100 COCHLITOMA. 



Length 38, diam. 17, aperture 17 x 9 mm. 



S. Africa: Eastern slope of the Drakensberg mountains, at 

 Lydenburg Gold Fields, Transvaal (Smith, Craven). 



A. transvaalensis SMITH, Quart. Journ. of Conch, i, p. 351 

 (May, 1878) .CRAVEN, P. Z. S. 1880, p. 616. MARTENS, 

 Sitzungsber. Ges. naturf. Freunde, 1900, 119. 



"This species in texture and color resembles in a degree 

 A. natalensis Pfr., but its form is very different and the 

 granulation rather finer. In shape and the proportion of the 

 whorls it approximates A. polychroa of Morelet, but the volu- 

 tions are much more convex and the columella is not straight" 

 (Smith). 



28. C. PENESTES (Melvill & Ponsonby). PL 28, fig. 40. 



Shell ovate-pyramidal, much attenuated above, especially 

 near the apex, whorls 6, under the lens granate-decussate, at 

 the sutures impressed, the last whorl rapidly enlarging, 

 smoother at the base, longitudinally irregularly wrinkled. 

 Aperture ovate-oblong. Columella twisted and somewhat 

 truncate. Length of largest specimen 1.30, diam, .75 inch. 

 (M. & P.). 



S. Africa: Pretoria (Wotton). 



Achatina penestes M. & P., Ann. and Mag. N. H. (6), xii, 

 p. 104, pi. 3, f. 3 (August, 1893). 



"The shape is peculiar, ovate-pyramidal, the last whorl 

 rapidly increasing, somewhat effuse, the other w r horls small 

 in proportion. The surface, excepting that of the basal half 

 of the last whorl, which is smoothish though longitudinally 

 wrinkled, granate-decussate. ' ' 



The color, rather an important character in Achatina, is 

 not described. 



29. C. PARTHENIA (Melvill & Ponsonby). PL 12, fig. 38. 



Shell oblong, glossy, smooth, thin, bright and pale straw- 

 olive, suffused with flesh color above. Whorls 8, the apical 

 ones immersed, globular, smooth, the rest impressed at the 

 sutures, somewhat gradate, a little ventricose, the four upper 

 whorls, after the apical ones, very minutely decussate under 



