PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 383 



Dorsal (sinnous) : 



Distance from snout - 94 



Length of longest ray 20 



Length of last ray 7 



Anal: 



Distance from snout 350 



Length of longest ray 9 



Caudal : 



Length of micldle rays - 8 



Length of external rays Ins- 

 pectoral : 



Distance from snout 110 



Length 42 



Ventral : 



Distance from snout Ill 



Length 3| 



Branchiostegals VII 



Dorsal 154 



Anal, about 100 



Pectoral 12 



Ventral 1,1 



Number of cfecal appendages 8(?) 



U. S. National Museum, Washingion, D. C, Dec. 30, 1881. 



DESCKIPTIOIV OF A IVEW SPECIES OF POMAUASYS FROm ItlAZAT- 

 liArV, ^VITH A KEY TO THE SPECIES BtlVOWlV TO IIVHABIT THE 



PACIFIC COASTS OF TROPICAL, AmERICA. 



By DAVID S. JORDAN and CHARL£S H. OILBERT. 



Pomadasys caesius ap. nov. 



Allied to P. pacijici [Gthr.). 



Head, 3^ in length (3| with candal); depth, 2^ (2^ with caudal). 



Length (28158), 9f 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 nape. 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) 3| in head. Teeth cardiform, in broad bands, the outer series 

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

 than snout, about one-fourth wider than the broad preorbital. Lips 

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

 Anterior nostril much larger than posterior. Preoi^ercle 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 



