PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 261 
Serrivomer Beanii. 
D157. A. 138. 
The stoutest of the family and with much shorter jaws than any other, 
and with a very formidable vomerine armature. The total length of 
the single specimen obtained was .594 of a meter; its height at the 
vertical of the mandibular articulation is .016 m., and the greatest 
height of the body (just behind the branchial apertures) is .02 m. 
N. M. No. Station. | Latitude. ‘Longitude. Fathoms. | Specimen. 
° ‘ a” fe} i a“ 
eee eee = arenes ee viriac es hsieicee= <= 2075 | 41 40 30) 65 28 30 855 1 
SPINIVOMER. 
Nemichthyids with a rectilinear occipito-rostral outline, with very 
attenuated jaws, high mandibular rami, the branchial apertures nearly 
confluent, enlarged acute conic teeth an a median row on the vomer, 
and with a silvery epidermis, and a filiform tail. 
Spinivomer Goodei. 
D; A. 
The smallest of the family, but a beautiful silvery form. The total 
length of the only specimen found is .13 of a meter, and its greatest 
height (at the branchial region) is .0025 m. 
The rays are ensheathed in a tough membrane which renders it im- 
possible at present to enumerate them with exactitude. They are, how- 
ever, it is to be noted, more distant from each other, and consequently 
fewer than in Serrivomer. | 
The fish has a silvery sheen by which, as well by the smaller eyes and 
deeper mandibles, it may be at once recognized from its relations. 
| } 
| 
Latitude. | Longitude. 
N. M. No. | Station. | Fathoms. | Specimen. 
yes a ate) a pose 
| fe} , uw | re} 4 WW | 
(pe Ghee SSG 2 SIS aan ea 2039 38 19 26| 68 20 20 | 2, 361 | 1 
| i 
LABICHTHYS. 
Nemichthyids with the head behind the eyes contracted, with very 
attenuated jaws, the branchiostegal membrane connected to the throat 
and the branchial apertures limited to the sides, with small conical teeth 
in a band along the vomer and otherwise dentition of Nemichthys, a 
black epidermis, and the tail abruptly truncated. 
Labichthys carinatus. 
268. A: 287. «P. 13: 
The ridges that bound the median rostral sulcus converge and form a 
carina along the median line in vertical from the anterior border of the 
