PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 



Dorsal (sjnnous) : 



Distauce from snout 94 



Leuytb of longest ray 20 



Length of last ray 7 



Anal : 



Distance from snout 350 



Length of longest ray 9 



Caudal : 



Length of middle rays , 8 



Length of external rays 17 + 



Pectoral : 



Distance from snout 110 



Length 42 



Ventral: 



Distance from snout — • 111 



Length 3^ 



Branchiostegals VII 



Dorsal 154 



Anal, about 100 



Pectoral 12 



Ventral 1,1 



Number of ca^cal appendages 8(?) 



U. S. National Museum, Washington, B. C, Bee. 30, 1881. 



DESCRIPTIOIV OF A IVE^V SPECIES OF POxtlADASVS FROITI ITIAZAT- 

 r,AIV, WBTII A KEY TO TBBE SPECIES Kl^fOW^f TO IIVHABIT THG 

 PACIFIC COASTS OF TROPICAI. AiMERICA. 



By DATID S. JORDAIV and €HARl.ES H. OILBERT. 



Pomadasys caesius sp. nov. 



Allied to P. pacifici (Gthr.). 



Head, 3^ in length (34 with caudal); depth, 2^ (2f with caudal). 



Length (28158), 0| inches; D. XII, IG; A. Ill, 9; scales, 6-52-13. 



Body ovate, compressed, the back rather strongly arched; anterior 

 profile rather steep and straightish, gibbous between eyes and also 

 behind them, slightly depressed above eyes and at the uape. Ventral 

 outline considerably arched. Caudal peduncle moderate, about half as 

 long as head, and somewhat longer than deep. 



Head short and deep; deeper than long. Snout very short, blunt 

 and thick, about one-third length of head. Mouth very small, the max- 

 illary not quite reaching to the front of the eye, its length (from tip of 

 snout) 3J in head. Teeth cardiform, in broad bands, the outer series 

 enlarged, but smaller than in P. pacifici. Eye large, 3J in head, shorter 

 than snout, about one-fourth wider than the broad i)redrbital. Lips 

 thick. Chin with a median furrow and two pores; lower jaw included. 

 Anterior nostril much larger than posterior. Preopercle rather weakly 

 serrate, its upright limb somewhat concave. Gill-rakers short and 

 weak, about 10 on lower limb of arch. 



Scales rather large, arranged as in related species, those above the 



