52 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL.18 



Byblis veleronis n. sp. 



Plates 37 and 38 



Description of female: Anterior margin of head produced in the 

 middle to a small obtuse point, anteroinferior margin straight, parallel 

 to upper margin. Eyes large, dorsal pair near front margin of head, 

 lower pair at inferoanterior angle of head. 



Antenna 1 longer than peduncle of antenna 2 by about the length 

 of article 5 of antenna 2 ; article 1 of peduncle tumid ; article 2 slender, 

 ranging from one and one-half to three times as long as article 1 

 (longer in older specimens) ; article 3 slightly shorter than 1. 



Antenna 2 about two thirds as long as body; article 5 of peduncle 

 about seven eighths as long as article 4. 



Mandible: spine row with 7 to 12 spines; article 3 of palp more 

 than half as long as 2. 



Maxilla 1 : inner plate elongated, triangular, apex with 1 seta ; 

 outer plate with 1 1 serrated spines ; article 2 of palp half again as wide 

 as outer plate, apex armed with 4 spines, 3 cusps and 10 setae. 



Maxilla 2: about as figured by Sars (1895, plate 64) for B. gaimardi 

 (Kr</>yer), but inner plate smaller. 



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

 with 2 chisel teeth; outer plate extending to end of palp article 2, 

 inner edge with 11 to 13 chisel teeth, rounded apex with 6 to 9 spines; 

 article 3 of palp rather slender at base. 



Anterior and lower edge of coxae slightly serrate and closely setose. 



Gnathopod 1 : article 2 slender ; article 6 two thirds as long as 5 ; 

 article 7 two thirds as long as 6, lined on inner edge with setules. 



Gnathopod 2 : article 6 about two thirds as long as 5 ; article 7 two 

 thirds as long as 6, similar to but more slender and longer than in 

 gnathopod 1. 



Peraeopod 1 : article 4 rather slender, article 6 about half again as 

 long as 5, article 7 shorter than 6. 



Peraeopod 2: article 7 nearly subequal to 6, appendage longer and 

 more setose than peraeopod 1. 



Peraeopod 3 : article 2 with a rather slender posterior lobe, anterior 

 margin armed with spines and setae; posterior margin of article 5 with 

 6 sets of spines, posterior margin of article 6 with 8 spines. 



Peraeopod 4: posterior lobe of article 2 not developed; posterior 

 edge of article 5 with 5 sets of spines, posterior edge of article 6 with 

 6 spines. 



