PISHES — BLENNIDAE — ANAERHICHTHYS FELIS. 125 



ANAERHICHTHYS FELIS, G r d . 

 Plate XXVa, Figs. 1—3. 



Spec. Char. — Profile of head uniformly convex; eye large and circular. Mouth deeply cleft; posterior extremity of 

 maxillar bone extending to a vertical line drawtf across the posterior rim of Ihe orbit. Origin of the dorsal fin situated ante- 

 riorly to the base of the pectorals. Caudal fin lanceolated. Head and body mottled with light ashy grey and dark olive green, 

 disposed in irregular circles, lines, and blotches, which extend also to the dorsal fin. 



Stn. — Jlnarrhkhas ftlis, Grd. in Proc. Acad. Nat. Sc. Philad. VII, 1854, 150. 

 Jinarrhichthijs ocellatus, Ayres, in Proc. Cal. Acad. Nat. Sc. I, 1855, 31. 



The Smithsonian Institution has received three specimens of this species from Dr. W. 0. 

 Ayres, of California, the largest of which, being figured, measures over twenty-two inches in 

 total length. The head is compressed like the body and proportionally well developed, forming 

 about the twelfth of the entire length. Its upper surface is regularly convex from occiput to 

 extremity of snout. The mouth is deeply cleft ; its gape being slightly oblique upwards, and 

 the lower jaw somewhat projecting beyond the upper. The posterior extremity of the maxillar 

 bone is even with a vertical line drawn across the posterior rim of the orbit. The lips are loose, 

 flabby, and conspicuous, whilst the nostrils are quite small and placed nearer the eye than 

 the extremity of the snout. The teeth are very strong, the number of canine varying according 

 to the individuals ; they occupy the extremity of both jaws, generally five or six upon each, 

 disposed upon one row, and occasionally two or more in each jaw also inwardly of the former. 

 The palatine teeth are much smaller than the vomerine ones. The eye is large, subcircular, 

 approximating the upper surface of the head ; their diameter is contained five times in the 

 length of the side of the head. A rather wide isthmus is interposed between the gill apertures 

 under the throat ; the branchiostegal rays, seven on either side, are slender and imbedded in a 

 thick branchiostegal membrane. 



The body is taeuioid, compressed, deepest upon the throacic region, hence diminishing gradu- 

 ally backwards until it terminates into a point at the extremity of the tail. 



The dorsal fin originates anteriorly to the base of the pectorals ; it increases gradually in 

 height to about the fourth of its length, hence diminishing posteriorly to the base of the caudal. 

 The anal assumes the same form as the dorsal, though much less deep than the latter is high. 

 The pectorals are well developed, elongated, rounded, and slightly scalloped upon their 

 margin. 



The rays of the dorsal fin are slender and flexible undivided spines ; those of the anal and 

 caudal are articulated and dichotomised. The inter radial membrane is quite thick, rendering 

 difiicult the counting of the rays without dissection. 



The scales are exceedingly small, imbedded in the skin, not imbricated and much less numer- 

 ous anteriorly than posteriorly. They are sub-circular with wide radiating grooves all around, 

 cutting up the concentric striae. 



The ground color is light ashy grey, upon which irregular ocellae and blotches of dark olive 

 green are disposed. The ocellae are surrounded by a lighter filet, giving a quite handsome 

 appearance to this fish. These ocellae and blotches cover the head, body, and dorsal fin, the 

 upper margin of which is light olive. A narrow band of the same may be observed posteriorly 

 along the base of the dorsal fin and middle region of the caudal. The anal is uniform dark 

 brown or black with a whitish border like the dorsal. Its margin is slightly scalloped. In 



