‘ eo” " 
+ 
* 3 a 
100 "Desrpion of some New Species of Fossil Shells. | 
being the first Triton observed in the ‘Claiborne deposit. The 
mouth is ‘2 of an inch in length. 
s . FAMILY PURPURIFERA. 
Genus Buccinum. ig Nite a 
B. parvum. Pl. . fig. 17. 
B. testa sub-turrita, levi, polita, sub-crassa ; spira acuta ; anfrac- 
tibus , planulatis; suturis impressis ; basi striata ; abr in- 
tus striato ; apertura sub-quadrilaterali, canaliculata. 
Shell sub-turrited, smooth, polished, somewhat thick ; spire 
acute ; whorls , flat ; sutures impressed ; base striated ; outer 
lip striate within ; mouth sub-quadrilateral, channelled. 
Length Breadth ‘07 of an inch. 
Remarks.—In this shell the outer lip has five strie, but, asl 
have only one specimen, I cannot determine whether this is 4 
constant character. The columella appears plicate, from the con- 
tinuation of the strie of the base. ‘There is nothing very re 
markable about this little species, although it is suficiently m ree 
ed to characterize it as new. 
Genus Trresra.—Lamarck. 
T. constricta. PI. 1, fig. 18. 
T. testa subulata, attenuata, crassa, transverse striata, striis tri- 
bus, longitudinaliter lineat&; spira acuta, valdé elevata; anfracti- 
bus , planulatis ; suturis impressis; columella levi; apertura 
sub-quadrilaterali ; canale parvo, reflexo. 
Shell subulate, attenuate, thick, transversely striate, with three 
striz, longitudinally lined; spire very elevated, acute; whorls 
, flat; sutures isipremeed ; ; columella. amepth.; mouth sub- 
quadristerst channel small, reflexed. 
Length Breadth i of an inch. 
Remarks.—But two specimens of this shell, and both with the 
spire very much fractured, have come under my observation, yet 
their shape is such as to leat no doubt in my mind that the spire 
is acute and very attenuate, in which it resembles most Terebr®- 
It approaches T’. venusta, Lea, but differs from it in its transvers? 
striee, its want of longitudinal ribs, and in the channel bee more 
reflexed. 
e 
