282 MU. E. A. SMITH ON SHELLS FROM [Feb. 15, 



This may result merely from difference of age. The largest speci- 

 men collected by Mr. Thomson is IQg millims. long and Qg broad. 



12. BuLiMus NOTABiLis. (Plate XXXII. fig. 8.) 



Bulimus notabiUs, E. A. Smith, Ann. & Mag. Nat. Hist. ser. 5, vol. vi. 

 p. 427 (1880). 



Shell elongate-ovate, deeply and widely umbilicated, of a uni- 

 form light brown colour. Whorls 8 in number, slowly enlarging, 

 moderately convex, sculptured with very fine, close-set, slightly 

 oblique and feebly flexuous lirse or raised lines of growth. Suture 

 simple, almost horizontal. Last volution convex, exhibiting a very 

 faint indication of a median angulation or almost obsolete carina. 

 Aperture irregularly ovate, subauriform, rather acuminate both above 

 and at the base, where it is channelled, pinkish or pinkish brown 

 within. Umbilicus broad, pervious to the apex, surrounded by an 

 obtuse ridge. Peristome whitish, not thickened ; outer margin 

 (viewed laterally) oblique, scarcely arcuate, a trifle prominent in the 

 middle, not reflexed or expanded ; columellar margin broadly ex- 

 panded, arcuate, its upper extremity united to the superior termi- 

 nation of the outer lip by a thin callosity. Length 4'^ millims., 

 diameter of last whorl 20; aperture 17| long, II wide. 



Hab. Between Lake Nyassa and the east coast {Thomson). 



The peculiarity of the basal canaliculation of tlie aperture affords 

 an interesting intermediate grade between this genus and Achatina. 



13. Bulimus (Buliminus) kirki, Dohrn. (Plate XXXII. 

 fig. 9.) 



Buliminus TcirTcii, Dohrn, Proc. Zool. Soc. 1865, p. 232; Martens, 

 Decken's Reisen in Ost-Afrika, vol. iii. p. 150. 



Hab. Between Lake Nyassa and east coast {Thomson). 



This species was originally collected by Dr. Kirk at Cabaceira in 

 Mozambique, and subsequently by Mr. A. E. Craven at Magila. 



14. Achatina hamillei, Petit. (Plate XXXII. fig. 10.) 



A. hamillei. Petit, Journ. de Conch. 1858, vol. vii. p. 384, pi. 13. 

 f. 3. 



Shell large, ovate, acuminate above ; spire whitish, striped ob- 

 liquely with brown ; last whorl purplish, striped at intervals and 

 covered with an olive epidermis. Sculpture granose, consisting of 

 coarse oblique lines of growth, which are very coarse beneath the 

 suture, crossed by spiral impressed lines. Whorls 8, moderately 

 convex. Aperture inversely subauriform, a trifle longer than the 

 spire, bluish white within. Peristome thin, margined within with 

 purplish brown. Columella thickened, white, not very arcuate or 

 contorted, somewhat abruptly truncated, united to the lip above by 

 a thickish white callosity. Length 130 millims., diara. 62 ; aper- 

 ture 69 long, 40 wide. 



Hab. Usambara {Dr. J. Kirk) ; West Africa {Petit). 



The spire of this shell is very like that of A. petersi. Martens. 

 The latter, however, is a smaller species, if the dimensions given by 



