SQUALID. 27 
Atlantic, to C. granulosus from the Falkland Islands, and to C. ornatum from 
the Bay of Bengal and the Arabian Sea. Without access to the types it is 
difficult to determine the degrees of affinity. One of the more prominent 
differential features of the species described below, C. mgrum, is apparent in 
the five-cusped teeth, the teeth of each of the other species being described 
as tricuspid. A small badly damaged specimen, taken by the French steamer 
“Talisman,” at a depth of more than eight hundred fathoms, “devant le 
bane d’Arguin,” off the northwestern portion of Africa, has been identified 
by Vaillant, with some hesitation, as belonging to C. Fabricii. This depth 
is the greatest reported for the genus, though all of the species are recorded 
from depths of more than two hundred fathoms. 
Of genera not reported in the “ Albatross” collection a number of species 
occur at great depths. Lztmopterus spinax has been noted from more than 
three hundred fathoms by Vinciguerra, as also 1. pusillus by Vaillant, in the 
Mediterranean and the neighboring Atlantic. The occurrence of 1. pusillus 
off the western coasts of the North Atlantic, noted by Goode and Bean, is 
to be questioned. The specimen taken by the steamer “ Blake” off St. 
Kitts, is at hand, and apparently belongs to Z. spinax ; it has the spines on 
the scales, and the peculiar markings of deep black seen on that species on 
the lower portions and immediately behind the ventrals, especially on young 
and lighter colored individuals. Comparing it with the type specimen of 
E.. Hillianus Poey discloses the fact that the latter would better be placed 
under £. spinaz than under L. pusillus. All the Squalidze commonly taken 
in the deep water fisheries off the coast of Portugal will probably appear in 
the list of deep sea species. This will include the species of Centrophorus, 
Centroscymnus, Seymnodon, Oxynotus, and others to which definite depths 
have not yet been assigned. The species of Centrophorus described by 
Giinther, 1877, from Japan, have habits similar to those of the eastern 
Atlantic. The depths for the genus range from two hundred or more to 
a thousand fathoms, more or less, the greatest being that assigned C. calceus 
and C. squamosus by Vaillant. The same author gives a similar record, of 
six hundred and seventy-two to ten hundred and thirteen fathoms, to Cen- 
troscymnus coelolepis, and one of seven hundred and eighty-four fathoms to 
Centroscymnus obscurus, & new species, taken by the “ Talisman” off the 
coasts of Soudan. According to Wright, C. coelolepis is taken by the Por- 
tuguese fishermen at four hundred to five hundred fathoms, and Goode and 
Bean state that it is “abundant on the offshore banks of New England, 
