KYPHOSIDAE. 119 
Three specimens, Nos. 3148-49-50, 93, 87 and 103 inches long from Tobo- 
guilla Island, Panama Bay. M. C. Z. 29617 (1 specimen). 
The specimens from Acapulco differ somewhat from those from Toboguilla 
Island, which are here provisionally identified with those from Acapuleo. The 
Acapulco specimens from geographical considerations should be most like typical 
K. elegans, which came from Mazatlan, but they differ from the description 
given by Jordan and Evermann (loc. cit.), in having 12 anal rays instead of 11, 
larger eye, longer snout and maxillary, and somewhat longer pectoral; and also 
in having 13 dorsal rays instead of 12. 
Gilbert and Starks (loc. cit.), in their remarks on specimens they have 
identified as K. elegans, call attention to this difference in the fin rays. The 
Acapulco specimens differ also from those from Toboguilla in having a somewhat 
shorter head, smaller eye, slightly shorter maxillary, and a longer anal base. 
In the Toboguilla specimens the snout is somewhat more vertical, the forehead 
is a little more prominent and the throat somewhat concave in outline, which 
in the Acapulco specimens is nearly in line with the ventral curve. 
Proportional measurements of two specimens from Acapulco. 
Total length in inches gi 11} 
Head | 3.70 3.66 
Depth SLi 2.02 
Eye 3.57 3.64 
Snout 33, 1 2.81 
Maxillary | 3.12 2.95 
Pectoral | 1.42 1.44 
Base of anal | 1.19 EPA 
Scales 10-66-16 9-68-16 
Dorsal XI, 13 XI, 13 
Anal | III, 12 III, 12 
Proportional measurements of three specimens from Toboguilla. 
Total length in inches | 9} 83 10% 
Head | 3.55 3.43 3.38 
Depth 2.08 2203 2.03 
Eye 3.40 | 3.40 3.53 
Snout N68 || By | 2.86 
Maxillary 2.91 | 3. 2.86 
Pectoral 1.41 1.46 1.50 
Base of anal 1.24 1.24 1.39 
Scales | 9-68-16 9-68-16 9-68-16 
Dorsal Y  >,G15 218} > 118} XI, 13 
Anal } 10 es | III, 2 | III, 12 
