ACHATINA, EAST AFRICA. 61 



A. rodatzi DKR., Zeitschr. f. Malak., 1852, p. 127. PFR., 

 Novit. Conch., i, p. 97, pi. 27; Monogr., iii, p. 483. GIB- 

 BONS, Journ. of Conch., ii, p. 143. PFEIFFER, Jahrb. d. 

 Hamburger wiss. Anstalten, iv, 1889, p. 24. MARTENS, 

 Beschalte Weichthiere D. Ostafr., p. 85. 



Distinguished by its rather long form, white shell sub- 

 stance 'and white mouth. 



53. A. SCHWEINFURTHI Martens. PI. 7, fig. 15. 



Shell ovate-conic, solid, lightly striatulate, obsoletely de- 

 cussate; buff, painted with reddish-chestnut lightning- 

 stripes, narrowing above, widening downwards, almost con- 

 fluent on the last whorl. Spire long, tapering, the apex a 

 little obtuse; suture marginate, lightly plicatulate. Whorls 

 8, a little convex, the last moderately attenuate above. 

 Aperture a little longer than the spire, oval, acute above; 

 columella white, arcuate, obliquely truncate; peristome sim- 

 ple, unexpanded. Length 132, diam. 76, aperture 71 x 39 

 mm. (v. M.). 



East Africa : Njamnjam-Land, on the mountain Baginse, 

 5 degrees north latitude (G. Schweinfurth) ; primitive for- 

 est on the northwest spur of Runssoro, between Karevia 

 and Kiviriri, and in the Andetei district west of the Issango 

 river (Stuhlmanu). 



A. schweinfurthi MARTENS, Malak. Bl., xxi, 1873, p. 40; 

 Beschalte Weichthiere D. Ostafr., p. 85. PFR., Novit. Conch., 

 iv, p. 141, pi. 132, f. 1, 2; Monogr., viii, p. 272. JICKELI, 

 Moll. Nordost-Afrikas, p. 150, pi. 6, f. 1 (good!). 



The specimens from Runssoro are somewhat larger than 

 that obtained by Schweinfurth, length 132, diam. 76, aper- 

 ture 71 mm. Dr. Stuhlmann noticed green mites on them 

 and in the lung cavity. 



Group of A. glutinosa. 



54. A. GLUTINOSA Pfeiffer. PI. 9, figs. 23, 24. 



Shell ovate-conic, rather thin, longitudinally striate, 

 nearly uniform brown. Spire conic, attenuate above, the 



