524 PLIOCENE MOLLUSCA. 



with the one belonging to Mr. Tomlin, received from the Marchese cli Monterosato, 

 which I was allowed to figure as above, than with anything else I can find. 

 It seetns specially characterised by its distinct labial sinus. My specimen 

 belongs to the York Museum, where it is called Ckivatitla sp., and was found at 

 Selsey. It is possibly the same as that given by Alfred Bell in his paper of 1893 

 as Pleurotoma striolata} 



Genus ADMETE, Kroyer {continued from Vol. I, p. 411). 

 Admete Sheppardi, A. Bell. Plate XLIX, fig. 9. 



1919. Admete viridula, var. Sheppardi, A. Bell, The Naturalist, p. 57, fig. 1. 



Specific Characters. — Shell thin, oval, turreted ; whorls G, decidedly convex, 

 the last tumid, much the largest, two-thirds the total length ; ornamented by 

 inconspicuous longitudinal costae extending to the base, and by delicate but 

 distinct spiral ridges which cross them ; spire elongated, ending in a blunt point ; 

 suture fairly deep ; mouth ovate, angulate above ; canal short, bending to the 

 left ; outer lip thin, regularly curved ; inner lip forming a thin callus upon the 

 columella. 



Dimensions. — L. 15 mm. B. 8 mm. 



Distribution. — Not known living. 



Fossil : Bridlington. 



Remarks. — The shell figured under this name is one of three discovered by 

 Mr. A. Bell in Mr. Headley's collection of Bridlington fossils, which he considers a 

 new species. The sculpture is more delicate and less conspicuous than in the 

 typical A. vlridnla. Its discoverer now considers that it deserves a distinctive 

 specific name. 



Admete contabulata, Friele. Plate XLIX, figs. 10. 



1879—1901. Admete contahulata, Friele, Jahrb. Deutsch. Malak. Gesell., vol. vi, p. 276, 1879 ; Norsk. 

 Nordhav. Exp., Mollusca, pt. ii, p. 24, pi. viii, figs. 31, 32, 1886 ; pt. iii, p. 85, 1901. 



Specific Characters. — Shell minute, thin, strongly angulate, with a flattened 

 ledge below the suture; whorls 5, rapidly increasing; ornamented by well-marked 

 ribs which cross the ledge obliquely, dying out on the last whorl, and by spiral 

 ridges which are continuous to the base ; apex smooth, obtuse and mammiform ; 

 columella straight, with two inconspicuous folds; canal short; base pointed. 



Dimensions. — L. 8 mm. B. 5 mm. 



Distribution. — Recent ; Norwegian coast, Spitzbergen. 

 Fossil : Bridlington. 



1 Rep. Yorks. Phil. Soc.,p. 70, 1893. 



