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A. E. Verrill— Catalogue of Marine Mollusca. 499 
derived from the bank-fisheries, and his specimen may have come 
from the Grand Bank. 
Neptunea, Tritonofusus and Sipho, 
Fusus (pars) Brug.; Lamarck, An. sans Vert.; Gould; Jeffreys, ete., (non Fusus 
; Klein, 1753, nec Lam., 1801.) 
Neptunea Bolten, Mus. Bolt., 1798 (N. antiqua). 
H. and A. Adams, Genera of Ree. Mollusea, i, p. 79, 1858. 
Chrysodomus Swainson, 1840 (C. antiquus). 
Atractus Agassiz (A. corneus), 1837 (non Lap., 1833, nee Wagl., 1828). 
Sipho (pars) Klein, 1753; Mérch, Catal. Yoldi, i, p. 104, 1852; (subgenus) Moreh, 
Nat. Bidr. Beskr. Grénland, p. 85, 1857 (#. Islandicus, ete.), (non Brown, 1827). 
Tritonofusus (subgenus) Morch, op. ult. cit., p. 85, 1857; Catal. Moll. Spitzberg, p. 
15, 1869 (F. Kroyeri, F. latericeus). 
Neptunella (subgenus) Verrill, Amer. Journ. Sci., vi, p. 439, 1873 (N. pygmeus) ; 
Rep. Invert. Vineyard Sound, p. 345 [639], 1874 (non Gray, nec Meek, 1864, 
fossil). 
Siphonella (subgenus) Verrill, Preliminary Check List, p. 20 (S. pygmceus), 1879 
(non Macq.). 
Volutopstus (subgenus) Mérch, Nat. Bidr. Beskr., Gronland, p. 85, 1857 (#. Norve- 
gicus). 
The name, Fusus, was definitely restricted by Lamarck, in 1801 (Syst. des An, 
sans Vert., p. 82, type, / longicauda), to the tropical group belonging to the Fasciola- 
ride (Colus auth.), and for that group it should be retained. 
This group undoubtedly includes three or more genera, but all these 
generic groups have not yet been clearly differentiated, nor satisfac- 
torily defined. Among our species, we have two that belong to 
typical Neptunea, viz: W. despecta, var. tornata, (Gould), and WN. 
decemcostata. The former was known to Gould only from the Grand 
Bank, and northward, but we dredged it, in 1881, off Martha’s Vine- 
yard, station 949, in 100 fathoms. 
From the Gloucester fishermen the typical form of W. despecta has 
also been received (lot 861). In this, the spiral carinze are much less 
prominent than in the var. tornata. 
Of the group called Sipho by Méirch, G. O. Sars, and others, we 
have several species, three of which were known to Gould, viz: S, 
Stimpsonii (Morch)* = Fusus Islandicus Gould (non Linné); &. ven- 

* Morch, in Faunula Moll. Ins. Feeroénsium, Vid. Med. Nat. Forh., p. 83, 1867, named 
this species thus: “Husus Stimpsonii (¥. corneus Say, Am. Conch.)” This is, so far 
as known to me, the first distinctive name for the species. The name, /. curtus, was 
given by Jeffreys the same year (Brit. Conch., iv. p. 336, 1867), but it was then applied 
particularly to a fossil form, which may or may not be the same as a certain ‘“‘ North- 
American form” referred to in such an indefinite manner that no one but the author 
TRANS, CONN. AcAD., VOL. V, 60 JUNE, 1882, 
