264 Major M. Connolly on 



soon lost, even in live shells, which, if much exposed, become 

 dull and opaque. The striation on the upper whorls is in 

 most examples almost microscopic, and is throughout far 

 more difficult to distinguish on fresh specimens than on 

 weather-beaten ones. The largest shell I have yet seen of 

 this species, from Zwart Kop, measures 19*5 x 4*5 mm., 

 aperture 4 , 2x2 , l, last whorl 7'2 mm. 



In a genus like Euonyma, whose members exhibit so great 

 a diversity of form, it is only after considerable hesitation 

 that I have ventured to differentiate between the present 

 most variable species and the equally variable E. turriformis, 

 Krs., as, although the types look at first sight quite different, 

 extremes of form may be found to run uncommonly near to 

 one another. In E. varia, however, the whorls increase less 

 rapidly and the last whorl and aperture are consequently 

 slightly shorter than in turriformis. The epidermis, too, is of 

 a less silky sheen and more stramineous colour. Mr. Cregoe's 

 specimens from Zoutpansberg present one or two minor points 

 of difference from the type, but, allowing a little for local 

 variation and without further knowledge of the anatomy of 

 the animal, it appears inadvisable to separate them. 



15. Euonyma standeri, sp. n. (PI. VI. fig. 9.) 



Shell elongate, turriform, rimate, pale yellowish olivaceous, 

 rather dull, with a silky sheen, thin, semitransparent; spire 

 produced, gradually and evenly tapering, apex rounded, 

 particularly blunt for the size of the shell, being 1 mm. in 

 diameter. Whorls 7-^, regularly increasing, moderately 

 convex, the first two smooth, remainder thickly covered with 

 close slightly curved stria? of rather irregular depth. Suture 

 clearly defined. Aperture ovate, rounded at base, rather large 

 in proportion. Peristome simple, acute; outer lip slightly 

 outcurved ; hardly bowed forward, but a little retracted 

 toward the base; columella straight, margin triangularly 

 reflexed. 



Shell 14 - 0x45, aperture 45 x 1*9, last whorl 6'7 mm. 



Bab. TRANSVAAL, Standees Kop {Connolly, a large series). 



Adult shells sometimes show traces of a slight callus. I 

 have seen eggs in an example only 9*0 mm. long. 



Possibly only a local form of turriformis, but distinguish- 

 able by its dull silky epidermis, longer apical whorls, and 

 peculiarly blunt apex. In contour it closely resembles 

 E. siliqua, a more shining imperforate shell. 



