394: Remarks on some Species of 



XXXVIII. — Remarks on some Species of West Indian Marine 

 Shells in the Cabinet of Amherst College, Mass. 



By Henky Krebs, of St. Thomas, W. I. 

 Bead November 26, 1866. 



(communicated by t. bland.) 



(Mr. Krebs published in 1864, for private distribution, a Catalogue of the "West 

 Indian Marine Shells. With a view to the republication of the Catalogue, with 

 additions and corrections, he lately visited Amherst College for the purpose of 

 examining the specimens deposited in the Cabinet of that Institution by the late 

 Professor C. B. Adams. The following are the notes of Mr. Krebs on them and 

 their nomenclature. T. B.) 



Calcar ramosus Meusch. Three specimens from Florida 

 without name, and two marked " turbinatus" locality not 

 given. 



Calcar Spenglerianus Chem. Two small imperfect speci- 

 mens from Jamaica, without name. 



Cerithium bicolor C. B. Ad., is the C. punctatum L., of the 

 collections at St. Thomas, W. I., and of Mr. Robert Swift of 

 Philadelphia. 



Cerithium ambiguum C. B. Ad., is syn. with C. costata Da 

 Costa (Wood's Ind. Test, pi. 25, fig. 13), and C. Petitii Kien. 



Cerithium Emersonii C. B. Ad., is very like C. costata Da 

 Costa. 



Cerithium Lafondii Mich., has all the characters of C. costata 

 Da Costa. 



Cerithium gemmulosum C. B. Ad. There are two different 

 species in one tube, but the one wdiich we take to be the G. 

 gemmulosum is closely allied to C iota C. B. Ad., C. albovitta- 

 tum C. B. Ad., and C.fusiforme C. B. Ad. 



Cerithium servile C. B. Ad., is not in the Amherst Cabinet ; 

 perhaps Adams found it to be syn. with his C. ambiguum. 



Cerithium variabile C. B. Ad. We take this to be syn. with 



