106 Transactions of the Royal Society of South Africa. 



collecting on the immediately opposite side of the continent except the 

 Englishman, Sir John Kirk, and the German, Dr. W. Peters. 



The latter travelled along the east coast and up the Zambesi between 

 1843 and 1847, and his collection, lists of which were published by von 

 Martens in 1860, 1869, and 1879, seems to have totalled the thirty-four 

 following non-marine species : — 



Ledoulxia inozambicensis (Pfr.). 



„ albopicta (Mts.). 



;» jenynsi (Pfr.). 

 Trachycystis pinguis (Krs.). 

 Ehachis punctata (Anton). 

 ,, petersi (Pfr.). 

 ,, catenata (Mts.). 

 Rhachidina melanacme (Pfr.). 



,, spihgramma (Mts.). 



Rhachistia sticta (Mts.). 

 Achatina panthera (Fer.). 



,, ^jefersi Mts. (a synonym of A. glutinosa Pfr.). 

 Urocyclus fasciatus (Mts.). 



,, flavescens (Kfstn.). 

 Veronicella petersi (Mts.). 

 Onchidium peroni Cuv. 

 Limnaea natalensis Krs. 

 Physa mosamhiquensis Cless. 

 Physopsis africana Krs. 

 Tropidopliora ligata (Miill.). 



Melanoides tuberculatus (Miill.) (cum M. inlmmbanicus (Mts.), a large form of tuberculatus). 

 Tiara vouamica Bgt. (recorded by von Martens under the name of Melania crenularis 



Desh.). 

 Ampullaria largillierti Phil. 

 Lanistes ovum (Ptrs.). 



„ purpureus (Jonas) (a synonym of L. olivaceus Sow.). 

 Theodoxus natalensis (Rve.). 



,, knorri (Reel.). 



Truncatella teres Pfr. 

 Spatha wahlbergi (Krs.). 



,, petersi Mts. 

 Indonaia mossambicensis (Ptrs.). 

 Mulela coelestis Lea (a synonym of M. rostrata Rang). 

 Corbicula astartina Mts., and 



„ radiata (Parr.), which must now be known as africana Krs. 



Kirk, who only died as recently as January 1922, did much exploring 

 on Livingstone's stafi between 1858 and 1863, and was subsequently attached 

 to the British Embassy at Zanzibar from 1866 till 1887. His early concho- 

 logical discoveries were recorded by Dohrn, Gray, Lea, and Prime, and 

 added the 5 following species to the fauna under notice : Urocyclus kirhi 

 Gray ; Pseudoglessula kirhi (Dhrn.) ; Tropidophora calcarea (Sow.) ; Cor- 



