190 rROCEEDINGS OF THE MALACOLOGICAL SOCIETY. 



15. 1879. — Crowfoot, W. M., "On the Well-Sections at Beccles " : 



t.c., pp. 76-79. 



16. 1879. — Wood, S. V., "Second Supplement to the Monograph of 



the Crag Mollusca." (Palseont. Soc.) 



17. 1881. — Reeve, J., "Additional List, etc. " : Proc. Norwich Geol. 



Soc, vol. i, p. 110. 



18. 1884.— Bell, E., " Land- Shells in the Eed Crag" : Geol. Mag., 



vol. i, p. 262. 



19. 1890. — Eeid, C, "The Pliocene Deposits of Britain," 



pp. 228-230. (Mem. Geol. Surv.) 



1. Sphyeadium edentulum (Drap.). 



Vertigo edentula, Drap. : S. Y. Wood, Crag Moll., Suppt. II, p. 37, 

 pi. iv, fig. 6. 



Form, and Loc. — I^orwich Crag : Eramerton Common (!N^orwich Mus.); 

 Blake's Pit, Bramerton (Norwich Mus.). 



The only knoAvn examples of this species were found by Mr. Reeve. 

 The typical form is as yet unknown from any pre-holocene heds of 

 the continent, though the variety, considered there a good species and 

 known as Vertigo columella, Mts., is found in the lower pleistocene 

 of Moshach and in more recent heds. In this country both the type 

 and the variety are found in pleistocene deposits. 



2, Pyeamidula eysa (S. Y. Wood). 



Helix rysa, S. Y. Wood : Crag Moll., vol. i, p. 4, pi. i, fig. 1. 



Helix rufeseens, Penn., var. ? : J. Gwyn JeOreys, Quart. Journ. Geol. 



Soc, vol. xxvii (1871). p. 493. 

 Patula {Jamdus) ri/sa, S. Y. Wood : C. L. F. Sandberger, Land- & 



Sussw. Conch. Yorwelt, p. 737. 



Form, and Loc. — Red Crag : Walton (Saffron Walden Mus. type) ; 

 Waldringfield (Ipswich Mus.). 



The type of this species was found by Mr. G. S. Gibson inside 

 the mouth of an example of Chrysodomus antiquus, Linn., from 

 Walton ; whilst a second example was obtained by Mr. Canham from 

 the coprolite diggers at Waldi-ingfield. No other examples have been 

 met with. 



3. Pyramidula Suttonensis (S. Y. Wood). 

 Helix Suttonensis, S. Y. Wood : Crag Moll., Siippt. I, p. 2, pi. i, fig. 2. 



Form, and Loc. — Coralline Crag : Sutton (S. Y. Wood Coll., British 

 Museum). 



The single example of this form found by Wood still remains 

 unique. It is said by him to greatly resemble Pyramidula calathus 

 (Lowe) and P. hifrons (Lowe) from Madeira, and a recent comparison 



