150 Annals of the South African Museum. 



1895 Dorcasia alexandri, Gray, Pilsb., Man. of Conch, ix. p. 172. 



pi. 60, f. 6. R. Frontisp. f. 3. A. 



1905 Pilsb., Proc.Mal. Soc. vi.p.286. N. 



1910 Helix (Dorcasia} alexanderi, Gray, Bttg., Abh. Senckenb. 

 Naturf. Ges. Frankfurt, xxxii. p. 439. N. 



Type in British Museum. 



Hab. GREAT NAMALAND. Near the Great Fish Eiver( Alexander). 



DAMARALAND. Ussab (fide von Martens). " Kurikaubniund am 

 Swakop (Kurikop bei Otjikango) " (Eintelen). 



LITTLE NAMALAND. Henkries (Lightfoot). 



var. MINOR, Bottger. 



1886 Helix (Dorcasia) alexandri, Pfr., var. minor, Bttg., Ber. Senc- 



kenb. Naturf. Ges. Frankfurt, p. 22. pi. 2, f. 1. D.F. 

 1893 Dorcasia alexandri, Gray, var. minor, Bttg., Pilsb., Man. of 



Conch, viii. p. 261. pi. 28, f. 98-100. D.F. 

 Type in Senckenberg Museum, Frankfurt. 



Hab. BRITISH BECHUAN ALAND. " Ghous, Gordonia, bed of Hygap, 

 probably W. of Zwart Modder " (Nolte). 



GREAT NAMALAND. Geitsi-Gubel, near Bersaba (Schenck). 



var. ROTUNDATA, Mousson. 



1887 Helix alexandri, Gray, var. rotundata, Mouss., J. de C. xxxv. 



p. 292. pi. 12, f. 1. D.F. 

 1893 Dorcasia alexandri, Gray, var. rotundata, Mouss., Pilsb., Man. 



of Conch, viii. p. 261. D. 

 1895 Dorcasia alexandri, Gray, var. rotundata, Mouss., Pilsb., Man. 



of Conch, ix. p. 172. pi. 38, f. 6, 7. N.F. 

 Type in Zurich Museum. 

 Hab. DAMARALAND. Rehoboth (Schiuz). 



var. TRIVIA, Bottger. 



1910 Helix (Dorcasia) alexanderi, Gray, var. trivia, Bttg., Abh. Senc- 

 kenb. Naturf. Ges. Frankfurt, xxxii. p. 439. pi. 28, f. 3. D.F. 

 Type in Senckenberg Museum, Frankfurt. 

 Hab. DAMARALAND. Khomas-Hochland (Schultze). 



283. DORCASIA BULBUS (Menke). 



1848 Helix bulbus, Mke., Pfr., Zeitschr. f. Malak. v. p. 116. D. 

 1353 Conch. Cab. p. 268. pi. 122 (1852), 



f. 4-6. D.F. 



