148 Annals of the South African Museum. 
1892 Helix (Pella) tuguriolum, M. & P., A.M.N.H. ix. p. 88. pl. 5, 
Deven OSE. 
1893 Phasis (Trachycystis) tuguriolum, M. & P., Pilsb., Man. of 
Conch, viii. p. 145. pl. 35, f. 1. DF. 
1898 Pella tollini, Alb., Stur., 8.A. Moll. pp. 39, 40. N. 
Originals of tollini in University Museum of Zoology, Cambridge ; 
types of afra and tugwriolum in British Museum ; roseri in Stuttgart 
Museum. 
Hab. Carr or Goop Hope (afra, McGillivray, fide Pfeiffer). 
Table Mountain (tollini, Tollin; Layard). Stellenbosch (Purcell). 
Kalk Bay; Simonstown ; Kommetje; Houw Hoek; Caledon (Con- 
nolly). Gordon’s Bay ; Hermanus (Lightfoot). Bredasdorp (Layard). 
Swellendam District (roser?, Krauss). 
Helix afra, Pfr., is identical with tollini, Alb., and must yield 
priority to the latter, which was the earliest name under which the 
species was either described or figured. The type set of twgwriolum, 
labelled ‘“‘South Africa” (coll. Layard), are also immature, rather 
pale examples of the same species. 
The type, and only authentic example, of roseri, Krauss, is a semi- 
bleached shell, in form exactly resembling immature tollini. Its 
colour is paler, and the surface, being considerably worn, shows 
only the cross striation of tollini and not the fainter spiral sculpture. 
The columellar fold is slightly broken, which gives a more open 
appearance to the umbilical region than is usual in tollini, but the 
underside of the shell and the peculiar shape of the peristome agree 
with that species. After careful consideration, I think I may safely 
declare them to be one and the same. 
279. TRACHYCYSTIS TRICHOSTIROMA (Mely. & Pons.). 
1892 Helix (Pella) trichosteiroma, M.& P., A.M.N.H. ix. p. 84. pl. 4, 
eee DY OY cid 
1893 - strobilodes, M.& P., A.M.N.H.xi.p.19.pl.3,f.1. DP. 
», Lhasis (Trachycystis) strobilodes, M. & P., Pilsb., Man. of Conch. 
viii. p. 147. pl. 43, . 62. DF. 
a 3 trichosteiroma, M. & P., Pilsb., Man. of 
Conch. viii. p. 143. pl. 35, f£. 3. DF. 
1898 Trachycystis trichostiroma, M. & P., Proc. Mal. Soe. iii. p. 174. 
Types in British Museum. 
Hab. Carre or Goop Horr. Port Elizabeth (fide M. & P.). Thar- 
field (Miss Bowker). 
The type of strobilodes is badly figured, but agrees with the original 
description. It is quite inseparable from trichostiroma. 
