A. E. Verrill— Marine Fauna of North America. 241 
where a considerable cluster can be seen when, as often hap- 
6™™"; diameter, 1°5 to 1° 
Taken on a trawl-line in 800 to 400 fathoms, about forty 
miles southwest from the N.W. Light of Sable Island, N. S, 
by George K. Allen, schooner “M. H. Perkins.” 
Ptilella borealis Gray = Pennatula borealis Sars= Pennatula 
grandis EKhr. (non Pallas) = Ptilella grandis Kor. & Dan. 
Several additional specimens of this species have been re- 
ceived from off Nova Scotia. 
with figures. They have shown good reasons, apparently, for 
adopting Gray’s genus, Ptilel/a, for this form, but inasmuch as 
hrenberg’s name (P. grandis) had been preoccupied, it ought 
not to be used for this species. 
CEPHALOPODA. 
Histioteuthis Collinsii, sp. nov. 
A very large and handsome species, with a broad thin web, 
extending between and nearly to the ends of the six upper 
arms. Tentacular arms about two feet long and slender, ex- 
panding near the end into a broad, long-oval, sucker-bearing 
portion “or club,” which is bordered by a membrane, widest on 
the outer edge; it ends in a tapering tip, on the back of which 
there is a thin crest-like membrane or keel, enlarging backward 
to the end, where it forms a rounded lobe. The most expanded 
Portion of the “club” bears five rows of suckers, with finely 
serrate rings ; two rows contain much the largest suckers, four 
or five in each, the more central of the two rows containing 
four suckers larger than the rest; outside of these are two 
_ Tows of medium-sized suckers, and along the inner edge of 
