Extraordinary Fishes from California. 225 
The fin itself reaches nearer the base of the tail. The caudal 
fin is deeply forked ; it contains fourteen rays, omitting its 
outer and short rays. There are eight rows of scales be- 
tween the lateral line and the spinous portion of the dorsal 
fin, and eighteen rows below the lateral line in the same region. 
Sixty scales in the lateral line. Colour uniformly dark olive- 
brown along the back, fading slightly upon the sides ; dor- 
sal black, mottled with white ; caudal blackish, lighter upon 
the base; anal deep black, with a light longitudinal band ; 
pectorals white ; ventrals black with light base. 
From the above description, it must be obvious that this is 
the species first observed by Mr A. C. Jackson, to whom I 
have inscribed it, or at least a species very closely allied to 
it. There is only one fact about it which surprises me, that 
while he observed mature young in it on the 7th of June, Mr 
T. G. Cary should have found it still with young as late as 
the beginning of August. Again Mr Jackson saw nineteen 
young in it, whilst in the specimens forwarded by Mr Cary 
IT found only eight or nine young, which were transversely 
banded like Emb. Caryi. May there be two species so closely 
allied as to be easily mistaken? I must add, that Mr Jack- 
son does not mention the mottled appearance of the dorsal, 
nor the light band upon the anal of his fish ; which renders 
the supposition more probable that there are several, and not 
only two species of this remarkable genus, about San Fran- 
cisco. I would, however, not forego the opportunity of con- 
necting the name of Mr Jackson with his interesting dis- 
covery, and have therefore called Hmb. Jacksoni that one of 
the species sent me by Mr Cary, which agrees most closely 
with his description, leaving it for the future to decide 
whether this species is truly the one he first saw—a circum- 
stance which is quite immaterial, since we already know two 
species of this extraordinary type. 
2. Hmbiotoco Caryi, Agass.—The body is much more 
elongated than in Embiotoca Jacksoni, yet equally com- 
pressed. Its height, including that of the dorsal fin, is 
less than the distance from the end of the snout to the ex- 
_ tremity of the pectoral; and less than one-half the length 
of the fish. The profile is much less steep, and the snout 
VOL. LVII. NO. CXIV.—OCTOBER 1854. P 
