22 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL.18 



Antenna 1 reaching almost to end of peduncle of antenna 2 ; article 

 2 of peduncle half again as long as 1 ; article 3 one half as long as 1. 



Antenna 2 more than half as long as body; article 5 of peduncle about 

 four fifths as long as 4. 



Mandible : spine row with 7 or 8 spines ; article 3 of palp about as 

 long as 2. 



Maxilla 1: outer plate armed with 10 to 13 spines; article 2 of 

 palp nearly as wide as apex of outer plate, armed with 4 spines, 3 cusp 

 teeth and 8 setae. 



Maxilla 2 rather stout, apex of outer plate not expanded, almost 

 tapering. 



Maxilliped: inner plate reaching to end of palp article 1, apex with 

 1 chisel tooth; outer plate reaching to end of palp article 2, inner edge 

 with 6 chisel teeth, rounded apex with 4 setal spines, the outermost 

 plumose. 



Coxae without slit at lower posterior corner. 



Gnathopod 1 rather slender; article 6 two thirds as long as 5 ; article 

 7 more than one half as long as 6; posterior edge of article 6 nearly 

 straight. 



Gnathopod 2: article 6 about one half as long as 5, article 7 about 

 two thirds as long as 6. 



Peraeopod 1 : article 4 produced slightly at anterodistal angle ; article 

 7 slightly longer than articles 5 and 6 combined. 



Peraeopod 2 similar to 1 but with generic differences. 



Peraeopod 3 rather stout; article 6 shorter than 5, with 1 spine on 

 posterior edge ; article 5 with 3 sets of spines on posterior edge. 



Peraeopod 4: posterior edge of article 5 with 2 sets of spines, of 

 article 6 with 2 spines. 



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

 nearly truncate, reaching down nearly to middle of article 4 ; articles 3 

 and 4 subequal in length ; article 5 shorter than 6 ; article 7 about as long 

 as 5 ; anterodistal edge of article 5 notched. 



Urosome reduced in size. 



Uropod 1 reaching to end of uropod 2 ; peduncle short, stout ; rami 

 longer than peduncle, outer ramus longer than inner; inner edge of inner 

 ramus with a few spines. 



Uropod 2: rami shorter than peduncle; upper edges of both rami 

 spinulate. 



Uropod 3 : rami moderately broad, lanceolate, not much longer than 

 peduncle ; inner ramus wider than outer. 



