^ Fauna: Invertebrates 



OPISTHOBRANCHIATA (Marine Gasteropods) 

 Sipho7iaria grisca\ 



S. vcnosa -Limpet-like in shell. 



Gadinia afra ) 



PULMONATA (Snails, Slugs, etc.) 

 Eiiiica libcriaiia. 

 Streptaxis monroviana. 

 Stenogyra involuta. 

 S. striata. 

 Achat ina variegata. 

 A. purpurea. 

 A. knorri. 



Veronicella pleuroprocta. 

 L iin icola ria turbiua ta . 

 Peridcris torrida. 

 P. iiiterstincta. 



Sub-Class: PELECYPODA 



FILIBRANCHIATA (Mussels, etc.) 

 Mytilus scnegaleiisis. 

 M. var. seinistriata. 

 M. pcnia. 



PSEUDOLAMELLIBRANCHIATA (Oysters) 

 Ostrea sp. 



EULAMELLIBRANCHIATA (Unio Shells, etc.) 

 yEtJieria pluuibea (Fresh-water Oysters) 

 Dreissensia africana. 

 Cyrenoida dupontia. 

 Meretrix tripla. 



CRUSTACEA 



MALACOSTRACA (Crabs, Crayfish, etc.) 



BRACHYURA (Crabs) 



Cardisonia arniatum (big land Crab). 

 Sesarma africana\ 



S. angoktisis \ Small land Crabs. 



S. buettikoferi ) 



