202 BULLETIN OF THE 
CEPHALOPODA. 
Argonauta argo Linné. 
VERRILL, Trans. Conn. Acad., V. pp. 364, 420, 1881; VI. pp. 247, 265, pl. 28, figs. 1, 
la, 16, 1884. 
Da tt, Bulletin U. S. Nat. Mus., No. 37, pp. 174, 200, pl. 64, fig. 142; var. ameri- 
cana, pl. 43, figs. 1, 1a, 1b, and pl. 67, figs. 63, 63a, 63), 1889. 
A single fragment, Station 325, off Cape Hatteras, N. C., in 647 fathoms. 
Several shells and many fragments have been taken by the U. 8S. Commis- 
sion of Fish and Fisheries off the coast, from Martha’s Vineyard to Chesapeake 
Bay, in 64 to 2,620 fathoms, and several living specimens at the surface. 
Mr. Dall records this species as far south as the West Indies, and, doubt- 
fully, from Brazil. He gives the varietal name americana to all found off our 
coast, because of their broader form and fewer radial folds and cardinal 
nodules. 
In a series of perfect shells of moderate size, taken with the animal, I find 
marked variation in the prominence and number of the folds and nodules. 
Some of them could not be distinguished from authentic specimens of about 
the same size from Sicily, in the collection of the Peabody Museum of Yale 
University. It is only the large, full-grown specimens that seem to be 
narrow and more compressed in form. 
GASTROPODA. 
TOXOGLOSSA. 
Pleurotoma (Drillia) Dalli Verrivt and Smira. 
VeERRILL, Trans. Conn. Acad., V. p. 451, pl. 57, figs. 1, 1a, 1882; VI. p. 265, 1884. 
Drillia 2 Dalli Dall, this Bulletin, X VIII. p. 92, 1889; Bulletin U. S. Nat. Mus., 
No. 37, p. 98, pl. 60, fig. 66 a, 1889. 
One living and one dead specimen, Station 345, south of Martha’s Vineyard, 
in 71 fathoms. 
A rare species, found by the U. S. Fish Commission off the coast, from 
Martha’s Vineyard to Delaware Bay, in 94 to 188 fathoms ; not living below 
120 fathoms. 
Two varieties of this species— acloneta, without transverse sculpture, and 
cestrota, with conspicuous sculpture — are recorded by Mr, Dall as found from 
Georgia to the West Indies, in 170 to 294 fathoms, dead. 
Our specimens show marked variation in the development of the transverse 
sculpture, but there are none in which it is entirely wanting. 
