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. (Anccy) . 



.Mouth of the Lindi river, southern part of German East 

 Africa (E. Marie). 



Ach<;fi)ta 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. 

 in ti rid is one of the most massive forms of the genus. It 

 belongs to the group of panther a and layardi, according to 

 Ancey. 



37. A. MILNEEDWARDSIANA Revoil. PL 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 

 \\-iiitish-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}. 



