Heterobranchia
National Institutes of Health
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A new extinct freshwater gastropod species of the family Valvatidae, Valvata mathiasi n. sp., belonging to rich molluscan…
Seven species of Dendronotacea and three of Arminacea collected in Ghana between 1963 and 1973 are described. Three are new…
Based on shell characters, two new species of the family Mathildidae Dall, 1889, are herein described from the south-eastern…
Laboratory studies in 1991–2001, supplemented with observations in natural habitat, made it possible to establish the following…
Iolaea amazonica spec. nov. is described from the Miocene Pebas Formation of Peruvian Amazonia. This species adds to three other…
Laboratory culture in 1994–1999 provided the following data on the life cycle of Valvata macrostoma Morch: in favourable food…
italianoNonostante siano note ben 324 specie di “Turbonilla” per le coste dell’Atlantico occidentale, solo venti di queste sono…
EnglishThe present paper records some noteworrhy gastropod species at Cala Iris, a cove on the coast of Torres de Alcala…
Odostomia nuttalli spec. nov. and O. coluhensis spec. nov. are described from the Miocene Pebas Formation of Peruvian and…
The species of the Pyramidellidae collected during several expeditions in the south-eastern part of the North Atlantic Ocean are…