464 THE DEPTHS OF THE SEA. (CHAP. IX, 
V. Woop, also common to Norway and Shetland, 
is found fossil in the coralline and red crag, and 
Fusus sarsi, JEFFREYS, common to Shetland and 
Norway, is found fossil at Bridlington. 
Several species have hitherto been known only 
from the south, and Mr. Jeffreys finds a difficulty 
in accounting for their presence. Thus, Tedlina com- 
pressa, Broccut, is known from the Canary Islands 
and the Mediterranean, and is fossil in the newer 
Italian tertiaries. Verticordia acuticostata, PHILIPPI, 
Fie. 76.— Buccinopsis striutu, JEFFREYS. Fic. 77.—Latirus albus, JEFFREYS. 
StH > =i 2 ae 
Fxroe Channel. Twice the natural size. Fitroe 
Channel. 
I have already referred to as being found on the 
coasts of Portugal and of Japan. It is a common 
fossil in the coralline crag of Calabria. The mol- 
lusea which are of the most special interest, how- 
ever, are those which we must refer to the abyssal 
fauna. About this group we know as yet very 
little. Like the Echinoderms, they seem to be special, 
and to have a wide lateral extension. Pleuronectia 
lucida, JEFFREYS (Fig. 78), a pretty little clam be- 
longing to the Pecten pleuronectes set, is figured 
both from the North Atlantic and from the Gulf of 
