330 covruinrTioxs TO NORTH AMEIIICAN ICHTHYOLOGY iv. 



the caudal peduncle. Bluish black, sides somewhat variegated \vith 

 darker, the males somewhat spotted; edge of caudal I'm black in the 

 male; a black patch ou last rays of dorsal in the female. Head 3i ; 

 depth '2 to :i. D. 11; A. !': scales iM-lil. L. L'.V inches. Eio Grande. 

 (Oirard.) 



(Baird A tJininl. J'n.r. Arad. Nat. Sri. I'hila. 1853, 389; Girard, U. S. M.-x. I'.oimd. 

 Surv. I, lull. <;;;.) 



C. ealifo&'Eigciisis Grd. 

 " It may be easily distinguished (Vein its congeners in North America, 

 by its uniform system of coloration \vhich exhibits neither bauds nor 

 spots. The general aspect of its body is rather short and deep, except 

 in the young which assume a subfusifonu appearance. The largest 

 s]>ecimeiis which we have examined measure about an inch and a half 

 in total length. The head constitutes the fourth of the length, the snout 

 being abruptly rounded off. The mouth is, proportionally speaking, 

 of medium si/e, whilst the eye is rather small, subcircular ; its diameter 

 entering three times and a half in the length of the side of the head. The 

 dorsal lilt is higher than long, and superiorly convex ; its interior margin 

 being nearer the apex of the snout than the posterior margin of the 

 caudal. The anal lin is nearly as large as the dorsal, deeper than long, 

 inl'eriorly convex, particularly upon its posterior half. The caudal is 

 posteriorly truncated, nearly linear. The ventrals are small, project 

 beyond the vent and reach almost the origin of the anal. The pectorals 

 are well developed, rounded off, extending as far as a vertical linedraun 

 at the insertion of the ventrals. The rays are: D. 10 + 1; A. 11; C. 

 3, 1, S, S, 1, ;{; V. 7; P. 11*. The scales are much deeper than long, 

 anteriorly truncated and posteriorly rounded oil' or convex. The color 

 is olivaceous brown, with a dark grayish tint along the back, and a 

 golden tint beneath." ((iirnnt.) San Diego, California. 



. I'ior. Arad. \;,|. Sri. I'hila, 1 ~.V.I. I.',?.) 



.':;<>. < . m&culariiu Baird d *<irar<i. 



Apparently very similar to C. raricyntnx ; the female dark above, 

 with dark bars on the sides and a dark shade across the dorsal lin ; lins 

 lather small. Head 3j depth L'-L'A. I). 1O; A. 11; scales LMJ-0. L. 13 

 inches, llio (iila. i (iirnrd.) 



i I'.. A C. I'm,-. A.cad. Nat. Bci. I'hila. 1>.V'., :5S'J; (iirard, U. S. Mr\. Uiiiuid. Surv. 

 I. lull. 6G 



. <'. r:ir|>io I iiiuiln-r. 



Slenderer than ('. rnririjiii ux ; humeral scale scarcely larger than the 

 others; dorsal liii inserted slightly behind ventrals; eye 3 in head, a 



