38 ACHATINA, EAST AFRICA. 



with more or less wide-spaced or obsolete spiral impressed 

 lines, wholly disappearing below the middle. Spire conoid- 

 ovate, the apex minute. Whorls 7, convex, regularly increas- 

 ing, the suture at first simple, becoming irregularly crenate. 

 Last whorl large, ovate. Aperture whitish inside, the pari- 

 etal, columellar and outer margins rose-tinted ; angular above, 

 convex outwardly; callous thick, pale roseate. Columella 

 arcuate, strong, abruptly and obliquely truncate at the base. 

 Length 169, diam. 84, aperture 97x50 mm. (Ancey). 



Mouth of the Lindi river, southern part of German East 

 Africa (E. Marie). 



Achatina mariei ANCEY, Mem. Soc. Zool. France, vii, p. 

 221, f. 1 in text (p. 222), 1894; Journ. de Conchyl., 1902, 

 p. 275, f. 2. 



A. immaculata, with one whorl more, is not so large. A. 

 mariei is one of the most massive forms of the genus. It 

 belongs to the group of panthera and layardi, according to 

 Ancey. 



37. A. MILNEEDWARDSIANA Revoil. PI. 14, fig. 4. 



Shell very large, lengthened-oblong, solid, heavy, opaque, 

 glossy, striatulate, the median whorls wrinkled at the suture, 

 the last whorl fimbriate and crispulate-tuberculate, with two 

 spiral lines towards the aperture. Upper whorls uniform 

 whitish-rose, the rest whitish wine-color and ornamented with 

 wide vinous-purple flames of more or less deep tint. Spire 

 long, acuminate, acute at the summit. Whorls 10, a little 

 convex, regularly increasing, separated by an impressed 

 suture, the last whorl relatively moderate in size, less than 

 half the total length, convex, a little compressed below the 

 suture, swollen and rounded at the aperture, suddenly de- 

 flexed in front. Aperture scarcely oblique, lunate, rounded 

 subovate, the outer lip quite convex, pearly- white within; 

 peristome unexpanded, obtuse, thickened above at the inser- 

 tion, rather acute at the base. Columella short, robust, 

 twisted, strongly curved, and conspicuously truncated below, 

 the sinus below the truncation producing a sulcus outside; 

 margins joined by a thick white callous (Revoil). 



