GASTEROPODA. 37 



V 



PALUSTRIS, Mutter. 2nd Sup., Tab. IV, fig. 2 a, 6. 



BUCCINUM PALUSTRE, Miill. Verm. Tert. et Fluv., vol. ii, p. 131. 



Locality. Fluvio-marine Crag, Bramerton. 



The shell figured and described in ' Crag. Moll.,' vol. i, p. 7, Tab. I, fig. 9, as 

 L. palustris is, I think, there erroneously referred, as it more resembles the American 

 species or variety called elodes, to which I would now refer it. I have received from 

 Mr. Reeve a specimen, of which the one above referred to is a representation, and which, 

 I think, is the true form of L. palustris. 



LIMNJEA PEREGRA, Mutter. 2nd Sup., Tab. IV, fig. 4. 



BUCCINUM PEREGRUM, Mull. Verm. Hist., pt. xi, p. 130. 



Locality. Fluvio-marine Crag, Bramerton. 



The shell now figured is the true form of the common variety of this species. The 

 one previously figured in ' Crag Moll.,' Tab. I, fig. 7, resembles the northern form 

 called L. Fingelii by Moller, to which I will refer it. Fig. 8 of Tab. I of ' Crag 

 Moll.,' there called L. truncatula (?), corresponds with L. Holbottii, Moller, and I have 

 not seen the true form of truncatula from any East Anglian bed. 



PUPA EDENTULA, Draparnaud. 2nd Sup., Tab. IV, fig. 6. 



PUPA EDENTULA, Drop. Hist. Moll., p. 52, pi. iii, figs. 28, 29. 



Locality. Fluvio-marine Crag, Bramerton. 



This has been obtained by Mr. Reeve, and he tells me it is from the " Scrobicularia 

 bed " at that locality. 1 The generic name of Vertigo is now given to this shell by some 

 authors in consequence, it is said, of a difference in the animal, Vertigo having only two 

 tentacles, while that of Pupa has four ; but there is nothing in the shell to denote a 

 generic difference, and I have therefore retained its original name. Our present shell is 

 not rare in the newer Pliocene Freshwater beds, but it has not been hitherto given as a 

 Crag shell, so far as I am aware. 



1 See note, p. 35. 



