The Non-Marine Mollusca of Portuguese East Africa. 107 



bicula kirki (Prime) ; and a shell which Dohrn identified as Cleopatra 

 bulimoides (Oliv.). 



Achatina imnthera (Fer.) and lamarckiana Pfr. were both included in 

 Dohrn's list, but as the latter is a synonym of the former it need not enter 

 into consideration. 



Only six other expeditions of the nineteenth century added much to 

 our knowledge of Portuguese East African mollusca. 



' Among shells sent by Plant to Cuming in the early fifties, as from Cape 

 Delagoa, were Gulella kraussi (Pfr.) and wahlbergi (Krs.) ; TracJiycystis 

 aenea (Krs.) ; Achatina granulata and nafalensis Pfr. He also furnished 

 these species at the same time from " Cape Natal," and as three of them 

 have not been found subsequently near Delagoa Bay, it is not improbable 

 that the records of the localities became mixed. 



In 1879 J. S. Gibbons published a list of species collected by himself 

 between Delagoa Bay and Zanzibar, while other of his finds were described 

 by J. W. Taylor and W. Nelson ; fresh additions were Achatina immaculata 

 (Lam.), Rhachidina mozambicensis (Pfr.),* Pseudoglessula gibbonsi (Taylor), 

 Veronicella natalensis (von Eapp), Tropidophora zanguebarica (Petit), and 

 kraussiana (probably a misidentification of insularis) (Pfr.), while to these 

 must be added a slug which Gibbons considered to be Urocyclus flavescens, 

 but which has since been made the type of a new genus under the name of 

 Kirkia gibbonsi (see p. 138). 



Capello and Ivens travelled across Africa, just north of the Zambesi, in 

 1884-85, and a first instalment, never continued, of their collection was 

 published by Furtado in 1886. It added nothing in reality, however, to 

 the fauna now under notice, since such new species and varieties as were 

 founded on examples from Portuguese East African territory have subse- 

 quently been relegated to synonymy. 



Dr. Stuhlmann visited the south-east coast in the spring of 1889, and 

 a list of 10 species, given by von Martens in 1897, added Isidora forskali 

 Ehrn., Tropidophora letourneuxi (Bgt.), and Cleopatra ferruginea (Lea) 

 [recorded as amoena Morel.], to the local list. 



Dr. Penther collected in South Africa in 1897, and among his valuable 

 acquisitions, recorded by Sturany in 1898, the following additions were 

 ascribed to the Delagoa district : — 



Gulella perissodonta (Stur.). 



,, perspicuaeformis (Stur.). 

 Natalina caffrula, M. and P. 

 Pseudoglessula movenensis (Stur.) (a synonym of boivini, Morelet). 



* Described from the Cuming collection in 1846, but without mention of the collectors 

 name. 



