TOMLIN AND SHACKLEFORD : MARINE MOLLtJSCA OF S. THOME. 2^3 



Rissoia similis (Scacchi). 

 Rissoa similis Scacchi, Cat. Reg. Nap., p. 14. 



S. Thome, scarce ; Madeira and Selvagens, very abundant (Wat- 

 son) ; Mediterranean. 



Alvania cancellata (Da Costa). 

 Turbo cancdlatus Da Costa, Brit. Conch., p. 104, pi. 8, f. 6, 9. 



S. Thome, not uncommon; Bay of Praya-Amelia (Dautzenberg) ; 

 Canaries, Azores, Madeira ; Atlantic from Great Britain to Morocco ; 

 Mediterranean. 



Alvania crispa Watson. 



Watson, P.Z.S., 1873, p. 369, pi. 34, f. 6. 



S. Thome, rare ; Madeira, abundant (Watson). 



Rissoina elegantula Angas. 

 Angas, P.Z.S., 1880, p. 417, pi. 40, f. 10. 



S. Thome, not uncommon ; Port Elizabeth and Port Alfred ; South 

 Australia. 



Barleeia rubra (Mont.). 

 Turbo ruber Montagu, Test. Brit., p. 320. 



S. Thome, abundant; Teneriffe (McAndrew) ; Great Britain to 

 Mediterranean. 



The var. unifasciata Mont, also occurs at S. Thome. 



Peringia ulvae (Pennant). 

 Turbo ulvae Pennant, Brit. Zool. IV., p. 132, pi. 86, f. 120. 



S. Thome, rare ; Senegal (Dautzenberg) ; Baltic ; Great Britain to 

 Gibraltar ; Mediterranean. 



Sub-fossil : Nouakchott (Dautzenberg). 



Dollfus has recently shewn {J. de Cofich., vol. 59, pp. 234-248) 

 conclusively that Baster's Turbo stagnalis is a prior name for our 

 Paludestrina ventrosa Mont., and that the name ulvae Penn. must be 

 adopted for the shell now recorded, 



Truncatella clathrus I.owe. 

 Lowe, Zool. Journ., V,, p. 303. 



S. Thome, a few specimens ; W. Indies (Shuttleworth). 



Hipponyx antiquatus (L.). 

 Patella antiquata Linne, Syst. Nat., ed. xii., p. 1259. 



S. Thome, not common ; Principe (Nobre) ; Cape Verdes, Bale de 

 Hann (Dautzenberg); Loanda (Dunker) ; West Indies; Fernando 

 Noronha and Ascension (Smith) ; Australia and Polynesia (Dautzen- 

 berg). 



