118 PSEUDOPEAS. 



This species differs from the others by its flattened whorls, 

 terraced at the sutures. 



5. P. PULCHELLUM Putzeys. PL 25, fig. 13. 



"Shell imperf orate, ovate-turrite, thin, yellow, diaphanous, 

 with obtuse submamillafte apex. Whorls S 1 /^, convex, the first 

 two smooth, the rest ornamented with raised, sublamellose, 

 slightly oblique ribs, and parted by a deep suture, the last 

 whorl a little swollen. Aperture oval; columella straight, 

 reflexed, nearly reaching the base, and forming an angle with 

 the lip anteriorly; margins joined posteriorly by a very thin 

 callus. Length 3.5, diam. 1.6, length of aperture 1.33 mm." 

 (Putz.). 



Congo Valley: Nseudwe, Manyema. 



Pseudopeas pulchellum PUTZ., Ann. Soc. Roy. Malac. 

 Belgique xxxiv, 1899, Bull, des seances p. lix, fig. 11. 



Although Dr. Putzeys states that the first two whorls are 

 smooth in this species and the next, I do not doubt that when 

 seen under a high power they will be found to be 

 spirally engraved. 



6. P. SCALARIFORME Putzeys. PL 25, figs. 9, 10. 



"Shell imperf orate, turriculate, elongate, thin, yellowish, 

 the apex obtuse. "Whorls 6y 2 , convex, quite regularly increas- 

 ing and joined by a deep suture, the first two whorls smooth, 

 the rest ornamented with many longitudinal lamellar riblets. 

 Aperture oval, the lip acute; columella twisted, subplicate, 

 columellar margin reflexed, continuous with the anterior lip- 

 margin. Length 4.5, diam. 1.7, length of aperture 1.5 mm." 

 (Putz.). 



Congo Valley: Nseudwe, Manyema. 



Pseudopeas scalariforme PUTZ., t. c., p. lix, f. 12, 13. 



7. P. ISSELI (Jickeli). PL 25, fig. 11, 12. 



Shell oblong-ovate, thin, rather glossy, whitish, glassy- 

 fliaphanous, under the lens seen to be strongly ribbed length- 

 wise, the upper whorls ornamented with spiral strise. Spire 

 long-conic, the apex obtuse. Whorls scarcely 5, inflated, 



