By David S Brown
The 1st 1/2 this booklet is basically a scientific survey of the snails, starting with glossaries, keys for identity to genera and a record of species. this is often through a synopsis of species, with short notes on ecology, distribution and parasites. Relationships are then defined among snails and schistosomes and with different parasites. The ebook is going directly to give some thought to the criteria affecting snail populations and attainable tools for inhabitants keep watch over.
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Extra resources for Freshwater Snails Of Africa And Their Medical Importance
Riperti Samé-Ekobo & Kristensen C. -B. C. exarata (Martens) C. elata Dautzenberg & Germain C. -B. C. langi Pilsbry & Bequaert C. johnstoni Smith C. mweruensis Smith C. smithi Ancey C. nsendweensis Dupuis & Putzeys C. -B. C. guillemei Bgt C. athiensis Verdcourt C. hemmingi Verdcourt Cleopatra bulimoides (Olivier) C. ferruginea (I. Lea) C. africana (Martens) C. rugosa Connolly Pseudocleopatra togoensis Thiele P. -B. P. -B. P. -B. Potadomoides pelseneeri Leloup Pot. bequaerti (Dautzenberg & Germain) Pot.
Ripert, 1992) and Cameroon: Bibundi (Boettger, 1905) and Victoria, on aquatic plants (DBL). Neritilia consimilis Martens, 1897a. Type locality: Mauritius, Creole River. 5 mm wide. Shell so like that of N. manoeli that it could be the same species; examples from Mauritius and Anjouan Island described by Brown (1980b), taxonomic relationships discussed by Starmühlner (1983). HABITAT AND DISTRIBUTION. On rocks in streams up to 120 m altitude in Anjouan (Starmühlner, 1976a). , 1986); Madagascar (Fischer-Piette & Vukadinovic, 1973); Mauritius, Réunion and Seychelles (Starmühlner, 1976b, 1983).
180) B Penis tissues not sclerotised, though there is a separate stylet or cuticular cap; opening subterminal .......................................................... 10 10 A Penis with large dagger-like stylet (Fig. Gyraulus (p. 185) B Penis with small cap-like stylet (Fig. Afrogyrus (p. 176) Family PHYSIDAE A Shell broad. Copulatory organ with large preputial gland, visible externally (Fig. 13b). Physa (p. 248) B Shell more slender, fusiform. Copulatory organ without an externally visible gland.
Freshwater Snails Of Africa And Their Medical Importance by David S Brown