1862.] MR, W. H. PEASE ON NEW SPECIES OF SHELLS, 243 
Shell slenderly subulate, elongate, white, polished, straight ; 
whorls numerous, plane, suture very faintly impressed; aperture 
small, acutely ovate; columella slightly callous. 
Length 11, width 23 mill. 
ENGINA TUBERCULOSA. 
T. fusiformis, utrinque attenuata; spira subacuminata, acuta, lon- 
gitudinaliter tuberculato-costata ; transversim lirata, livis su- 
perne nodosis, interstitiis subtilissime striatis, nigra; anfractu 
ultimo albo fasciato; apice albido; columella postice corrugata, 
denticulis parvis: apertura alba, longitudinis teste dimidium 
haud equans. 
Shell fusiform, attenuated at both ends, spire somewhat acumi- 
nate, acute ; longitudinally tuberculately ribbed, transversely ridged, 
ridges forming tubercles or nodules on the longitudinal ribs. Inter- 
stices very finely striated ; aperture less than one-half the length of 
the shell ; columella-lip corrugate or plicate posteriorly ; teeth small. 
Colour black, last whorl encircled with a white band; aperture and 
apex white. 
Length 9, width 4 mill. 
The smallest species of the genus with which we are acquainted. 
We give the size of a large specimen. We have received it from 
several localities, and find it constant in shape and sculpture. The 
painting varies, the lower part of the last whorl and the spire being 
more or less spotted with white in some specimens, 
EuCHELUS MACULOSUS, 
T’. parva, conico-globosa, umbilicata, nitida, tenui, concentrice 
irregulariter costata, longitudinaliter subtilissime striata: alba, 
costellis maculis rubris subdistantibus maculatis. 
Shell small, umbilicate, somewhat conically globose, rather thin, 
shining, concentrically irregularly ribbed, longitudinally very finely 
striated. Colour white; transverse ribs spotted somewhat remotely 
with red. 
Breadth 2, height 12 mill. 
10. Descriptions or New Species OF SHELLS FROM THE 
Paciric Istanps. By W. Harrer PEase. 
CLATHURELLA BICARINATA. 
Shell turreted, white, decussated throughout with longitudinal 
and transverse raised strize. Whorls six, the last ornamented by two 
very prominent keels; the interstices plane ; angulated at the suture ; 
Upper whorls carinate at their centre and angulated at the suture, 
furnished with a single prominent keel; sutures deep, sinus in the 
form of a narrow slit, terminating in a round aperture. Aperture 
less than one-half the length of the shell; canal short, broad, 
slightly recurved. 
Hab, Kingsmill Islands. 
