DESCRIPTION OF SHELLS. 185 
Fusus incultus. (Tab. VII. fig. 32.) 
Spec. Cuar.—Fusiform, with a long narrow beak, transversely striated, and 
costated near the apex ; striz obsolete near the middle of the whorls, which are 
concave above and convex below; the last whorl large, ventricose ; aperture 
ovate, with a short canal above and long canal running into the beak. 
Three times as long as wide. 
Whorls six or seven, rather short, and in this respect different from the young 
of Fusus longevus, to which in other points this shell bears a resemblance. It 
has a peculiar blunt and unfinished aspect by which it may be at once recognized. 
Fusus errans. (Tab. VII. fig. 31.) 
This shell varies in different localities ; the specimens found at Primrose Hill 
have the last whorl less conical and more convex than either the Barton or 
Bracklesham individuals, and are also more coarsely striated. The variety (tenui- 
striata) with fine striz is peculiar to Bracklesham. 
It grows considerably larger than the specimen figured. 
Fusus undosus. (Tab. VII. fig. 39.) 
Spec. Cuar.—Subfusiform, with a short base, deeply striated transversely, 
longitudinally costated or undulated ; spire small; whorls seven, convex ; beak 
short, slightly curved; ribs gently raised, straight; striz sharp, the spaces 
between them flat, unequal in breadth but all narrow; aperture almost round, 
with a short canal; outer lip striated within. 
Length double the width. 
An elegantly formed rounded shell, much like Fusus regularis, but smoother 
in its contour, and having a shorter and curved beak. 
A good example of Montfort’s genus Trophon, which has lately been adopted 
by Mr. S. V. Wood. 
Fusus parvirostrum. (Tab. VII. fig. 30.) 
Srec.Cuar.—Subfusiform-turrited, transversely striated, iongitudinally ribbed ; 
whorls numerous, keeled in the middle ; ribs eight or nine, straight, prominent, 
and sharp in the middle ; beak narrow, short and straight. 
About three times as long as wide. 
