954 PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 
ALEPOCEPHALIDE. 
Alepocephahis productus. 
HALOSAURID. 
Halosaurus Goodei. 
BERYCIDA. 
Plectromus suborbitalis. 
Stephanoberyx Mone. 
Caulolepis longidens. 
BROTULIDZ. 
Bassozetus normalis. 
GADIDZ. 
Onos rufus. 
MACRURIDA. 
Macrurus Bairdii (Goode & Bean). 
DESCRIPTIONS OF SPECIES. 
PETROMYZONTIDZE. 
Petromyzon (Bathymyzon) Bairdii. 
A lamprey closely related to the common sea lamprey (Powerman 
marinus) but with the suproral and infroral plates or lamine destitute 
of odontoid tubercles, the armature of the lamprey type being obsoles- 
cent. 
Inasmuch as the character which thus distinguishes the species con- 
tradicts the generic diagnosis attributed to the genus by Giinther, Jor- 
dan and Gilbert, and other ichthyologists, it may be at least subgener- 
ically distinguished, on account of the obsolescence of the denticles, 
under the name BATHYMYZON. 
N. M. No. Station. | Lat. Long. 
Fathoms. Specimens. 
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— L 2: 
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\- : -|- 
| o ou “" | Cis’ " | 
2048 | | 40 02 00 | 68 50 30 
z 
CHIMAERIDZ. 
Chimera abbreviata. 
The snout is moderately produced and the subrostral contour very 
oblique; the ante-orbital flexure of the suborbital line ascends almost 
as high as the upper margin of the pupil; the dorsals are scarcely sep- 
arated by an interspace and the spine of the first is acutely angulated 
and keeled in front; the pectorals extend nearly to the inner axils of 
the ventrals; the latter are acutely angulated; the tail is abbreviated 
and only about as long as the head (from the snout to the transverse 
nuchal line); the color is dark yellow (in life) or brownish, while the 
