JOURNAL OF CONCHOLOGY. 1 67 



ON THE GENUS CUMA. 



By the rev. a. H. COOKE, M.A., F.Z.S. 

 Curator in Zoology, Cambridge. 



In H. and A. Adams' ' Genera of the Mollusca,' the follow- 

 ing are enumerated as 



Species of Cuma (Humphr.). 



Africana Mart. muricina Blainv. 



carinifera Lam. quadrata Jonas 



cuspidata Ad. & Rve. rugosa Quoy 



diadema Lam. sacelhtm Chem. 



Grateloiipiana Petit tectitin Chem. 



Gravesii Brod. thiarella Lam. 



imperialis Blainv. trigona Lam. 



kiosquiformis Duel. 

 Of these, Africana, diadetna^ imperialis, thiarella=^carinifeT'a ; 

 Grateloupiana and trigona are better known d.sgradata Jonas, for 

 which I strongly suspect quadrata is a misprint ; cuspidata is 

 possibly a variety of Purpura hippocastanmn, Gravesii is a 

 Coralliophila, muricina is a Sistruin, rugosa Quoy is an error for 

 rugosa Born {rugosa Q\ioy=scobina Quoy), which is a synonym 

 of sacelluni Chem. 



The list, therefore, of species of Cuma may be re-written 

 as follows : — 



carinifera Lam. sacelluni Chem. 



gradata Jonas tectum Chem. (Wood). 



kiosquiformis Duel. 



Tryon, in his ' Manual of Conchology,' vol. ii., pp. 199-202, 

 enumerates the following as Cuma (Humphr.) : — 



kiosquiformis Duel. gradata Jonas 



purpuroides d'Orb. tectum Wood 



carinife7-a Lam. rugosa Born 



coronata Lam. muricata Hinds 



