COCHLITOMA. 101 



a lens, this sculpture nearly disappearing on the antepenulti- 

 mate whorl, the last two smooth, glossy. Aperture ovate, the 

 peristome thin, a little effuse, the columella somewhat trun- 

 cate at the base, thin. Length 38, diam. 19 mm. (M. & P.). 



S. Africa: Lower Umfolosi Drift, Zululand (Burnup). 



A. parthenia M. &. P., Ann. and Mag. of Nat. Hist. (7), 

 xii, p. 605, pi. 32, f. 10 (Dec., 1903). 



''Of the same group as A. penestes, transvaalensis and 

 livingstonei, but very distinct from all, differing both in 

 form and coloration from any described species. The shin- 

 ing stramineous hue, with a blend of olive is peculiar; this 

 is periostracal, the dead white of the shell itself showing 

 through in occasional patches. The upper whorls with the 

 aid of a lens are seen to be most, finely decussate. This 

 gradually becomes evanescent, till the last two whorls appear 

 quite smooth " (M. & P.). 



30. C. CHUKCHILLIANA (Melvill & Ponsonby) . PL 33, figs. 7, 10. 



Shell pyramidal-fusiform, rather solid, obtuse at the apex. 

 Whorls 7, somewhat tumid, subimpressed at the sutures. 

 Above, at the sutures it is indistinctly granulate-striate, be- 

 low flattened, smooth; covered with a thin ashen-ochraceous 

 cuticle. Last whorl produced. Aperture oblong, the peris- 

 tome simple. Length 3, diam. 1.5 inch. (M. & P.). 



South Africa: Port Natal (G. C. Churchill, Esq., Owens 

 College Museum, Manchester; A. Grout, Acad. N. S. Phila.). 



A. churchilliana M. &. P., Ann. and Mag. N. H. (6) xv, 

 p. 164, pi. 12, f. 3 (Feb., 1895). 



''This plain-looking Achatina is doubtless one of the 

 natalensis group, but we cannot identify it with any of the 

 hitherto described species." The type is a broken shell 



(fig. 7). 



Specimens of this species before me (pi. 33, fig. 10) meas- 

 ure from length 69, diam. 34, aperture 33 mm., to 66, 30, 

 32 mm. They are white under a thin straw-yellow cuticle. 

 The decussate sculpture is well described as indistinct. On 

 the last whorl the striae are rather coarsely "gathered" at 

 the suture, and spirals are absent. Whorls 7y 2 , evenly con- 

 vex, the last full below. 



