1862.] MR. W. H. PEASE ON NEW MARINE SHELLS, 24] 
minute et irregulariter squamatis: anfr. convexis, ad suturas 
squamis prominentibus erectis ordinatim ornatis: anfractu 
ultimo parte inferiore basin versus contracto: rufescenti-fusca, 
liris transversis super costas luteseenti-fuscis, squamis albis : 
apertura alba. 
Shell fusiform, turreted ; body-whorl somewhat ventricose, longi- 
tudinally ribbed; ribs seven or eight, transversely ridged; ridges 
somewhat distant, becoming nodulous on the longitudinal ribs ; inter- 
stices finely ribbed, transversely and very finely striated longitudi- 
nally, squamate, more particularly at the base of the body-whorl. 
Whorls ornamented at the sutures with a row of prominent, erect, 
squamate scales or spines ; lower part of last whorl contracted towards 
the base. Colour reddish brown; nodulous portion of the transverse 
ridges yellowish white; scales and spines white; aperture white. 
Length 45, breadth 20 mill. 
PISANIA STRIGATA. 
T'. elongata, transversim costata; costis planiusculis, superne sub- 
angulatis, transversim interdum striatis; striis wrregularibus, 
elevatis: anfr. 7-8, convexis, anfractu ultimo prope labrum in- 
crassuto : labro crenato, canali brevi: apertura longitudinis 
dimidium teste haud equans : castaneo-fusco et albo maculata 
et fasciata, apertura alba. 
Shell elongate, transversely ribbed ; ribs depressed, regular, plane 
and somewhat angulated at their upper edge, and sometimes marked 
transversely with a few elevated strice or fine ribs. Whorls seven or 
-eight, convex ; the last with a prominent varix near the edge of the 
outer lip; edge of lip crenate ; canal short, slightly twisted ; aper- 
ture less than one-half the length of the shell. Mottled and banded 
with dark chestnut-brown and white ; grooves between the ribs dark 
brown ; aperture white. 
Length 37, breadth 15 mill. 
AMPHIPERAS SEMISTRIATA, 
T. ovata, subgibbosa, extus intusque candida, nitida, transversim 
striata; stris undulatis, ad dorso evanidis ; labro lirato, liris 
parvis ; columella rotundato-convexa : apertura flecuosa, canali 
brevi. 
Shell ovate, somewhat gibbous, white, shining, transversely striated ; 
striee undulated and obsolete on the back, somewhat roughened lon- 
gitudinally by fine irregular strice ; ridges on outer lip small; inner 
lip roundly convex on base ; right margin slightly thickened ; aper- 
ture flexuous, canal very short. 
Length 123, breadth 74 mill. 
EMARGINULA CLATHRATA, 
T.. ovata, alba, costis concentricis et radiantibus clathrata, in- 
terstitiis profundis ; apice antico ; labro crenato. 
Proc, Zoou, Soc.—1862, No, XVI. 
