. Bulletin of the British Museum (Natural History). 288 FRESHWATER GASTROPOD MOLLUSCS who carried out a survey, under the auspices of the World Health Organization, to determine the incidence and mode of transmission of human Map I. Ethiopia and surrounding territories (redrawn from Ayad, 1956). Family Planorbidae Bulinus sericinus (Jickeli, 1874) Isidora sericina Jickeli, 1874- Isidora shackoi Jickeli, 1874, Isidora sericina var. harpula PoUonera, 1898. Isidora shackoi mut. minima PoUonera, 1898. Bullinus (Isidora) mtissolinii Piersanti, 1940. Localities (figures in brackets
. Bulletin of the British Museum (Natural History). 288 FRESHWATER GASTROPOD MOLLUSCS who carried out a survey, under the auspices of the World Health Organization, to determine the incidence and mode of transmission of human Map I. Ethiopia and surrounding territories (redrawn from Ayad, 1956). Family Planorbidae Bulinus sericinus (Jickeli, 1874) Isidora sericina Jickeli, 1874- Isidora shackoi Jickeli, 1874, Isidora sericina var. harpula PoUonera, 1898. Isidora shackoi mut. minima PoUonera, 1898. Bullinus (Isidora) mtissolinii Piersanti, 1940. Localities (figures in brackets indicate the numbers of individuals in the samples) I (296) ; 2 (48) ; 3 (21) ; 4 (6) ; 5 (5). Most of the specimens were collected at the margins ot streams on vegetation and Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original British Museum (Natural History). London : BM(NH)
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Keywords: ., 1962, boo, bookauthorbritishmuseumnaturalhistory, bookcentury1900
