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Société Portugaise des Sciences Naturelles 
Cerithiopsis, Forbes and Hanley 
Cerithiopsis amblytera, Watson 
Cerithium (Bittium), amblyterum, Watson, in Journ. Lin. Soc., 
v. 15, p. 108. 
Cerithium gracile, Jeffreys, On Light, and Porcup. exp., p. 54. 
Bittium amblyterum, Watson, Challenger, p. 543, pl. 39, f. 6. 
Cerithiella amblytera, Watson. —Dautzenberg, Cont. Faune ma¬ 
ke. Açores, p. 41. 
Cerithiopsis amblytera, Watson. —Locard, Expi. du Trav. et du 
Talisman, v. 1, p. 382. 
I. de C. Verde: Entre 1:248 et 2:266 m de fond (Talisman). 
Triforis, Deshayes 
Tri foris p errer sus, (Lin.) 
Cerithium perversum, Lamk. — D’Orbigny, Moll. Canaries, p. 93. 
Triforis perversa, Lamk.— Watson, Challenger, p. 560, 
Triforis perversa, var. adversa, Dautzenberg, Contr. faune Ma- 
lac. Açores, p. 42; Voyage Melita, p. 30. 
Triforis perversus, Lamk. — Nobre, Fauna C. Verde, p. 170. — 
Locard, Exp. Trav. et Talism., v. I, p. 386. — Nobre, Contrib., 
p. 168. 
I. de C. Verde: Santo Antão, sur les algues du littoral (Cardoso). 
Fam. Planaxidae 
Planaxis, Lamarck 
Planaxis Hermannseni, Dunker 
Planaxis Hermannseni, Dunker. Ind. Moll., p. 16, pl. 2, f. 33-34. 
— Rochebrune, Faune C. Verde, p. 278. — Nobre, Remarques, p. 9; 
Faune S. Thomé, p. 17; Subsidios, p. 170; Fauna Cabo Verde, p. 168. 
I. de C. Verde: S. Thiago (Cessac). Santo Antão (Cardoso). Parmi 
les plantes marines. 
I. de S. Thomé: (Quintas, Castro). 
