Erklärunff der Tafeln. 



Tafel A. 

 1. Pseudachatina downesi Gray. — 2. Limicolaria rubicunda Shuttl. — 3. Perideris 

 solimana Morelet. — 4. Achatina marginata Swaina. 



Tafel 1. 

 1. Livinhacia nilotica Pfr. — 2. 3. Perideris flammigera Per. — 4. 5. Atopocochlis 

 exarata Müll. 



Tafel 2. 

 1. Livinhacia Kraussi Pfr. — 2. 3. Perideris alabaster Rang. — 4. 5. Per. torrida 

 üould. — 6. 7. Homorus abetifiensis Rolle. 



Tafel 3. 

 1. 2. Psßudachatina Nachtigall n. — 3. 4. Perideris reeveana Pfr. — 5. 6. Per. 

 verdieri Chaper. — 7. 8. Per. Kercadonis Grat. 



Tafel 4. 

 1—6. Pseudachatina wrighti Sow. 



Tafel 5. 

 1 — 6, Pseudachatina downesii Sow. 



Tafel 6. 

 1. 2. Pseudachatina elongata Pfr. — 3—6. Pseud. gravenreuthi Böttg. 



Tafel 7. 

 1 — 6. Pseudachatina gravenreuthi Bttg. 



Tafel 8. 

 1 — 6. Pseudachatina downesi var. buchholzi n. 



Tafel 9. 

 1 — 6. Pseudachatina gabonensis Pfr. 



Tafel 10. 

 1. Limicolaria adansoni Pfr. — 2. 3. Perideris solimana Morel. — 4. 5. Per. balteata 

 Gould. — 6. 7. Per. moreletiana Desh. — 8. 9. Per. mucida Gld. 



Tafel 11. 

 1—4. Perideris auripigmentum Rve. — 5. 6. Per. alabaster Rang var. — 7. 8. Per. 

 interstincta Gould. 



Tafel 12. 

 1. Pseudachatina elongata Pfr. — 2. Ps. grandinata Shuttl. — 3. 4. Perideris rubi- 

 cunda Gld. — 5. 6. Limicolaria pyrrha Alb. — 7. 8. Lim. numidica Reeve var. 



