TOMLIN AND SHACKLEFORD : MARINE MOLLUSCA OF S. THOME. 25 1 



Vermetus adansoni Daudin. 

 Daudin, Recueil de Memoires et Notes, p. 35. 

 Tryon, Man. of Conch., viii., p. 169, pi, xlix., f. 20, 21 ; pi. xlviii., f. 12. 



S. Thome, rare ; Senegal, Gaboon (Dautzenberg). 



Sub-fossil : Nouakchott (Dautzenberg). 



Siliquaria senegalensis Recluz. 



Recluz in Morch, P.Z.S., i860, p. 408. 

 Reeve, Conch. Icon., Siliquaria, f. 8. 



S. Thome, rare; Spanish Guinea (Hidalgo); Senegal; Cape Verdes 

 (Nobre). 



Mathilda quadricarinata (Brocchi). 

 Turbo quadricarinatus Brocchi, Conch. Foss. Subap., p. 375, pi. vii., 



f. 6. 



S. Thome, rare ; S. Helena and Canaries (Smith) ; Madeira (Wat- 

 son) ; Rufisque (Dautzenberg) ; Mediterranean. 



Caecum vicinum de Folin. 

 de Folin, Les Fonds de la Mer, i., p. 207, pi. xxviii., f. 5, 6. 



S. Thome, rare ; Bale du Levrier (de Folin) ; Conakry and W. of 

 Cape Rouge (Dautzenberg). 



Planaxis herrmannseni Dkr. 

 Dunker, Index Moll. Guin., p. 16, pi. ii., f. 33, 34, 



S. Thome, common ; Cape Verdes ; Tamara (Dautzenberg) ; Ben 

 guela (Dunker). 



Sometimes ranked as a variety of P. lineatus daC. 



Littorina punctata (Gmel.). 

 Turbo punctattis Gmelin, Syst. Nat., ed. xiii., p. 3597. 



S. Thome, not common ; Mediterranean to Cape Colony ; Madeira 

 and Cape Verdes (Nobre). 



Littorina cingulifera Dkr. 

 Dunker, Zeitschr. f. Malak., 1845, p. 166. 



S. Thome, a few specimens ; Conakry, Port Bouet, Libreville, 

 Banana, Benguela, and Loanda (Dautzenberg). 



Tectarius granosus (Phil.). 

 Littorina granosa Philippi, Abbild., p. 65, pi. vii., f. 14. 



S. Thome, not uncommon ; Conakry (Rattray) ; Boulbine, Los Is., 

 Tamara, Ivory Coast, Libreville (Dautzenberg) ; Liberia, Gaboon, and 

 Fernando Po are also quoted by Dautzenberg.^ 



I Miss. Gruvel in Ann. de I'lnst. Oc6anogr., Moll. Marin.s, p. 47 (sep. copy). 



