196 



U. S. p. R. R. EXP. AND SURVEYS — ZOOLOGY — GENERAL REPORT. 



Fig. 3, a scale from the dorsal region. 



Fig. 4, a scale from the lateral line. 



Fig. 5, a scale from the side of the ahdomen. 



Fig. 6 represents the male sex of the same species, also the size of life and from the same 

 locality. 



Fig. 7 is a section across the line of greatest depth. 



Fig. 8, a scale from the dorsal region. 



Fig. 9, a scale from the lateral line. 



Fig. 10, a scale from the side of the ahdomen. 



Plate XXXVI, fig. 1, represents a female individual from the bay of San Francisco, California. 



Fig. 2, a scale from the dorsal region. 



Fig. 3, a scale from the lateral line. 



Fig. 4, a scale from the side of the abdomen. 



Plate XXVI, fig. 7, represents an embryo, size of life, taken within the body of the parent, 

 from the Bay of San Francisco. 



Fig. 8, the same embryo as fig. 7, enlarged about twice. 



lAst of spedmena. 



ENNICHTHYS, Girard. 



Gek. Char Head of medium size. Mouth largo and obli<iiic ; lower jaw projecting beyond the upper. Lips thin ; lower 



one free all roimd. Prcmaxillarlcs slightly protractile. Teeth small, slender, and conical, disposed upon a double feries on 

 *botli jaws. Spinous portion of dorsal fin higlier than the soft. Anterior articulated rays of anal divided like the rest, and pre- 

 ceded by three smuU spines lower than the articulated roys. Scales of moderate development. Lateral line concurrent with 

 the dorsal outline. Scales upon the base of caudal and anal. Dorsal groove rather short ; sheath formed anteriorly by three 

 rows of scales, tapering posteriorly. 



SYt>.—Ennichlhijs, Grd. in Proc. Acad. Nat. Sc. Philad. VII, 1855, 322. 



The structure of the dorsal is suggestive of the genus Holconotus, but the presence of a double 

 row of teeth on the lower, as well as on the upper jaw, separates altogether both of the genera. 



