TOMLIN AND SHACKLEFORD : MARINE MOLLUSCA OF S. THOME. 245 



Marginella clandestina Biocchi. 

 Brocchi, Conch. Foss. Subap., ii., p. 242, pi. xv., f. 11. 



S. Thome, fairly common ; Canaries (Watson) ; Baie de Cansado, 

 Arguin Is., El Frey and El Mamghar (Dautzenberg) ; Portugal ; 

 Mediterranean. 



Mitra adansoni Phil. 



Philippi, Zeit. f. Mai., 1848, p. 155. 



S. Thome, rare ; Gaboon (Philippi). 



There has been some confusion between the name of this species 

 and the oriental adamsoni Gray. Our specimens agree exactly with 

 the original description and with a specimen in the British Museum 

 labelled adansoni. It is quite distinct from M. fusca Sow. with which 

 Tryon is inclined to unite it. 



Mitra (Thala) foveata Sow, 

 Mitra foveata Sowerby, Thesaurus, no. 213, f. 408. 

 S. Thome, several examples ; West Indies. 



Mitrolumna olivoidea (Cantr). 

 Mitra olivoidea Cantraine, Bull. Acad. Brux., 1835, p. 391. 

 S. Thome, common ; Canaries ; Mediterranean. 

 The var. crenipicta Dautz. is also common at S. Thome. 



Fusus boettgeri von Maltzan. 

 von Maltzan, Uiagn. Neuer Seneg. Gastrop. in Nachrichtsblatt d.d. 



Malak. Ges., 1884, p. 67. 



S. Thome ; Goree (von Maltzan) ; Baies de Hann et de Rufisque 

 (Dautzenberg). 



Our single specimen is identical with that ^figured by Dautzenberg, 

 who justly censures the inadequacy of the original description and the 

 absence of a figure. 



Latirus filosus Sch. and Wag. 

 Schubert and Wagner, Conch., xii., 349, xiii., 49, t. 15, 16. 



S. Thome, rare; Prince's Island and Senegal (Tryon) ; Cape Verdes, 

 fossil (Nobre). 



Semifusus morio (L.). 

 Murex morio Linne, Syst. Nat, ed. x., p. 753. 

 Tryon, Man. Conch., iii., p. iii, pi. xliii., f. 228, 229. 



S. Thome ; Principe (Rattray) ; Cape Verdes (Nobre) ; Arguin Is. 

 to Loanda (Dautzenberg). 



Fossil : Ghenoudert, El Biferchi, Timardine, N'Tibbau, and Tafou 

 elli in Senegal (G. F. DoUfus). 



J Coijtrib. Faurie Afr, Occ, I., p. 47, pi. ii., f. 3, 4. 



