34 DTrPTDET GASTEROPODA. 



that we suspect it may belong to this latter genus ; the columella 

 unfortunately is hidden in all our specimens. 



The spine is conical, but the apex slightly blunted ; the whorls 

 five, slightly convex. 



There are seven specimens in the Museum. 



Locality — Dundry. Inf, Ool. 



TEOCHUS -WINWOODI, n. sp. PL 2. fig. 8. 



Length 16 mm, (if complete). Greatest breadth, 13 mm. 



Shell pyramidal, acute ; whorls concave, with two prominent 

 keels, one close to either sutui^e. The whole surface of the shell 

 is ornamented with fine elevated ridges, both longitudinal and 

 obliquely transverse; these cross one another, and produce a 

 minutely granulated appearance ; where they cross the keels they 

 are stronger, and form tubercles or costae. The last whorl has 

 two keels, separated by a deep narrow concave interspace, in 

 which are tubercles as on the rest of the surface. The mouth is 

 trapezoidal; umbilicus closed. The base is also similarly 

 tuberculate. 



There is some resemblance to Quensted's figure of T, lijugatus 

 (Jura. tab. 65, fig. 9.; 



This species is named after the Rev. H. H. Winwood, Hon. 

 Sec. of the Bath Nat. Hist, and Arch. Eield Club. 



There is only one specimen in the Museum. 



Locality (probably) — Dundry. Inf. Ool. 



MONODO]!TTA L^YIGATA, Sowerby. 



1818 Nerita laevigata. Sow. Min. Conch, pi. 217, fig. 1. 

 1854 Monodonta laevigata, Morris. Cat. Brit. Poss. 



p. 258. 



