TOMLIN AND SHACKI.EFORD : MARINE MOLLUSCA OF S. THOME. 247 



S. Thome, not uncommon ; Madeira, abundant (Watson) ; Medit- 

 erranean ; Spanish Guinea (Hidalgo) ; Port Elizabeth (Crawford). 



Donovania minima (Mont.). 

 Buccinufii minimum Montagu, Test. Brit., p. 247, pi. viii., f. 2; suppl. 



(1808) p. 109. 



S. Thome, scarce ; Madeira, very common, and Canaries (Watson); 

 Atlantic from Great Britain to Senegal ; Mediterranean. 



Donovania affinis Monts. 



Monterosato, Coq. Mar. Maroc. m/ourn. de Conch., xxxvii., p. 116. 

 Dautzenberg, Contrib. Faune Afr, Occ, I., p. 66, pi. ii., f. 11, 12. 



S.' Thome, plentiful ; Bel Air and W. of Cape Rouge (Dautzenberg) ; 

 Casablanca, Taormina, and Pantellaria (Monterosato), 



Purpura haemastoma (L.). 

 Buccinutn haemastomum Linne, Syst. Nat., ed. xii., p. 1202. 

 Tryon, Man. Conch., ii., p. 167, pi. xlix., f. 80, pi. 1., f. 87. 



S. Thome, common ; Principe (Nobre) ; Madeira, Cape Verdes, 

 Canaries, and Azores ; Atlantic, from the Gulf of Gascony to Mossa- 

 medes ; Mediterranean. 



Purpura nodosa (L.). 



Ne/ita nodosa Linne, Syst. Nat., ed. x., p. 777. 

 Mitrex neritoideus Linne, Syst. Nat., ed. xii., p. 12 19. 



S. Thome, rare, and only small specimens ; Principe (Nobre) ; 

 Cape Verdes; Guinea; Benguela (Dunker). 



Sistrum nodulosum (C. B. Adams). 



Purpura nodulosa C. B. Adams, Bost. Proc, 1845, 'i-' 2. 

 Tryon, Man. Conch., ii., p. 190, pi. 59, f 275. 



S. Thome, fairly common ; Principe, Cape Verdes, and Fernando 

 Po (Nobre) ; Spanish Guinea (Hidalgo) ; West Indies ; Brazil. 



Cyprsea zonata Chem. 

 Chemnitz, Conch. Cab., x., p. 107, pi. cxliv., f. 1342. 



S. Thome, rather common ; Senegal, Guinea (Dautzenberg) ; Cape 

 Verdes and Angola (Nobre). 



Cypraea stercoraria L. 



Linne, Syst. Nat, ed. x., p. 719. 

 Sowerby, Thes., pi. xvi., f 96 — 98. 



S. Thome, not common ; Cape Verdes (Nobre) ; Spanish Guinea 

 (Hidalgo) ; Senegal to Mossamedes. 



