138 PUPOIDES, WEST AFRICA. 



Wollaston notes that it has the habit of coating itself over 

 with a hardened envelope of dirt, and that the angular 

 tubercle is as often absent as present. 



22. PUPOIDES CALAHAEICUS (Bttg.). PL 14, figs. 10, 11; pi. 

 17, fig. 8. 



In shape more like the Mexican B. chordatiis P. than any 

 of the species near B. cocnopictits Hutt. Shell small, widely 

 rimate, cylindric-oblong, rather thin, corneous-brown, glossy ; 

 spire convexly turrited ; apex rather obtuse. Whorls 5 1 /-? to 6, 

 convex, very slowly increasing, not differing much in height, 

 separated by an impressed, narrowly margined suture, ob- 

 liquely, arcuately striate, the last slightly ascending, some- 

 what inflated, swollen around the rimation, anteriorly yellow, 

 subconstricted, scarcely one-third of the length. Aperture 

 truncate-oval, receding basally ; columella deep, simple ; peri- 

 stome acute, flatly and widely expanded, whitish, margins 

 converging, joined by a callus which bears a tubercle at the 

 insertion of the right margin ; right margin almost angularly 

 curved above, the basal semicircular, columellar somewhat 

 straightened, spreading. Length 5% to 6*4, greatest diam. 

 214 to 2% mm. ; alt, aperture 2, width 1% to 1% mm. (Bttg.). 



British Bechuanaland : Ghous (Nolte, type loc.). Griqua- 

 land West: Blaauwbosch Poort, Hay District (Day). Hartz 

 River, Taungs (Miss Wilman). Damaraland (Geale, in Brit- 

 ish Mus.). Rhodesia: Victoria Falls (Connolly). Cape of 

 Good Hope: Jansenville (Parquhar, Crawford); Prieska 

 (Gibbous) ; Karroo (Brit, Mus.). 



Bidiminus (LeucocJiiloides) calaharicus BOETTGER, Bericht 

 Senck. Nat. Ges., 1886, p. 24, pi. 2, f. 3a-c. -- Lcucochiloides 

 calaharicus Boettger, CONNOLLY, Ami. S. Afr. Mus., xi, pt. 3, 

 1912, p. 177. 



"Of this species three specimens Avere found in the same 

 locality as Hx. alcxandri P., f. minor, at Ghous in the south- 

 ern Kalahari. One of them was collected alive. The species 

 appears to harbor by preference in the old shells of the Helix. 



"Compared with the LcncocJiiloidcs species B. fallax Say, 

 cccnopicius Hutton, conspectus Hutton, fabianus Gredler, 

 senegalensis Morelet, sennaxtriensis P., acthlopicus Bgt, and 



