608 PROCEEDINGS OF THE ACADEMY OF [Oct., 



in front. Bones on head all with rather conspicuous and coarse 

 rugosities or striae. 



Gill-opening forward about f to eye, forming rather broad fold over 

 isthmus. Rakers 4 + 14 short rounded stumps, filaments about 

 half of horizontal eye. and pseudobranchiae about f of filaments. 

 Few osseous scutes along inside edge of gill-opening. 



Most all scales entirely smooth, a few about head and anterior 

 predorsal region with a few slight rugosities. Series of enlarged scales 

 along gill-opening above and down to pectoral base quite rugose. 

 L. 1. nearly median along side, curving down little low along caudal 

 peduncle side, and each scale in its course with slight notch at posterior 

 apex. 



Dorsal origin little before last fourth in entire length of body, or 

 about opposite base of fourth branched anal ray, second and third 

 branched rays subequally longest, fin rounded, and when depressed 

 nearly reaching median caudal base. Anal similar, inserted well 

 before dorsal, and second, third and fourth branched rays subequally 

 longest. Caudal elongate, rounded, and upper median rays longest. 

 Pectoral pointed, 2f to ventral. Ventral larger than pectoral, inserted 

 trifle nearer latter than anal, and depressed 2^ to anal. Vent close 

 before anal. 



Color in alcohol faded dull brownish, back and upper surface darker, 

 paler below. All fins pale brownish, each with a few rather large 

 deeper brown spots, of darker shade on dorsal, anal and caudal, and 

 others all very indistinct. Iris brass}-. 



Length 344 mm. (13 inches). 



Type, No. 621, A. X. S. P. Leavenworth, Kan. E. D. Cope. 

 (Figured.) 



Also No. 622, A. N. 8. P., paratype, same data. Besides this, are 

 2 other examples referrible to this species. An alcoholic preparation 

 labeled "San Domingo, West Indies, W. M. Gabb," is uncertain and 

 may have really come from somewhere in the United States, while a 

 dry skin in the Cope Collection has no other data. These specimens 

 show: Head 31-3* ; depth 2*-3£; D. 8; A. 8; P. 11-12; V. 6; scales- 

 62-63 in 1. 1.; predorsal scales 51-55; scales around trunk middle 

 41-48; snout lf-lf in head; eye 1^-U to opercle, lf-2 in inter- 

 orbital; interorbital i-1 to opercle; length 344-550 mm. This 

 species differs at once from C. platostomus in the larger eye and much 

 coarser striations or rugosities on the head. 



(Scaber, rough; ceps, head.) 



