and Corrections to a Monograph of Cyprcea, 221 



published by me in the Appendix to the Tankerville Catalogue, under the 

 name of C melanostoma of Leathes's MSS. Upon this I shall only ob- 

 serve, that as Perry must be entirely rejected as authority, and as his 

 name is not in any wise applicable to the shell, Mr. Leathes's name of 

 C. melanostoma must stand, and particularly as Perry's description and 

 figure are so much at variance with each other, that it is not possible to 

 identify them both with the shell in question. 



No. 31*, CyprcBa umbilicata, requires only a few words. The spe- 

 cimen which Mr. Gray has described is not the only one known, and Mr. 

 Gray has seen the individual which I have stated in the Appendix to the 

 Tankerville Catalogue to exist in my own collection. It is much the 

 worse of the two, but it helps to establish the species ; which, by the 

 way, is more nearly allied to C. pantherina than to C. Tigris. 



No. 42, CyprcBa pulchella. I do not at all comprehend Mr. Gray's 

 reference under this species to C stolida. Perry, t. xxiii, f. 4, which is 

 only a bad representation of the true C. stolida. 



No. 64*, Cyprma Deshayesii. A lithographed plate of this has been 

 published by M. Duclos, who has named it Ovula tuberculosa : it is so 

 nearly related to Cyp. Mus, that, under the specific name of tuberculosa 

 it ought most certainly to be placed next to that species wherever it may 

 eventually be thought right to arrange it.* 



No. 83, Cyprcea guttata. It is only necessary to refer to the figure 

 in Martini, or to that already referred to in Mr. Gray's paper, to prove 

 that Perry's C. Jenningsia cannot have been drawn from a specimen of 

 this species, much less from the specimen now in your cabinet. What 

 it has been drawn from it is indeed more difficult to determine ; I think 

 it is a very bad magnified figure of a specimen of C. Staphylcea, 



I am, dear Sir, 



Yours, &c. 



G. B. SOWERBV. 

 Regent-street, July 25, 1828. 



* Two views of this, copied from Mr. Duclos' plate, are given in the XXXth 

 supplementary plate. 



