} 
: 
. 

A. E. Verrill— Catalogue of Marine Mollusca. 501 
Shoals. Probably the last-named locality is erroneous, and perhaps 
both are so. The short variety of S. Stiémpsonii may have been 
intended. 
The third species, S. pygmceus,* is very abundant at moderate 
depths, from off Chesapeake Bay to Nova Scotia. 
Several Arctic species, not mentioned in Gould’s Report, have 
been discovered in the deeper parts of the Gulf of St. Lawrence, and 
in the deep channel near the mouth of the St. Lawrence River, at 
Murray Bay, ete., by Dr. J. W. Dawson, Mr. J. F. Whiteaves, and 
others, and also on the Grand Bank of Newfoundland. 
The researches of the U. 8. Fish Commission have added at least 
five species, of the Sipho-group, to the fauna of the New England 
coast. Two of these (S. celatus V. and 8S. glyptus V.) are small, 
transversely ribbed species, and may belong to a special division, or 
subgeneric group. 
Sipho pubescens Verrill, sp. nov. 
Neptunea propinqua Verrill, Amer. Journ. Sci., xvi, p. 210, 1878. 
Neptunea (Sipho) propinqua Verrill, Amer. Journ. Sci., xx, p. 391, Nov. 1880; 
Verrill, Proc. U. S. Nat. Mus., iii, p. 370, 1880 (non Alder, Jeffreys, etc.) 
PLATE XLIIJ, FIGURE 6; PLATE LVII, FIGURE 25. 
Shell rather short, fusiform, regularly tapered, obtuse at the tip of 
the spire, with the suture deep and canaliculate. Whorls about 
seven, broadly rounded and somewhat flattened, narrowly but dis- 
tinctly channeled at the suture, Sculpture, over the whole surface, 
regular and numerous, shallow, spiral grooves or sulci, separated by 
slightly raised, flat, or somewhat rounded cinguli, usually, but not 
constantly, wider than the sulci; on the penultimate whorl there are 
about 14 to 16 of the sulci; slight, but distinct, curved lines of growth 
cover the surface. Aperture narrow, ovate-elliptical; outer lip 
broadly and regularly rounded, the edge receding in the middle in a 
broad, concave curve; at the base of the canal the lip is decidedly 


* For this species I established the subgeneric group, Neptwnella, in 1873, and after- 
wards (1879) changed the name to Siphonella, the former having previously been used 
by Gray and by Meek. The principal reason for this separation was the character of 
the odontophore (pl. 57, fig. 21), contrasted with that of S. Bernicensis, taken as the 
type of Sipho. It cannot well be separated, even as a subgenus, from S. Islandicus 
and S. gracilis, by the dentition alone, according to the figures of these, given by G. 
O. Sars. The subgenerie group, Siphonorbis Mérch, based on the character of the 
nucleus, may be identical with Siphonella. The latter name also appears to have been 
preoccupied, and must be dropped. : 
