ROEBUCK : CENSUS AUTHENTICATIONS. 12I 



The sculpture of this is similar, though the shell differs considerably 



in form, being much more abbreviate and oval. Mr. T. Iredale, in 



recently reviewing the New Zealand members of the RissoidcB as 



given in Mr. H. Suter's new work,^ has placed O. carnosa and O. 



candidissima, both of Webster, as the two true exponents of the 



European striata Montagu in that country, this being the original 



type of Onoba H. and A. Adams, 1852. We have compared O. 



cymatodes with this likewise, and are satisfied now with its generic 



position. 



♦•••♦ 



CENSUS AUTHENTICATIONS. 



By W. DENISON ROEBUCK, M.Sc, F.L.S., Hon. Recorder. 



All the records here given are based upon examples submitted to the official 

 authenticators : myself for slugs only; Mr. F. Taylor for PaltidestrinidiC ; and 

 Mr. John W. Taylor for all other species. 



Bedfordshire : Mr. E. D. Marquand has submitted Anodonta anatina, several 



Hyalhiia pitra var. nitidosa, two H. alliaria, and a few Pisidiiim amniaim, 



all from Bedford. 

 Berkshire : Mr. J. R. le B. Tomlin sent a half-grown Alilax sowerbyi from his 



garden in Reading, 6th June, 1916. 

 Gal^way South-East : Mr. J. K. Taylor has submitted numerous very small 



Planorbis crista var. imbricata, collected at Portumna by Mr. R. Welch. 

 Hunting-donshire : Mr. C. E. Wright has submitted Sphccrium lacustre, taken at 



Offord in 1904. 

 Kerry South : Through the kindness of Mr. A. W. Stelfox a small Hygroniia 



hispida var. hispidosa, taken at Cloghane, 25th Sept., 1910, has been seen. 

 Lancashire South : Mr. E. D. Marquand has submitted a few Physa heterosiropha 



from Droylsden. 

 Lancashire West: Mr. J. Davy Dean has submitted ZTcj/zV^Z/rt; .zVa/a, three of var. 



grisescens, Silverdale, Nov., 1904; Vertigo alpestris, Silverdale, 1905, several, 



and Berwick, Carnforth, May, 1908, several ; V. antivertigo, several from Keer 



Estuary near Carnforth, Oct. i6th, 1909 ; Clausilia /awma/a from Warton Crag, 



Carnforth, numerous, Sept., 1909; CI. cravenensis, same place and time, 



numerous and Yealand Redmayne, numerous, July 1906 ; also Pisidium cinereum 



from Lancaster Canal, Lancaster, several, 1904. 

 Co, Longford : We have seen by the benevolence of Mr. A.W. Stelfox an example 



ol Hygromia hispida var. albocincta^ taken at Tang Bridge, 5th April, 1910. 

 Lundy Island (Devon North): Mr. C. Upton has presented to the Voucher 



Collection a couple of Helix aspersa from this island. 

 Merionethshire : Mr. J. Davy Dean has submitted several examples of Helix 



hoitensis var. lutea 00000, 1 2045, ^^^ 12345, from margins of oak wood at 



Barmouth, July, 1908. 

 Notts. : Prof. J. W. Carr has submitted Acanthinula laniellata from the holocene 



deposit at Wheatley. The species still remains to be detected in a living slate 



in the county ; this and the case of drift shells at Creswell Crags being the 



only evidence of its being a Notts, shell. 



1 Manual of the New Zealand MoUusca, by Henry Suter, 1914. 



