690 PROCEEDINGS OF THE NATIONAL MUSEUM 



Table 2— Proportional dimensions in percent of total length— Qoni\n\XQd 



VOL. 118 



IsuTua alatua, new species 



2nd dorsal fin 



length of base 



posterior margin 



height 

 Anal fin 



length of base 



posterior margin 



height 

 Pectoral fin 



length of base 



anterior margin 



distal margin 

 Pelvic fin 



length of base 



anterior margin 



distal margin 



length of claspers 

 Caudal fin 



length dorsal lobe 



length ventral lobe 

 Trunk at pectoral origin 



width 



height 



Dental formula 



Total vertebrae 

 Precaudal vertebrae 

 Caudal vertebrae 



"^H^l "^l^k^ 51372 cflSOl c?2150 



mm. Indo- nim.2 Cen- mm. Indo- mm.J Cen- mm.2 Cen- 

 F-,^^.% tral Pacific Pacific tral Pacific tral Pacific 

 USNM USNM USNM USNM '''''' ''^'^^^ 



197427 196024 197429 196039 



195 

 112 



83 



197 



111 



86 



• Only the jaws of this specimen were preserved. 



a Measurements supplied by Dr. Donald W. Strasburg. Only the jaws of these specimens were preserved. 



