286 Mr. H. Seeley on Cambridge Palceontology : — 



half an inch across, there are twenty-five. They are connected 

 at the suture with those of the whorl above, like the fringes 

 of Scalaria. 



The whorls are often more elevated than in the specimen 

 figured. It is remarkable that, whereas the shell is very rarely 

 preserved on other Gasteropods, an internal cast of this species 

 has never been found. The cast is cancellated. From the thin- 

 ness of the shell it is seldom found in specimens of more than 

 one whorl and a half long. 



Not rare. Coll. Dr. Cookson ; University ; J.Carter, Esq., &c. 



? Funis hrevis. PI. XI. fig. 8. 

 Shell an elongated cone. Whorls depressed, moderately inflated, 

 each ornamented with 16 obtuse, wide, elevated longitu- 

 dinal ridges, which become obscure on the base, and are sepa- 

 rated by spaces scarcely so wide. They are crossed by five 

 slightly elevated spiral ribs separated by rather narrower sul- 

 cations. The lowest rib is very wide. The base appears to 

 be smooth. Width of specimen 1 line, length 2 lines. 

 Unique. In the collection of G. D. Liveing, Esq. 



Scalaria angularis. PI. XL fig. 9. 



Shell elongated, conical, composed of about six elevated whorls, 

 which in the upper part of the spire are nearly flat, but gi'a- 

 dually become very moderately convex. Each of the low-er 

 whorls is ornamented with about ten or twelve straight lon- 

 gitudinal folds, which are wide, prominent, and rounded, with 

 comparatively flat intervening spaces. The upper whorls have 

 very few ribs. The last whorl is more inflated than the spire; 

 the ribs on the upper third of it are indistinct. The base 

 makes a sharp rounded bend with the side. The mouth is 

 not visible, but must have been nearly oval. 

 Very nearly related to Scalaria Rouxii (Pict. et Renv.), but 



well distinguished by the angular base, flatter whorls, fewer ribs, 



&c. 



Coll. J. Carter, Esq. ; University. 



Solarium Sedgwickii. PI. XI. fig. 10. 

 Shell suborbicular, very depressed, composed of about four 

 whorls. Whorls thick, convex above and below, with a sharp 

 medial angle forming the outline of the shell : this angle is 

 itself angulated or dentated -, with age it gets nearer the base. 

 The most tumid part of both the upper and under surfaces 

 is ribbed with transversely elongated elevated tubercles, sepa- 

 rated by spaces as wide : the tubercles of the under side are 



