276 Annals of the South African Museum. 
1875 Spatha natalensis, Lea, Cless., ibid. p. 189. pl. 62, f. 7, 8. DF. 
, wahlbergi, Krs. ,, perp Gat. a. (ee 
1891 is + ,, von Mts., Sitz.-Ber. Ges. Nat. Fr. Berlin, 
DoT Ty wane 
»  Mutela ts i emoigh, ASME N Ee swainparolo. ) Lv. 
1897 Spatha i » von Mts., D.-O.-Afr. p. 247. D. 
1900 X. 4 ,, Simpson, Proc. U.S. Nat. Mus. xxii. 
p- 898. Synonymy. 
1909 a Ee , Kob., Abh. Senckenb. Naturf. Ges. 
Frankfurt, xxxi. p. 50. WN. 
Type of wahlbergi in Stockholm Museum; natalensis in U.S. 
National Mus. Washington. 
Hab, TransvAau. Aapies River (Wahlberg; Farquhar). Croco- 
dile River (Day). Middelburg (Crawford). 
Lorenzo Marquss. Tette (Peters). 
ZULULAND. Enseleni River (Anderson). 
Narau. Umpingave River (natalensis, McKen). 
Ruopesia. Bulawayo (in coll. Crawford). 
Also found in East Africa. 
von Martens (1897) remarks that S. natalensis, Lea, appears to 
differ little from bloyeti, Bgt.; Sturany and Simpson, however, 
place it in the synonymy of wahlbergqi. 
Kobelt (1909) states that he is unable to separate spathuliformis, 
Bgt., from wahlbergi, and includes Spathella bourquignati, Ancey, as 
a variety of Krauss’ species. 
var. DORSALIS, von Martens. 
1859 Spatha wahlbergi, “ Krs.,’’ von Mts., Mal. Blatt. vi. p. 217. 
1897 " Krs., var. dorsalis, von Mts., D.-O.-Afr. 
ipl OAD: 
Hab. Lorenzo Marques. Tette; Sena (Peters). 
Faminy CYRENIDA, Gray, 1840. 
(Syn. Brit. Mus. pp. 133, 149.) 
Genus CORBICULA, von Mihlfeld, 1811. 
(Mag. Ges. Naturf. Fr. Berlin, p. 56.) 
Type of Genus, C. fluminalis (Mill.). 
It would require intimate acquaintance with the types, and long 
sets of each variety, to unravel the extraordinary tangle into which 
the African species of Corbicula have been woyen, 
