294 A. E. Verrill—Cephalopoda of North America. 
able tubercles of the ventral surface, mostly have five ridges 
Targioni-Tozz zetti, P. catenulata is distinct from P. tuberculata. 
If so, our species should bear the former name. 
Octopus Bairdii Verrill. (Baird’s Octopus.) 
; 
39, Pl 
1 to 10, (¢) PL. xvii, figs. 8* to 84 (dentition and jaws), 1878, Tryon, Man. 
ng he “ ee 116, Pl. '32, figs. 37, 38 (description and figures from the papers 
if 
In addition to the localities previously given, this species has 
been taken in numerous localities off the coasts of Massachu- 
setts and Nova Scotia, by the dredging parties of the U. 8. 
Fish Commission, in 1877, 78 and ‘79. It is common in 50 to 
150 fathoms, both on muddy ind on hard bottom. Both sexes 
occur, the females less frequently. The sexes show but little 
difference, except the hectocotylized third right arm of the male. 
The Gloucester fishermen have brought in several specimens 
from the banks, off Nova Scotia and Newfoundlan 
Professor G. O, Sars has taken it, off the Norwegian coast, in 
60 to 300 fathoms. 
Octopus piscatorum Verrill. (Fishermen’s Octopus.) 
is Journal, vol. xviii, p. 470, Dec., 1879. 
Two specimens of this species, both females, have been ob- 
tained. The first was ot LeHave Bank, off Nova Scotia, 
schooner ““M. H. Perkins,’ Seu, 1879; the second was taken 
by Capt. David Campbell and crew, of the schooner “Admiral, 
near the Grand Bank, in 200 fathoms, Dee., 1879. 
his species resembles O. Grénlandicus, ‘of which the males 
alone have been described, and may prove identical. ? 
Octopus obesus Verrill. (Stout Pe ca 
This Journal, vol. xix, p. 137, Feb., 1880. 
One male, taken in 160 to 800 Pine east of ane bas pi 
N.§., by Chas. Ruckly, of the schooner ““H. A. Dun 
Octopus lentus Verrill. (Soft oe 
This Journal, vol. xix, p. 138, Feb., 
One specimen only, a female, presented by Capt. Samuel 
Peeples and crew, of the schooner “H. M. Perkins.” It was 
taken near LeHave Bank, N.S., in 120 fathoms. 
Stauroteuthis syrtensis Verrill. (Webbed devil-fish.) 
This Journal, vol. xviii, p. 468, Dec., 1879. 
