96 
W. Ko beit: 
* Opeas mauritiana Pfr. 
* Gaecilianella mauritiana H Ad. 
¥ Succinea mascarensis Nev. (striata Ks.) 
* Physa borbonica De sh. (seychellarum Mts.) 
*Plecotrema octanfracta Jon. 
* Laimodonta conica Pease 
* — afßnis Fer. 
*Melampus lividus Desh. 
*— fasciatus Desh. 
* — caffer Küster 
*— bridgesi Carp. 
*— melanostomus Garr. 
* Cyclotopsis conoideus Pfr. (spurcus Sow.) 
Tropidophora pulchra Gray (= ortys Val. = 
arthuri Grat.) 
Cyathopoma blanfordi Ad. 
Leptopoma seychellarum Pfr. 
Helicina theobaldiana Ney. 
Paludomus ajanensis Morelet 
*Melania tubereulata Müll. 
*— scabra Müll. 
— contracta Lea 
— dermestoidea Lea 
*Septaria borbonica St. Pierre 
*Neritina gagates Recluz. 
Von der Insel Rodriguez kennen wir 
durch Desmazures (Journ. Cqnch. XXI, p. 137 ) 
und Be w-sher (J. C. XXIII, p. 21) folgende 
Arten: 
? Streptaxis piriformis Pfr. 
*Gibbulina modiolus Fer. 
— metableta Crosse 
— rodriguezensis Crosse 
— chloris Crosse 
Pachystyla bewsheriana Morel. 
— rodriguezensis Crosse 
* Helix similaris Fer. 
Stenogyra clamlina Pot. et Mich. 
Pupa desmazuresi Crosse 
*— lienardiana Crosse Maur. 
* Succinea mascarensis Nevill 
*Melampus lividus Desh. 
*— fasciatus Desh. 
*— dupontianus Morel. 
Tropidophora articulata Gray 
— bipartita Morelet 
*Ligatella haemastoma var. 
*£f desmazuresi Crosse 
— bewsheri Morelet 
Omphalotropis littorinula Crosse 
— hameliana Crosse 
Planorbis rodriguezensis Crosse 
* Melania tubereulata Müll. 
*— commersoni Morelet 
*— scabra Müll. 
* Navicella porcellana L. 
— bimaculata Reeve 
'* Neritina longispina Recluz 
*— mauritiana Lesson 
*— gagates Lam 
Von Sokotra kennen wir: 
Ennea cylindrica E. A. Smith 
Passamaiella passamaiana Petit 
— isthmodon Martens 
— exodon Martens (balfouri G. Austen) 
— socotrana (Pupa) G. Austen 
— mirabilis E. A. Smith 
— bentii E. A. Smith 
— rotunda E. A. Smith 
Ovella acuta E. A. Smith 
— artufeliana Ancey 
— balfouri G. Austen 
— candidissima L. Pfr. 
— dahomiscensis E. A. Smith 
— densecostulata E. A. Smith 
— hadibuensis G. Austen 
— homhilensis E. A. Smith 
— innocens E. A. Smith 
— laevior E. A. Smith 
— longiformis G. Austen 
