A, EL. Verrill —Mollusca of the New England Coast. 235 
ADDENDA. 
After the preceding pages were mostly in type, an additional lot 
of mollusea, dredged in 1883, by the Albatross, mostly from off Cape 
Hatteras, was received from the National Museum. It contained 
many additions to the list. A few of the most important ones are 
here included. 
Octopus Carolinensis Verrill, sp. nov. 
Body, in the alcoholic specimen, rather small, somewhat oblong, 
obtusely rounded posteriorly and slightly emarginate beneath. Head 
large, and with the basal web larger than the body. Eyes large and 
prominent, occupying nearly the whole of the sides of the head, and 
in contact, or nearly so, dorsally. Entire surface of the body, head 
and upper surface of the umbrella and arms covered with minute but 
prominent verruce, which are somewhat larger and more crowded on 
the back than beneath. There are no cirri on the back nor above the 
eyes, but the upper eyelid is covered with small verrucz like those of 
the back, and is marked with radiating wrinkles. Siphon moderately 
long and rather slender. Arms angular, long, slender; the two lat- 
eral pairs about equal in length; the ventral and dorsal pairs about 
equal in length and slightly shorter than the lateral; the ventral 
arms are a trifle longer than the dorsal and appear to have the 
suckers a little larger. The web is more than one-fourth the length 
of the dorsal arms, and. extends farther out between the lateral arms 
than between the ventral or dorsal. A rather wide marginal mem- 
brane runs along the arms, even to the tips; it is most developed on 
the lower side of the lateral arms. The suckers are moderately 
large, rather closely arranged in two regular rows, and diminish very 
regularly from near the base to the very slender tips of the arms. 
Length of body, 22™"; its breadth, 20™™; breadth of the head, 
the same; length from the posterior end of the body to edge of 
web between dorsal arms, 45""; length of dorsal arms from mouth, 
64™™; of 2d pair, 72™™; of 3d pair, 70™™; of 4th pair, 667"; diameter 
of dorsal and lateral arms, 4°5""; diameter of largest suckers, 2™™. 
Color, in alcohol, rather dark purplish brown above, due to abund- 
ant, closely crowded, minute chromatophores; lower surface, yellowish 
white, rather thickly specked with orange and brown chromatophores. 
Inner surface of arms, suckers and eyelids white. 
Station 2109, off Cape Hatteras, in 142 fathoms (No. 35,673). 
One female. 
TRANS. Conn. ACAD., VOL. VI. 30 JULY, 1884. 
