X 
Erklärung der Tafeln. 
Tafel A. 
1. Pseudachatina downesi Gray. — 2. Limicolaria rubicunda Shuttl. — 3. Perideris 
solimana Morelet. — 4. Achatina marginata Swains. 
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 
Gould. — 6. 7. Homorus abetifiensis Rolle. 
Tafel 3. 
1. 2. Pseudachatina 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. 
