A, KE. Verrili— Mollusca of the New England Coast. 243 
while the columella-margin is regularly excurved. The inner lip is 
continued across the body-whorl in the form of a thin, closely adhe- 
rent callus deposit; the columella-margin, in advance of the umbill- 
cus, is distinctly thickened, but does not form a tooth, nor a distinct 
angle. The umbilicus is moderately large and deep, showing part of 
the whorls. 
Height of the largest specimen, 2°5™™; breadth, 4°5™™; length of 
aperture, 1°7™™; breadth, 2™™. 
Oft Cape Hatteras, station 2109, in 142 fathoms, sixteen specimens, 
all dead, but fresh (No. 35,733). . 
This species resembles Rotella striata D’Orb. It is a much more 
depressed shell than he figures, and the spiral lines appear to be 
much more numerous and finer, nor does his figures show any distinct 
thickening of the columella-margin. 
NovTes ON SPECIES PREVIOUSLY RECORDED. 
Mastigoteuthis Agassizii Verrill. 
Bull. Mus. Comp. Zool., vol. viii, p. 100, pl. 1, fig, 1; pl. 2, figs. 2, 3-3e, 1881. 
These Transactions, vol. v, p. 297, pl. 47, pl. 49, figs. 2, 3-3e, 1881. 
Additional specimens of this species were taken in 1883, at station 
2050, in 1050 fathoms; station 2072, in 858 fathoms; station 2076, 
in 906 fathoms. 
It had not previously been taken by the Fish Commission. 
Chiroteuthis lacertosa Verrill. 
These Transactions, vol. v, pages 299, 408, 450, pl. 47, figs. 1, 1b; pl. 56, figs. 1-17. 
Additional specimens of this species have been taken at station 
2074, in 1309 fathoms; station 2098, in 2221 fathoms; station 2094, 
in 1022 fathoms, and mutilated arms from a fish stomach, from station 
2099, in 2949 fathoms. 
Calliteuthis reversa Verrill. 
These Transactions, vol. v, p. 295, pl. 46, figs. 1-10, 1881. 
Additional specimens of this species were taken in 1883, at station 
2034, in 1346 fathoms; station 2039, in 2369 fathoms; station 2041, 
in 1608 fathoms (head only) ; station 2076, in 906 fathoms. 
The young specimen of this species, from station 2076, has one of 
the tentacular arms preserved. These arms have been absent in all 
the other specimens that I have examined, and seem to be very easily 
detached. In this example the tentacular arm is long, very slender, 
TRANS. Conn. AcaAD., VoL. VI. 31 JuLy, 1884, 
