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Achatina Africa anal band barbels BARBUS base Blgr border Bouleng branched British Museum brown Burnup CAPE caudal peduncle Colour of preserved Conch Connolly D.F. Type dark Depth of body diameter of eye distance dorsal Durban Ennea equal extending Fish Fresh Genus Gray Günth Helix Hist HOPE interorbital width lateral line length excluding caudal length of head less lips long as broad long as deep longer longest lower Melv Moll mouth Müll NATAL nearly origin outer Pectoral Peters Pilsb pointed Pons posterior preserved specimen Proc Pupa rays reaching River root rounded rows scales short shorter side slightly Smith snout soft South species spine Stur teeth total length excluding Transvaal twice Type in British upper ventral viii Zool