194 PEOCEEDINGS OF THE MALACOLOGICAL SOCIETY. 



Two specimens found by Mr. Canham are the only ones known of 

 pliocene age, its earliest records on the continent being from the 

 lower pleistocene of southern Germany at Mosbach and the middle 

 pleistocene of Cannstadt, Weimar, and Mulhausen in Thuringia. It is 

 a common English pleistocene fossil, and is, of course, extremely 

 abundant at the present day. 



13. Pupa cyLiNDEACEA (Da C). 



Form, and Loc — Norwich Crag : Blake's Pit, Bramerton (Norwich 

 Mus.) ; Yarn Hill (R. E. Leach). 



The geological record of this species is indeed very incomplete. A 

 single example was found by Dr. Prank Corner in the upper 

 pleistocene of Ilford, and it was common at Copford, but the age of 

 this latter deposit is uncertain. On the continent it is as yet 

 unrecorded. We have only seen a single example from the pliocene, 

 and this was found by Mr. J". Beeve. 



14. Pupa MuscoEtrM (Linn.). 



Pupa muscorum, Miill. : S. V. Wood, Crag Moll., Suppt. I, p. 3, pi. i, 



fig. 7. 

 Pupa marginata, Drap. : J. Gwyn Jeffreys, Quart. Journ. Geol. Soc, 



vol. xxvii (1871), p. 49,3. 



Form, and Loc. — Bed Crag : Butley (Brit. Mus. and Ipswich Mus.). 

 Norwich Crag: Blake's Pit, Bramerton (Norwich Mus.) ; Yarn Hill 

 (B. E. Leach). 



The example figured by S. Y. Wood, which was found by 

 Mr. A. Bell, is now in the British Museum (Natural History), and 

 there is an immature specimen from the same locality in the Canham 

 Collection at the Ipswich Museum. Specimens of undoubted pliocene 

 age occurred in a boring at Amsterdam at a depth of 230 metres.^ 

 Elsewhere on the continent it is unknown in any bed of earlier age 

 than the middle pleistocene, it having been foimd at Wiesbach, 

 Cannstadt, and Wiesbaden. 



15. Clausilia pliocena, S.Y.Wood. 



Clamilia pUocena, S. Y. Wood : Crag Moll., Suppt. I, p. 188, 

 addendum pi., fig. 22. 



The single immature example now in the British Museum (Natural 

 History), fi'om which this species was described, still remains unique. 

 It certainly cannot be referred to any living English form. Dr. J. Lorie 

 has recorded ^ two examples from a boring at Diermerbrug, Holland, 

 at a depth between 230 and 234 metres, but not having seen the 

 examples it is impossible to say if this determination be correct or not. 



1 Dr. J. Lorie, " Contrib. a la Geol. des Pays Bas " : Bull. Soc. Beige Geol., 



torn, iii (1889), p. 436. 

 - Tom. cit., p. 43.5. 



