SCYMNORHINID&. 31 
rounded off. Pectorals and ventrals are short, broad, and rounded on the 
margins, except in case of the hinder angle of the ventrals, which is sharp. 
Deep black, with a narrow edging of white on each of the fins excepting 
the caudal. 
This description is taken from a specimen of eleven and one-half inches 
in length. 
On a small individual, of four and three quarters inches, slight differ- 
ences in the outlines and in the positions of the fins are presented; the 
pectorals reach backward of the first dorsal spine, the spine of the 
second dorsal stands above the hind part of the bases of the ventrals, 
the eye is proportionally larger and the-snout is shorter, the white of 
the margins of dorsals, pectorals, and ventrals is much broader, and the 
color of the muscular portions of the body is brown. 
Station. Latitude. Longitude. Depth. Temperature. Bottom. 
3356 79! 307N 81° 8/ 30” W. 546 fathoms 40.1° F. Soft black mud. 
3358 6° 30’ N. 81° 44’ W. jaya) UC 40.2° F. Green sand. 
SCYMNORHINID A. 
Scymnorhinini Bonaparte, 1846, in part. 
The typical species of this family, Sceymnorhinus licha, is a small shark 
of the Mediterranean sea and the neighboring parts of the Atlantic. It 
was first described by Broussonet, in 1780, under the name “ Liche,”’ after- 
ward named Sgualus licha by Bonnaterre, in 1788, and in the same or the 
following year described by Gmelin with the name Squalus americanus. In 
1810, Risso described and renamed the species Squalus nicwensis. Blainville, 
1820-30, fixed upon the name Squalus (Acanthorhinus) americanus. Cuvier 
first applied the name Scymnus to the genus. The compound Seymnus lichia 
was made by Bonaparte, who also named its subfamily Scymninz, subse- 
quently, on account of prior application of Scymnus among insects, replac- 
ing these names by Scymnorhinus and Scymnorhinini. The family has been 
named Dadatiide by authors able to satisfy themselves that the species de- 
scribed by Rafinesque, 1810, as Dalatias sparophagus is identical with 
Seymnorhinus licha. The grounds for this conclusion appear to be the 
occurrence of the latter in the locality assigned the former, and absence of 
the shark actually described and figured by Rafinesque. The facts in the 
case are far from supporting the position. Bonnaterre’s species, S. dicha, 
