ACHATINA, EAST AFRICA. 53 



46a. Var. LHOTELLERII Bourguignat. 



A species of the same shape as zanzibarica and with nearly 

 the same set of characters, differing however as follows: 

 (1) In being smaller throughout, length 97, diam. 49, aper- 

 ture 56x24 mm. (2) By the less ventricose form, (3) the 

 less convex whorls, (4) the shorter, more acuminate spire, 

 (5) the penultimate whorl is more oval-elongate, as well as 

 the last whorl less swollen. (6) The aperture is relatively 

 longer, less wide, of a whitish color inside, with corneous or 

 bluish shades here and there. (7) The outer margin is less 

 convex, especially below, giving the aperture an appearance 

 of being more contracted below. (8) The flammules are 

 more regular, not confluent on the last whorl as they are in 

 zanzibarica. (9) The columella is less abruptly truncate at 

 the base (Bgt.). 



Zanzibar: Nasimoya (Bgt.) ; also on the mainland, coll. 

 by Conradt, and Mswa, Oukouere (Ancey). 



A. Ihotellerii Bgt., Descript. div. Moll, de TEgypte, etc., 

 p. 7 (1879). ANCEY, Journ. de Conchyl., 1902, p. 273, 274, 

 fig. 1. A. zanzibarica var. Ihotellerii MARTENS, t. c., p. 86. 



47. A. HAMILLEI Petit. PL 8, fig. 21. 



Shell conic-ovate, ventricose below, painted with wavy 

 chestnut streaks; spire acuminate; whorls 7 to 8, rather 

 rounded, the upper more or less finely decussate, the last 

 rather smooth, margined at the sutures. Columella twisted, 

 truncate, blue-white, the lip simple. Length 90, diarn. 50 

 mm. (Petit). 



Mojoni, interior of the island of Zanzibar, also Tanga 

 (Neumann) ; between Simbamweni and Koo-im-Pori, in 

 Usseguha (Lieder) ; Ussambara (Kirk) ; Massai- Steppe, near 

 Mkurumo (Berlin Mus.) ; between Tanganyika and the Zan- 

 zibar coast (E. Storms) ; Nyasaland (H. H. Johnston). 



A. hamillei PET., Journ. de Conchyl., vii, 1859, p. 384, 

 pi. 13, f. 3. PFR., Monogr., vi, p. 212. SMITH, P. Z. S., 

 1881, p. 282, pi. 32, fig. 10 (variety) ; 1899, p. 590. MAR- 

 TENS, Beschalte Weichthiere D. Ostafr., p. 86, upper two 

 figures on p. 87. ANCEY, Journ. de Conch., 1902, p. 273. 



