18 



ZOOLOGY. 



List of specimens. 



VIII. FAMILY SCOMBRIDAE. 



25. TKACHURUS SYMMETRICUS, Grd. 

 General Report upon Fishes. 



Head forming the fourth of the total length ; posterior extremity of maxillary extending to 

 the anterior rim of the orbit. Shields of lateral line smallest upon its bent, under the ante- 

 rior third of the second dorsal. Greenish brown above, lighter on the sides, silvery beneath ; 

 a brownish black blotch at the superior and posterior angle of the opercle ; fins unicolor. 



There is, as yet, no vernacular name to designate this fish. 



List of specimens. 



IX. FAMILY BLENIDAE. 



26. BLENNIUS GENTILIS, Grd. 



Plate XXVa, fig. 4 — General Ueport upon Fishes. 



A small canine on each side of the upper jaw. A supraorbital membranous flap. A slight de- 

 pression between the spinous and the soft portions of the dorsal fin. Lateral line terminating 

 under the eleventh spiny ray. Ground color yellowish brown, maculated with purple. 



This is a "blenny," unknown to the Californian settlers. 



List of specimens. 



27. GUNNELLUS ORNATUS, Grd. 



Plate XXV6, figs. 6 and 7. — General Report upon Fishes. 

 Dorsal and anal fins contiguous to the caudal ; anal spines, two ; ventrals reduced to two ex- 

 ceedingly small spines. Head quite small. An occipito-ocular dark vitta continued vertically 



