Lymnaeidae


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Lymnaeidae

 

a family of gastropods. The shell, which is spirally coiled and relatively high (in the common freshwater snail, up to 7 cm), usually has a large opening. The eyes are located at the base of the tentacles. The organ of respiration is a lung, which in some species fills with water and functions as a gill. Lymnaeidae are hermaphrodites. Fertilized ova are deposited in the form of mucoid ribbons.

Lymnaeids feed on algae, animals, plant remains, and the tissues of higher plants. They usually inhabit fresh waters and are only rarely encountered in saltwater lakes and the coastal zones of brackish inland seas (for example, the Baltic Sea). There are about 120 species of lymnaeids. The USSR has more than 30 species, united in eight or nine subgenera of the genus Lymnaea. (The subgenera are often considered separate genera.) Almost all lymnaeids are intermediate hosts of worms that are parasites of man and of domestic and wild animals. For example, Lymnaea truncatula transmits the causative agents of fascioliasis of cattle.

References in periodicals archive ?
Presencia de caracoles Lymnaeidae con formas larvarias de Fasciola hepatica en altitudes sobre los 4000 msnm en la sierra sur del Peru.
pallida, y que esta se encuentra bien establecida en ambientes donde suelen ser mas comunes otros caracoles de las familias Lymnaeidae, Physidae y Ampullariidae.
The lymnaeidae of North and Middle America: recent and fossil.
Distribution of Lymnaeidae (Mollusca: Pulmonata), intermediate snail host of Fasciola hepatica in Venezuela.
2009) hallaron en anos recientes, formas larvarias de Fasciola hepatica en caracoles Lymnaeidae por encima de los 4000 msnm, probablemente debido al incremento de las temperaturas en zonas alto andinas, usualmente muy frias, causado por el calentamiento global (Mas-Coma et al.
For stable-isotope-analysis, we collected adult Belostoma (n = 9 individuals), cave mollies (Poecilia mexicana; n = 5 individuals), dipteran larvae (n = 3 pooled samples of multiple individuals of Goeldichimnomus fulvipilus), snails (n = 1 pooled sample of multiple individuals of a Lymnaeidae species), and bacterial mats (n = 1).
Los hospedadores intermediarios son moluscos de la familia Lymnaeidae (Georgi y Georgi 1990) y en Costa Rica se han identificado Pseudosuccinea columella y Fossaria cubensis como posibles involucradas en la transmision en Turrialba (Ramon et al.
Planorbidae, Physidae, Viviparidae, Lymnaeidae and Thiaridae.
The miracidia then penetrate, and further develop in, snails of the family Lymnaeidae.
All the ganglia are arranged in a pentaganglionate visceral loop that is similar to those identified in Scissurellidae (Vetigastropoda), Viviparidae (Architanenioglossa), Cerithiidae (Caenogastropoda), Cingulopsidae (Caenogastropoda), Mathildidae (Allogastropoda), Pyramidellidae (Allogastropoda), Acteonidae (Opisthobrachia), Philinidae (Opisthobrachia), Chilinidae (Basommatophora), and Lymnaeidae (Basommatophora) (Haszprunar 1988).
Mesoveliidae, Hydrometridae, Gerridae, Nepidae, Naucoridae, Pleidae, Notonectidae, Corixidae (Hemipteros); Helodidae, Hydrophilidae, 3 Hygrobiidae, Dytiscidae, Gyrinidae (Coleopteros); Valvatidae, Hydrobiidae, Lymnaeidae, Physidae, Planorbidae, Bithyniidae, Bythinellidae, Sphaeriidae (Moluscos); Glossiphoniidae, Hirudidae, Erpobdellidae (Hirudineas); Asellidae, Ostracoda (Crustaceos).