390 Zoological Society. 



" Descriptions of some Species of Shells apparently not hitherto 

 recorded: by W. J. Rroderip, Esq., V.P.Z.S., F.R.S., &c." were 

 read. The reading of the communication was accompanied by the 

 exhibition of specimens of the several species referred to in it : 

 viz. 



Spondylus albidus ; Voluta Beckii and Cominna ; Conus Adam- 

 sonii ; Purpura Gruvesii; and Bulinus Cricktoni, injiatus and 

 Pusio. 



The characters, &c., of these shells are given in the " Proceed- 

 ings " of the Society, No. XL,, from which we retain the following : 



Bulinus Crichtoni. Bui. testa fusiformi, longitudinaliter costatd 

 et corrugatd, costis rugisque validis, subalbidd maculis spadiceis 

 notatd; labio rosaceo-violaceo, labropallidiore, expanso, subreflexo: 

 long. 3 (circiter), lat. 1-^poll. 



Hah. ad Ambo juxta Huanuco Peruvise. 



Mus. Brod. 



This curious shell, which at first sight reminds the observer of 

 Bulinus Labeo, Brod., (Zool. Journ., vol. iv. p. 222,) brought home 

 by Lieut. Maw, R.N., and presented by him to the Zoological Society 

 of London, from whose Museum it has been stolen*, differs strongly 

 from it, as will be seen by a reference to the figure in the ' Zoolo- 

 gicalJournal' which is very accurate, excepting that the longitudinal 

 lines in the engraving are rather too strongly expressed. The apex 

 of the shell under description, the only specimem I ever saw, is 

 broken, and its actual length is 2 inches and |-. It will be observed 

 that the specimen is notched at the base, but I suspect that this arises 

 from accidental distortion. 



April 26. — A Note was read, addressed to the Secretary by J. B. 

 Harvey, Esq., Corr. Memb. Z.S., and dated Teignmouth, April 24, 

 1836. It referred to a series of specimens of Rostellaria Pes Pelicani, 

 Lam., presented by the writer to the Society, and which he regards as 

 interesting on account of the evidence afforded by them of the curious 

 fact, that in the shells of this species the outer lip is most thickened 

 at a time antecedent to the full development of the shell ; absorption 

 of the incrassated part of the lip taking place as the animal advances 

 in age. " This series," Mr. Harvey remarks, " clearly shows that 

 the shell, when not more than one half or three quarters grown, is 

 much thicker than when all the processes are perfected : and that, 

 when each process has a groove or channel in it, the shell is quite 

 thin, and has arrived at its full period of growth." 



The shells referred to in Mr. Harvey's letter were exhibited. 



Characters were read of the Vespertilionidce observed in the central 

 region of Nepal ; being a communication transmitted to the Society 

 by B. H. Hodgson, Esq., Corr. Memb. Z.S. They have already been 

 published in the ' Journal of the Asiatic Society of Calcutta', for De- 

 cember, 1835, vol. iv. p. 699. 



• This certainly was, and I believe (wherever it maybe) is, the only spe- 

 cimen in Europe. It was m remarkably fine coiiditiou. 



