Mr. Dillwyn on C^prwce described by Mr. Gray. 315 



granted (what may fairly be presumed) that the whole collection 

 had received additions \.o an equal extent with the Hemiptera^ we 

 may calculate that, if that Order had been increased from 1400 

 to 2460, the total number of species, which in 1820 amounted to 

 19,000, could not in 1824 have fallen very far short of 34,000. 



REMARKS ON CYPR^E^ DESCRIBED BY MR. GRAY. 



By L. W. Dillwyn, Esq, F.R, Sf L.S. 



No. 10. I could never find any specific character to distinguish 

 this shell from C. exanthema^ and I have a memorandum extracted 

 from Dr. Solander's MS. in the Banksian Library that he also 

 considered the Linnean C* cervus to be nothing more than a 

 variety. 



No. 17. Cinerea, The error in the Descriptive Catalogue 

 which Mr. Gray has judiciously pointed out arose from my having 

 at first entertained some doubt about this shell, and from my hav- 

 ing described it as a variety of C. vanelli, and afterwards as a 

 separate species, without the necessary erasure of the former de- 

 scription from my MS. 



No. 19. To prevent confusion it may be observed that the 

 C. arenosa of Solander, and of the Portland Catalogue, is the 

 C, Turdiis of Lamarck. 



No. 26. The C. subjuscula of Martyn appears to me to be a 

 distinct species, and it differs from C. Vitellus not only in being 

 half as large again, but also in having the upper surface dark 

 brown and the base fawn-coloured ; it is the C, Dama of Perry, 

 t. 23. f. 3.* 



* No. 26. There is another species lately pubhshedin the Zoological Journal, 

 Vol. ii.p.495, named C. melano stomachy the Rev. G.R. Leathes, which is quite 

 distinct from C. Vitellus^ however nearly it resembles that species in general 

 appearance : to this we believe C. Dama to be a synonym ; -we can however 

 assert, without the least hesitation, that C. subfuscula oi Marty n, is nothing 

 more than a large specimen of C. Vitellus, which will be very evident if atten- 

 tion be paid to the peculiar character of the species. As to Perry's work, th« 

 worst of all bad books, it ought never to be cited. G. B. S. 



