J. 8. Qardner — British Eocene Land MoIIusca. 249 



of the Eocene pulmonate group. Those of less size are as a rule 

 of diminished interest, and most of the true Helices among them at 

 least, present characters recurring in so many widely scattered 

 species, that they are really distinctive of no particular geo- 

 graphical provinces and cannot be definitely assimilated to any one 

 of many existing species which may resemble them. Their detailed 

 description would thus present no new facts of interest in the 

 present research, and they are therefore merely enumerated or their 

 chief characteristics only remarked upon. 



Helix occlusa, Edwards. Tliis comes next in size to H. glohosa, 

 young shells of which it much resembles. Its widest diameter 

 is nearly 2 centimetres, and its height about 14 mm., the first whorl 

 ^ wider than the second. The five whorls are slightly angulated, 

 with polished test and a brown band running round the most salient 

 region, imperforate, and with the lip simple. I regard all the species 

 from the Bembridge Limestone as the immature shells of H. glohosa, 

 and should limit the species to those from the Headon Limestone. 

 It very strongly resembles H. incerta, Fer., of St. Vincent and the 

 West Indies, without however, exhibiting complete identity. H. 

 Woodwardi and H. Etheridgi, MS. of the Edwards' collection, are 

 probably also young of H. gobosa. 



H. Veotiensis, Edwards, with which should be united H. cocciphera 

 and H. trochila, MS. species in the same collection, is an almost 

 turbinate and small shell with slightly elevated spire and five 

 rounded whorls, strongly reflected lip, tumid base in which only 

 one whorl is visible, with small umbilicus, finely striate and punctu- 

 lated polished test. The dots are only faintly visible when magnified 

 15 diameters, and are not present on the most perfect and figured 

 type specimen even when magnified 40 diameters. The greatest 

 diameter is 1 centimetre, and the height 5 mm. It occurs in the 

 Bembridge and Headon Limestones at Sconce, and nearly resembles 

 H. fallaciosa from Ceylon. It is compared to H. rufescens bj' Edwards. 



H. D'Urbani, Edwards, is a shell of very similar outline, but is 

 distinguished by its thin and unreflected lip. To this should be 

 added II. Morrisii, H. Keepingi, H. omphaloides, MS. Edwards. 

 It is placed by Sandberger in the sub-genus Hyalinia, Agass., of 

 Monfort's genus Zonites. 



H. ScoNCiENsis, MS. Edwards, possesses the same contour, but has 

 a larger umbilicus, and is somewhat strongly and obliquely ribbed. 



H. TROPiFERA, Edwards. A very rare, small shell, from the 

 Bembridge Limestone, with depressed and perfectly angulated spire, 

 tumid beneath, the cast displaying a large umbilicus and semilunar 

 aperture. H. Coquandiana, Matheron, of the Palteotherium Lime- 

 stone of Aude, in the South of France, seems indentical with it. It 

 is compared by Edwards to H. lapicida, recent, of Europe ; but it 

 far more resembles H. tricotropsis, Pfr., from China, as well in size 

 as contour. The largest of three specimens measures 1 cent, diameter, 

 and 6 mm. in height. 



H. OMPHALUS, Edwards, a much smaller shell with 5 very gradually 

 diminishing rounded whorls, very slightly elevated spire, with large 

 umbilicus in the cast, permitting several of the whorls to be seen, 



