than half the length of the 6th segment. The 2nd seg- 

 ment of pereopods VI is markedly broadened, almost 1.5 times longer 

 than wide and the anterior margin barely, the posterior margin notably 

 bulged; the 4th, 5th, and 6th segments are approximately equal in length 

 but each successive segment is narrower than the one before; the 6th 

 370 segment terminates in a cusp, the anterior margin in the distal part often 

 densely pubescent, bearing fine hairs, and the posterior margin bears 

 short sparse setae; the claw is thin, almost straight, and less than half the 

 length of the 6th segment. Pepeopods VII have a markedly broadened 

 2nd segment and a very small clawlike distal segment; the 2nd segment 

 in the proximal part of the anterior margin is highly bulged and in the 

 distal part is concave, giving the segment a characteristic shape. 



The peduncle and rami of uropods I are equal in length; the rami 

 are lanceolate, with a pointed tip and denticulate margins. The rami of 

 uropods II are longer than the basipodite and the endopodite longer and 

 broader than the exopodite. The basipodite of uropods III is the same 

 length as in uropods II but broader; the rami are 1.3-1.5 times longer 

 than the basipodite; the endopodite is less broad in the proximal part 

 and its tip smoothly rounded; the exopodite is lanceolate, has a slightly 

 stretched and pointed tip, and the posterior margin is finely denticulate. 

 The telson is triangular with a rounded tip and approximately equal in 

 length and width. 



Distribution: A rare species. It is known from the Atlantic (south 

 of 20° N), Indian (Zanzibar), and Pacific (Moluccas, near the coast of 

 Chile, southern tropical part, region of New Zealand) oceans. It inhabits 

 the upper 200 m layer. 



3. Genus Parapronoe Claus 1879 



Claus, 1879b: 29; 1887: 55; Stebbing, 1888: 1521; Bowman and Gruner, 

 1973: 44. — Sympronoe Stebbing, 1888: 1533; Bowman and Gruner, 

 1973: 44. 



