455 



distinguishable from other species of the genus. The 2nd segment of 

 pereopods V is oval, its length twice its width; in front of the base of 

 the 3rd segment a distal lobe occurs; the 4th-6th segments are denticulate; 

 the claw is long, half the length of the 6th segment. The 2nd segment of 

 pereopods VI is notably longer than the remaining segments together; the 

 distal process of the 4th segment reaches the base of the 6th segment. 

 The distal segment of pereopods VII is more elongated than in other 

 species of the genus. 



The telson is triangular, somewhat longer than wide, and its tip 

 reaches slightly beyond the middle of the rami of uropods III. 



Distribution: Only isolated individuals have been found in the 

 Atlantic (31°48' N, 14°22' W and 34°23' N, 15°31' W), in the eastern 

 part of the Indian, and tropical zone of the Pacific oceans. 



2. Genus Pronoe Guerin-Meneville, 1836 



Guerin-Meneville, 1836: 6; Claus, 1879b: 23; 1887: 48; Stebbing, 

 1888: 1507. 



The flagellum of antennae I is three-segmented in males; antennae II 

 are fairly short, the flagellum only two-segmented. Pereopods I and II 

 are simple; the 2nd segment of pereopods I is very strongly broadened, 

 in pereopods II narrower. The 2nd segment of pereopods V is barely 

 broadened, in pereopods VI and VII strongly so. The 4th segment of 

 pereopods VI lacks distal processes. Pereopods VII have one distal seg- 

 ment in the shape of a claw. The endopodite of uropods II and III is not 

 fused with the basipodite. The basipodite of uropods III is longer than 

 wide. The telson is short and has a rounded tip. 



Type species: Pronoe capito Guerin-Meneville, 1836. 



1. Pronoe capito Guerin-Meneville, 1836 (Fig. 198) 



Guerin-Meneville, 1836: 7; Claus, 1879b: 25; 1887: 50; Stebbing, 

 1888: 1508; Spandl, 1924: 34. 



Length of adult males 10-14 mm. Female not described. 



The head is anteriorly tapered and approximately equal in height 

 and length. 



The peduncle of antennae I is three-segmented in males, the 1st 

 segment equal in length and width, and the 2nd and 3rd segments much 

 shorter; the flagellum is three-segmented, the 1st segment broad and long 

 and weakly bent forward only in the distal part; the 2nd segment is equal 

 in length and width; the 3rd segment is linear and narrow, twice longer 

 than the 2nd, and bears a few short spines apically. Antennae II in males 

 are short and weak compared to other species of the family Pronoidae; 

 they are five-segmented, folded only twice, and the shortest, 3rd segment, 



