26; 

 THE MARINE MOLLUSCA OF SAO THOME, I. 



By J. R. LE B. TOMLIN, M.A., and L. J. SHACKLEFORD. 



(Read before the Society, Sept. gth, 1914). 

 {Concluded from page 256). 



Astrsea (Bolma) rugosa (L.). 



Turbo rngosiis Linne, Syst. Nat., ed. xii., p. 1234 (1767). 



S. Thome, not uncommon ; Mediterranean ; Atlantic shores of 

 Spain and S.W. France; Madeira, Canaries and Azores. 



Clanculus kraussi (Phil.). 

 Trochus kraussi Philippi, Conch. Cab., 2nd ed., p. 82, pi. 14, f. 14 



(1846). 



S. Thonitj, rare; Bale du Levrier to Senegal (Dautzenberg) ; 

 Durban (Sowerby). 



Clanculus guineensis (Gmelin). 

 Trochus guineensis Gmelin, Syst. Nat., ed. xiii., p. 3574 (1791). 

 Fischer in Kiener, Spec. Gen. Trochus, p. 221, pi. Ixxii., f. 3. 



S. Thomtf, fairly common: Spanish Guinea (Hidalgo); Libreville, 

 Liberia and Gaboon (Dautzenberg). 



Omphalius fasciatus (Born). 

 Trochus fasciatus Born, Mus. Caes. Vindob., p. 331, t. 12, f. 3, 4 (1780). 

 S. Thome, several specimens ; West Indies. 



Rhodinoliotia gen. nov. 

 This name is proposed for the shell described as Cyclostrema 

 roseotincta Smith from Whydah. This species has little to do with 

 Cyclostrema^ and Mr. Smith was evidently doubtful at the time where 

 to place it. It is a minute shell, with vague rosy markings, a well- 

 marked umbilicus, continuous peristome, and strong spiral ridges. 

 In form it somewhat resembles certain Minolias, and is very like 

 M. tefiids (Sow.), Ceylon, but it cannot belong to the Trochidce, 7[.s 

 the shell is not nacreous, and we should assign it to the Liotiidce. 



Rhodinoliotia roseotincta (Smith). 

 Cyclostrema roseotincta Smith, P.Z.S., 1871, p. 737, pi. 75, f. 27. 

 S. Thomd, not uncommon ; Whydah (Smith). 



Teinostoma punctatum Jouss. 

 Teinostoma punctatum Jousseaume, Rev. & Mag. de Zool., 1872, p. 



337, pi. 18, f. 5. 



S. Thome, common ; dredged off Boulbine, Conakry, Cotonou, 

 Los Is., and Grand Bassam (Dautzenberg); Principe (Jousseaume). 



