200 BULLETIN OF THE 



rays are mutilated). The ventral is inserted almost under the pectoral, but 

 very slightly in advance ; its distance from the snout is less than the length 

 of its longest ray, which is prolonged in a filament which extends to the base 

 of the 18th ray of the anal lin. 



Radial formula : D. I, IX, 113 ; A. 118 ; P. 20 ; V. 9 ; B. VI. 



Length of adult, 481 millimeters ; of young, about 25 millimeters. 



Station. N. Lat. W. Long. Fathom.s. Specimens. 



325 33° 35' 20" 7G° (i47 2 juv., and very 



[rotten, probably belonging to the above species. 



BROTULID^. 

 BARATHRODEMUS, new genus. 



Diagnosis. — Body brotuliforra, -Tiuch compressed; head considerably com- 

 pressed with mouth moderate (in the type species extending to the vertical 

 through the middle of the eye). Eye moderate. Head spineless, except a short 

 flattened spine at the upper angle of the operculum. Snout long, projecting 

 far beyond the tip of the upper jaw, its extremity much swollen. Jaws nearly 

 equal in front. Teeth minute in villiform bands on jaws, vomer, and pala- 

 tines. Barbel none. Anterior pair of nostrils open and situated at the outer 

 angles of the dilated snout, circular, each surrounded with a cluster of mucous 

 tubes. Posterior nostrils over anterior upper margin of orbit. Gill openings 

 wide, membranes not united. Gills four, with a slit behind the fourth : gill 

 laminae moderate in length. Gill rakers also moderate : not numerous. 

 Pseudobranchise absent : a small, separate caudal fin considerably prolonged. 



Dorsal and anal fins long. Branchiostegals, eight. Body and head covered 

 with small, thin scales, those on the body scarcely imbricated. Lateral line 

 absent (?). Ventrals reduced each to a single bifid ray, close together, far in 

 front of the pectorals. 



12. Barathrodemus manatinus, new species. 



Two specimens of this species of Barathrodemus, six and a quarter inches 

 in length, were obtained at Station 325, lat. 33° 35' 20", long. 76°, at a depth 

 of 647 fathoms. 



Description. — Body much compressed. Dorsal and anal outline approach- 

 ing at an equal angle the horizontal axis. The height of the body is contained 

 7^ times in its total length without caudal, and 8^ times with caudal included. 

 Scales small ; about 175 rows between the branchial opening and the tail; and 



