ACHATINA, EAST AFRICA. 49 



deep. The colmnella is shorter than the anterior part of the 

 right margin. Length 135 mm. Habitat unknown. 



Acliatina maculata DESHAYES, Encycl. Meth., ii, p. 12, no. 

 10 (1830). A. fulva DESII. in Fer., Hist., ii, p. 157, pi. 124, 

 f. 1, 2. ? A. fiilica var., CROSSE & FISCHER, in Graudidier's 

 Histoire Phys. Nat. et Polit. de Madagascar, xxv, Moll., pi. 

 21, f. I-. 



The original account is given above. Deshayes, following 

 Pfeiffer, subsequently referred his species to A. fulva (q. v.} ; 

 but it does not agree with Bruguiere's account of that species, 

 and cannot be identical with it. Reeve's A. acuta seems to 

 be the same as maculata. 



44. A. LETOURNEUXI Bourguignat. 



Shell much elongated, a little tumid, rather heavy, opaque, 

 glossy, the upper whorls buff, then becoming roseate, the 

 median whorls whitish, the last olivaceous-buff; ornamented 

 with reddish-chestnut flames (except on the upper whorls), 

 on the last whorl obscure rufous-subolivaceous. Smooth at 

 the apex, the rest of the whorls increasingly striate and pli- 

 cate, the last one lamellose, especially at the sutures; finally 

 the median whorls are very sharply decussated with very 

 minute sulci. Spire produced, elongate, acuminate, the apex 

 rather obtuse. Whorls 9, a little convex, regularly increas- 

 ing, the lower ones separated by a sulcate suture. Last 

 whorl oblong-convex, relatively of moderate size, less than 

 half the total length. Aperture nearly vertical, oval, pearly 

 whitish inside, the outer margin arcuate-convex. Colmnella 

 arcuate, tapering below and moderately truncated. Peri- 

 stome acute, pale reddish-chestnut in the outer margin. 

 Length 118, diam. 50, aperture 53x30 mm. (Bgt.). 



Zanzibar : environs of Nasimoya. 



A. letourneuxi BGT., Descr. divers esp. de Moll, de 1'Egypte, 

 Abyss., Zanzibar, etc., p. 8 (1879). 



According to Bourguignat, A. letourneuxi approaches A. 

 pantliera, but is slimmer throughout, larger, less ventricose; 

 its aperture is relatively smaller; the columella is longer, 

 more arcuate, less robust and tapers more towards the base, 

 etc. The species has not been figured. 



