A. FE. Verrill— Mollusca of the New England Coast. 399 
In all our ten localities between 2000 and 3000 fathoms, the 
bottom has been “ globigerina ooze.” We have never met with the 
“red clay” which ought to occur at such depths, according to the 
observations made on the cruise of the Challenger. 
The temperatures observed with the improved thermometers now 
used on the Albatross were between 36°°4 and 37°:00 F., in 2000 to 
2600 fathoms. But temperatures essentially the same as these were 
also taken in 1000 to 1500 fathoms, and even in 965 fathoms one 
observation gave 36°°8 F. It follows from these observations that 
nearly the minimum temperature is reached at about 1000 fathoms 
in this region. 
CEPHALOPODA. 
Ancistrocheirus megaptera Verrill, sp. nov. 
PLATE XLII, FIGURES 1, la. 
Body small, rather short, with an acute posterior end, extending a 
little beyond the posterior border of the fin. Fins very large, thick 
and strong, attached nearly the entire length of the body, and together 
forming a broad, rhombic figure, with the outer angles behind the 
middle; anteriorly the attachment of the fin does not reach quite to 
the edge of the mantle, and the front edge forms a slight rounded 
lobe in front of the attachment ; posteriorly the fins are nearly united, 
across the back, but leave the acute, posterior tip of the body free for 
a short distance. The front edge of the mantle recedes in a broad 
curve ventrally, but has slightly prominent lateral lobes and a broad 
obtuse dorsal angle, which extends farther forward than the lateral 
ones. The head is rather large, with large eyes, furnished with thin 
free lids. The siphon is rather large, with two small dorsal bridles. 
The connective cartilages on its base are rather small, ear-shaped, 
much as in Ommastrephes. The arms are rather large, not very 
unequal in size, the dorsal ones slightly smaller than the others; all 
are unusually rounded and most of them, in our specimen, have lost 
their tips. They all bear two alternating rows of small, prominent 
sharp claws, which are not very closely arranged. The inner face is 
not separated from the sides by a distinct margin. The tentacular 

upon the precise locality of such relics is very curious. Otherwise than in this 
instance we have rarely found in deep water any human traces except coal cinders 
from steamers. 
TRANS. CONN. Acap., Vou. VI. 50 APRIL, 1885. 
