36 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL.18 



Coxa 1 with a tooth at lower posterior corner. Other coxae without 



tooth or slit. 



Gnathopod 1 : article 6 slender, two thirds as long as 5 ; article 7 two 



thirds as long as 6. 



Gnathopod 2 : article 6 slightly more than half as long as 5 ; article 7 

 half as long as 6. 



Peraeopod 1 : anterodistal angle of article 4 slightly produced, article 

 4 sparsely setose ; article 7 longer than 5 and 6 combined. 



Peraeopod 2 similar to 1 but larger, with articles 3 and 4 strongly 

 setose on posterior edges. 



Peraeopod 3 : posterior edge of article 5 with 3 sets of spines ; article 

 6 shorter than 5, posterior edge with 3 spines. 



Peraeopod 4 similar to 3 but with generic differences ; posterior edge 

 of article 6 with 2 spines. 



Peraeopod 5 : lower posterior edge of article 2 oblique, lobe reaching 

 down to joint between articles 4 and 5 ; article 4 subequal to 3 in length, 

 with a moderate large, setose posterior lobe ; article 5 notched on lower 

 anterior edge; article 6 as long as articles 4 and 5 combined; article 7 

 longer than 4, shorter than 6. 



Uropod 1 reaching to end of uropod 2; rami as long as peduncle; 

 outer ramus unarmed, inner edge of inner ramus spinulate. 



Uropod 2 : upper outer edge of peduncle spinulate ; rami as long as 

 peduncle; outer ramus with upper and inner margins spinulate, with a 

 long subapical spine ; inner ramus with both margins spinulate, the outer 

 edge sparsely. 



Uropod 3: rami moderately broad, lanceolate, inner ramus broader 

 than outer; apices acute, inner apical edge of outer ramus setose, outer 

 apical edge of inner ramus setose. 



Telson : apices truncate, somewhat recessed, each armed with a spine 

 and a setule ; upper edge of each lobe with 2 stout spines. 



Pleon segment 3 : posterior edge slightly convex, lower posterior corner 

 produced into a very small tooth. 



Pleon segment 4 raised into a subcristate process which is acute at the 

 posterior end. 



Pleon segment 6 : lateral crests not strongly developed. 



Male : Unknown. 



Types: Holotype, U.S. National Museum No. 93273, ovigerous fe- 

 male, 1 1 mm ; paratypes, 2 deposited at USNM, 2 at AHF. 



Type locality: Station 113-33, Bahia Honda, Panama, 5 to 8 fms. 

 Material examined: The types. 



