26 DEEP SEA FISHES. 
ANTACEA. 
Antacea Raf., 1815, Analyse de la Nature. 
SCYLIORHINID&. 
The commonly accepted orthography and etymology for the family 
name of the Dog-nosed sharks, “ Scylliorhinide,’ is somewhat liable to 
criticism. As compounded by Blainville the generic term from which it 
is taken was made up of the Greek name of the dogfishes, oxvAva, canicule 
(see Aristotle, History of Animals, book VI. chapter X.), with that of the 
nose, piv; whether correct in its original form, Seylorhinus, is another 
question. In the common form of the name derivation is traced to oxvdd@, 
to rend or to mangle. 
This family is unrepresented in the present collection. Species belong- 
ing to it occur on both sides of the area immediately concerning this paper: 
to the northward several types from considerable depths have been de- 
scribed by Gilbert and others, for imstances Scyliorhinus brunneus Gilb., 
from the Gulf of California, and S. ventriosus Garm., from Acapulco and 
northward, are likely to descend to depths of more than a hundred and 
fifty fathoms at particular times; to the southward again, there are several 
species, of which one at least, S. canescens Giint., from the southwest coasts 
of South America, is entitled to a place in the list of deep sea Selachians. 
Off the Atlantic coasts of the United States and the West Indies two species 
from great depths have been discovered in recent times, S. reifer Garm., 
and S. profundorum G. B. Two species were discovered by Alcock, in the 
collections made by the “Investigator” in the northern part of the Indian 
ocean, one of which he doubtfully identifies with Giinther’s South American 
species S. canescens, To the list of species from the eastern Atlantic Vaillant 
has added three new ones from the collections of the steamers “ Travailleur” 
and “Talisman,” but one of them, Pristiurus atlanticus, is identified by 
Collett, 1896, with the earlier described P. melastomus Raf. 
SQUALID. 
Squalide Bonaparte, 1831. 
The only member of this family obtained by the steamer “ Albatross ” in 
the vicinity of the Galapagos Islands is a species of the genus Centroscyllium, 
very closely allied to C. Fabrici’ from the western portion of the North 
ae 
