ACHATINA, WEST AFRICA. 17 



without truncation. In the last character it is unlike A. 

 studleyi, which otherwise seems very similar. 



Prof. Godet has identified this species from Rikatla, Dela- 

 goa, collected by H.-A. Junod, and Prof, von Martens recog- 

 nizes it from German East Africa. I do not know that either 

 identification was based upon an actual comparison of speci- 

 mens. If well-founded, they give the species a wide range 

 across the continent. 



Group of A. welwitschi. 

 Parachatina Bgt, 1889; type A. dohrniana. 



Varying from solid to thin, usually dark brown with some 

 darker streaks, but no zigzag or oblique markings. Aper- 

 ture and columella white, or tinted blue or lilac. Distribu- 

 tion, Angola; one species, A. glutinosa, in East Africa. 



10. A. PAIVANA Morelet. . PI. 2, figs. 11, 12. 



Shell oblong-conic, solid, longitudinally striate and very 

 minutely granulate, glossy rufous-brown, streaked with a 

 darker shade. Spire elongate, the apex rather obtuse. 

 Whorls 8, a little convex, the last subangulate, scarcely gran- 

 ulated, longer than the spire. Columella white, lightly 

 arcuate, somewhat twisted, tapering-truncate. Aperture 

 elliptic-oval, whitish inside; peristome simple, unexpanded, 

 thin, bordered with brown. Length 68, diam. 33 mm. 

 (Morelet}. 



West Africa: Rocky forests of Quisembo, in the district 

 of Ambriz, Benguela (Welwitsch). 



Achatina paivana MOREL., Journ. de Conchyl., 1861, p. 

 158. PFR., Monogr., vi, p. 215. A. paiv&ana MOREL., Voy. 

 Welwitsch., Moll., p. 65, pi. 6, f. 3 (1868). 



11. A. WELWITSCHI Morelet. PI. 2, fig. 10. 



Shell oblong-conic, solid, covered with a thin reddish 

 cuticle, which is darker below; spire conic-turbinate, pale 

 above, more or less conspicuously flamed with reddish, the 

 apex submamillate. Whorls 8 to 9, convex, granulose-decus- 

 sate, the last whorl plicatulate-striate, obsoletely decussate in 



