456 CRETACEOUS GASTROPODA 
be restricted to the group of shells called Murex. But the species referred to 
Eupleura by H. and A. Adams are said to be closely allied to the Wvrrerpz. 
A new genus has been.proposed (7bid., p. 58) for Fusus cinereus, Say, under 
the name of Urosalpine. 
a. Sub-family,—FULGURINZ, p. 112. 
Eephorea, Con., Am. Jour. Conch., II, 1866, p. 75, appears to belong to this 
sub-family. 
Gill published several valuable notes ‘‘on the genus Fulgur and its allies” 
(Am. Jour. Conch., ITI, 1867, p. 141), agreeing with Stimpson that this sub-family 
belongs to the Buccryzpz. The following genera are distinguished by that author, 
Fulgur, Montf., Sycotypus, Gill ex Browne, Tudicla, Link ex Bolten. Conrad 
publishes (7bid., p. 182) a Synopsis of the genera Sycotypus and Busycon, adding 
(loc. cit., p. 184) a new sub-genus, Sycopsis, for the tuberculated but not canali- 
culated species. Tortifusus, Conrad (ibid., p. 187) also belongs to this sub-family. 
XXV. HEMIFUSUS, Swainson, p. 118. 
1. Hemirusus cinctus, forbes, sp., Pl. X, Figs. 17 and 18. 
1846. Voluta cincta, Forbes, Trans. Geol. Soc., London, VII, p. 132, Pl. XII, Fig. 6. 
My suggestions regarding this species were fully confirmed. There are in the 
London Geological Society’s Collections at present three specimens of this species. 
The original has the shell very well preserved, but it had the aperture covered up 
by the rock. Upon removing this I found that there is no trace of any columellar 
folds, and Forbes must evidently have been mistaken in supposing that the spiral 
strie continue internally as folds; he could not have observed them. The two 
other specimens are casts, but neither of them shows a trace of columellar plaits. 
b. Sub-famity,—FUSINZ, p. 115. 
(FUsACcEA in parte, Troschel). 
Tn the proposed family Fuszp# Conrad quotes (Am. Jour. Conch., I, p. 16, ete.) 
the following additional new genera, Papillina, Levifusus, Lirofusus, Bulbifusus, 
Exilifusus, and in Check list eocene fossils, 1866, p. 19, Clavifusus, Turrispira, and 
Priscofusus. If the fossil shells upon which these genera are based were always 
perfectly well preserved somebody else, besides their author, would be able to recog- 
nize their characters, but as matters stand now it is hardly possible to trace out 
the signification of one-half of those so-called new genera. 
Siphonalia, A. Adams, Ann. mag. nat. hist., 18638, XI, p. 202. 
4, 'TRITONIDEA TRICHINOPOLITENSIS, Forbes, sp., p. 126. 
In the original specimen of Forbes the last varix is very distinctly thickened, 
resembling that of a Zritoniwm ; the species is, however, a true Tritonidea. 
Fusus Buchi, Miller, from the Senonien deposits of Aachen only differs by a 
somewhat larger number of transverse ribs. 
