66 PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM.. 
These two individuals, together with a third of smaller size, and cer- 
tainly of another species, were procured in the market of San Francisco 
by W. G. W. Harford, in 1876. The fishmonger called them “ deep-sea 
fish,” and said that he had never seen the kind before. No others have 
appeared in the market since. A smaller example is in the museum of 
the State University, Berkeley, and was procured in Washington Terri- 
tory. 
The relations of this fish are probably with the Blennioid fishes. It 
ean, however, hardly be referred to any of the current families, and 
should perhaps form the type of a separate one. 
Osmerus attenuatus. 
Osmerus elongatus Lockington, Rep. Commissioners Fisheries State of Cal., 
1879, p.43; not Osmerus elongatus Ayers, Proc. Cal. Acad., Vol. I, p. 17. 
De LOs > PA IP. 14 VARS; 
Trorm elongate, fusiform, dorsal outline rising gently to a point just 
behind the origin of the pectoral, thence almost straight to dorsal, 
thence tapering regularly to the caudal peduncle. Abdominal outline 
Straight from the posterior extremity of the maxillary to the ventrals, 
thence inclining upwards slowly to the caudal peduncle. 
Greatest depth 73-8? times; head 44 to nearly 5 times in the total 
length; eye about 4 times in the length of the head; snout about the 
same length as the eye; caudal peduncle 22-23 times in the greatest 
depth. 
Viewed from above, the forehead and snout diminish in width ante- 
riorly. 
Nostrils conspicuous, divided by a thin partition, simple, situated on 
a line from the top of the pupil to the tip of the snout, and about half 
way between the latter and the anterior margin of the orbit. 
Eyes large, subcireular, entirely in the anterior half of the head; 
upper orbital margins raised, but the interorbital space between these 
margins flat transversely. 
Mouth large, the commissure straight and ascending anteriorly at an 
angle of about 30°, the tip of the upper jaw horizontal with the center 
of the pupil, and the posterior extremity of the maxillary on a vertical 
line from the posterior margin of the pupil; mandible straight on its 
lower border, its tip projecting beyond that of the upper jaw. 
Dentition tolerably strong, on jaws and palatines. Teeth of upper 
jaw in a Single row, numerous, small, slender, those in front inclined 
forward, a large tooth at the symphysis. 
Lower jaw with a double row of slightly recurved teeth in front, the 
outer extending only about one-fifth of the length of the sides of the 
mandible, the inner row extending along the sides, and consisting of - 
larger teeth than the outer or than those of the upper jaw; the largest 
situated along the sides, and much wider apart than those of the upper 
jaw. 
- Inner palatine row of numerous small teeth; outer palatine series 
