326 PROCEEDINGS OF THE MALACOLOGICAL SOCIETY. 



ON SOME NEW SPECIES OF BRITISH EOCENE GASTROrODA, 



wrrn remarks on two forms already described. 



By R. BuLLEN Newton, F.G.S., etc. 

 Read June Ut/i, 1895. 



PI. XXII. 



Abottt the year 1850, the late Mr. Edward Charlcsworth, then 

 occupying the position of Curator to the York Museum, interested 

 himself in the study of some of the more minute forms of En<;lish 

 Tertiary Mollusca which he had obtained mainly from the Upper 

 Eocene beds of Barton, in Hampshire. Under the auspices of the 

 British Xatural History Society of York, he issued single specimens of 

 these small shells to the public, in glazed frames, accompanied by well- 

 executed and enlarged lithographic drawings prepared from nature by 

 a Mr. "William Smith. The material thus selected represented not 

 only described species, but also included others which were entii'ely 

 new, and to which certain names w^ere attached, descriptions being 

 promised in due course to substantiate the manuscript determinations. 

 These descriptions, however, never appeared, so that the unpublished 

 names, although largely quoted in the literature of this country and 

 abroad, retain up to the present time very little scientific value. 



Some Gastropods forming part of this series, formerly in the 

 possession of the late Mr. Frederick Harford, and now in the British 

 Museum, have recently been examined, with the result that seven, 

 new species have been determined, belonging to various genera, whilst 

 two others have been recognized as established forms. Thinking 

 that perhaps Charles worth's type specimens might be in the York 

 Museum, I communicated with the Keeper of that institution, Mr. M. 

 Platnauer, who most obligingly sent me all the specimens preserved 

 there for examination. This material, however, did not appear to 

 include these types any more than that acquired by the British 

 Museum; and since the specimens had somewhat deteriorated, I 

 have drawn up the following descriptions from better preserved 

 examples of the same shells in the Edwards and general collections 

 in the British Museum, and have had new illustrations prepared 

 showing more accurate details than those originally issued by the 

 British Natural History Society of York. Care has been taken to 

 adopt Charlesworth's specific names, except where some valid reason 

 has necessitated their rejection. 



Odostomia. likieeka, n.sp. PI. XXII, Figs. 1, 2. 



Odostomt'a turgida, Cliarlesworth MS., Morris, Cat. British Fossils, 



1854, ed. 2, p. 2G5 {non Sars, 1878). 



Shell smooth, turriculate, ventricose ; apex obtuse; composed of 



four or hve moderately wide whorls, the last of large size and convex, 



the others with rather dei^'esscd sides ; suture oblique, canaliculated ; 



