236 Annals of the South African Museum. 



TRANSVAAL. Eanjesfontein ; Potchefstroom (Connolly). 

 Also recorded from Victoria Nyanza. 



497. PLANOKBIS GIBBONSI, Nelson. [S.A.M.] 



1878 Planorbis f/ibbonsi, Nels., Quart. Journ. of Conch, i. p. 379. 



pi. 4, f. 3. D.F. 



1897 ,, von Mts., D.-O.-Afr. p. 150. N. 



1908 ,, Neuville & Anthony, Ann. Sci. nat. 



Paris, viii. p. 260. N. 



Type in coll. Nelson. 



Hab. CAPE PENINSULA. Black Eiver, Maitland (Connolly). 



Described from Zanzibar, and known from Central Africa. 



None of the original specimens of PL gibbonsi have been available 

 for comparison, while the original description and figure do not appear 

 to quite fit the single representative of this species (ex coll. von 

 Martens) in the British Museum, or similar shells in my collection 

 from South and Central Africa. I have, however, submitted a set of 

 the latter to Mr. J. W. Taylor, who kindly replied : " I have carefully 

 examined the Planorbes you sent, and am of opinion that they do 

 represent the PL gibbonsi of Nelson. I find the lithographic artist 

 made the shape of the mouth in the original figure more angular 

 than I am sure it was. I was much interested in these shells when 

 Gibbons sent them, and gave them considerable attention." 



498. PLANOBBIS HEBMANNI, Bottger. 



1910 Planorbis (Coretus) hermanni, Bttg., Abh. Senckenb. Naturf. 



Ges. Frankfurt, xxxii. p. 452. pi. 28, f. 18. D.F. 

 Type in Senckenberg Mus. Frankfurt. 



Hab. DAMABALAND. Okaputa Pan (several dead shells, Hermann). 

 " Very like P. pfcifferi, Krs." (Bttg.). 



499. PLANOBBIS LEUCOCHILUS, Melv. & Pons. 



1903 Planorbis leucochUus,M-&'P., A.M.N.H.xii.p.607.pl.31,f.3. D.F. 

 Type in British Museum. 

 Hab. NATAL. Killarney Lake, Pieterrnaritzburg (Burnup). 



500. PLANORBIS NATALENSIS, Krauss. 



1848 Planorbis natalensis, Krs., Siidafr. Moll. p. 83. pi. 5, f. 9. D.F. 

 1877 natalis, Krs., Sow., Conch. Icon. pi. 4, f. 32. D.F. 



1883 ,, natalensis, Krs., Cless., Conch. Cab. p. 109. pi. 17 



(1882), f. 3. D.F. 



