Piatt XXVI 
Fig. 1. Potadoma ignobilis (Thiele). Avakubi. 
Figs. 2~2a. Potadoma ignobilis (Thiele). Stanleyville. 
Figs. 3-3a. Potadoma alutacea Pilsbry and Bequaert. Tshopo River. Type 
(Fig. 3a) and paratype. 
Figs. 4-46. Pot doma liricincta (E. A. Smith). Medje. 
Figs. 5-5a. Potadoma liricincta mut. major (Thiele). Medje. 
Fig. 6. Potadoma liricincta (EK. A. Smith). Photographic reproduction of type 
figure. ; 
Fig. 7. Potadoma liricincta latior (Thiele). Photographic reproduction of type 
figure. 
Figs. 8-8c. Potadoma liricincta (EK. A. Smith). Nepongi River, Panga. 
Fig. 9. Potadoma liricincta walikalensis Pilsbry and Bequaert. Between Wali- 
kale and Lubutu. Type. . 
Figs. 10—-10a. Potadoma liricincta semperlirata Pilsbry and Bequaert. Faradje. 
Type (Fig. 10) and paratype. , : 
Figs. ll-lla. Potadoma liricincta dryas Pilsbry and Bequaert. Stanleyville, 
in a forest brook. Type (Fig. 11) and paratype. 
Figs. 12-12a. Potadoma pokoensis Pilsbry and Bequaert. Poko. Type (Fig. 12) 
and paratype. 
