452 CRETACEOUS GASTROPODA 
DIPSACus VETUSTUS, Forbes, sp., Pl. XXVIII; Fig. 27. 
1846. Oliva vetusta, Forbes, Trans. Geol. Soc., London, VII, p. 134, Pl. XII, Fig. 23. 
Dips. testa ovato-elongata, sub-fusiformi, levigata, sutwris callositate tectis ; 
apice acuminato; ultimo anfractu subinflato, antice truncato et late emarginato, 
fascia externa antice in labri margine denticulo paulo prominente disinente ; labio 
torto, oblique multiplicato, postice levi. 
Shell elongated, with an elevated and pointed spire, last whorl sub-cylindrical, 
very slightly inflated posteriorly; surface smooth, sutures covered by a callosity 
which extends upon the spire, enveloping the same to a large extent; aperture 
enlarged, anteriorly widely emarginated ; the external band terminates on the outer 
lip with a small but distinct tooth, the inner lip is strongly twisted, being in nearly 
three-fourths of the anterior portion strongly plicated or sulcated (see Fig. 27, a), 
and posteriorly smooth. 
The form and structure of the shell in general agrees with H. and A. Adams’ 
sub-genus Amalda, but the lip is more numerously plicated as in several of the © 
recent species of this sub-genus. 
Our figure represents Forbes’ original in double the natural size; the specimen 
has been found in beautiful preservation, after the adhering rock was removed. It 
is surprising how Forbes could have referred that shell to Oliva. 
Locality—Pondicherry, in light bluish sandstone; apparently rare, only the 
figured specimen having as yet been found. 
Formation.—Arrialoor group. 
IV. Family,—DOLIID 4, p. 61. 
( DotraceA, Troschel, Gebiss der Schnecken, I, p. 224). 
Conrad proposes a new generic name, Doliopsis, for a few fossil species which, 
judging from the figure given of Dol. quinquecoste in Am. Journ. Conch., I, 
pl. 10, fig. 15, would hardly indicate a distinction from Doliwm proper. (See also 
Am. Jour. Conch., I, p. 150). Syeotypus, Brown (Ficula, Swainson, Ficus, Klein) 
would most probably be better placed in this family than be kept distinct, as 
Sycorrrrp# (Troschel, Gebiss der Schnecken, I, p. 288). The tuberculated species 
of Sycotypus are sometimes difficultly separable from Hemifusus. 
Gabb (Pal. Calif. I, pp. 105 and 211) described from the cretaceous rocks of 
California two species under the name of Ficus, one being doubtful, F. cypreoides* 
(for it may be a young Cyprea), and the other, /. mammillatus apparently correctly 
belonging to Sycotypus. 
In the Check list of eocene fossils of N. America, 1866 (pp. 15-16), Conrad 
quotes in the family “ Srcorrrrpz” the following species from the lower eocene 
beds which are by others considered to be of cretaceous age; Perissolax Gabbii 
(Fusus Remondii, Gabb); Ficopsis Cooperii (Gabb) Conrad; Ficop. modestus, C.; 
Ficop. mammillatus (Ficus id., Gabb); Ficop. penitus, Conr.; Ficop. Remondii, 
* Mr. Gabb writes (June 1868) that he intends to propose a new genus for this species. 
