Reference List of South African Non-marine Mollusca. 167 
approached by H. natalensis (Krs.), and it may possibly happen that 
localities given for it really refer to the latter. 
In carinifera the keel, especially in mature shells, is always more 
pronounced, and the whorls, convex below the suture, become concave 
both immediately above and beneath the keel. 
_A pretty milk-white variety is found at Gordon Falls. 
308. Ena (ConuLinus) conuwus (Reeve). 
1849 Bulimus conulus, Rve., Conch. Icon. pl. 78, f. 577. DF. 
1853 3 », Pfr., Mon. Hel. iii. p. 440. D. 
1902 Buliminus (Conulinus) conulus, Rve., Kob., Conch. Cab. p. 952. 
plnlds 6.82 Dir. 
Type in British Museum. 
Hab. Navan. ‘ Port Natal’’ (Mus. Cuming). 
Lorenzo Marquess. Rikatla (Junod). 
ZULULAND. Entendweni (var. ; Toppin). 
309. Ena (XEROCERASTUS) DAMARENSIS, H. Adams. 
1870 Bulimus damarensis, H. Ad., P.Z.S. p. 9. pl. 1, f.17. DF. 
% ie dammarensis, Pfr., Mal. Blatt. xvii. p. 93. D. 
is _ as 5, Novit. Conch. iv. p. 3. pl. 109, f. 7, 8. 
DF. 
1877 ti damarensis, Pfr., Mon. Hel. viii. p. 177. D. 
1887 Buliminus (Hburnea) damarensis, H. Ad., Mouss., J. de C. xxxy. 
ps 200. iN. 
1889 ‘a damarensis, H. Ad., von Mts., Sitz.-Ber. Ges. Nat. 
Fr. Berlin, p. 162. N. 
1900 ie (Zootecus) damarensis, H. Ad., Kob., Conch. Gab. 
p. O62.) pl, LO fly, 18s Dur. 
1910 Ena (Eburnea) damarensis, H. Ad., Bttg., Abh. Senckenb. 
Naturf. Ges. Frankfurt, xxxii. p. 443. WN. 
Type in British Museum. 
Hab. DAmarauanD (coll. Adams). Ussab (fide von Martens) and 
Ubeb, on the Khan River, N. of Tsoachaul (Schenck). Omaruru 
(Schinz). ‘ Kurikaubmund am Swakop (Kurikop bei Otjikango) ”’ 
(Rintelen). 
OVAMPOLAND. Ovambonde (Chapman, fide Layard). Grootfon- 
tein, near Upingtonia, and Epitonna, S.E. of Ondonga (Schinz). 
This species was described by H. Adams in January, 1870, and 
by Pfeiffer in July of the same year; hence the English author has 
priority. 
