New Bythinella (Gastropoda, Bythinellidae) species from western Turkey.

Bythinellaanatolica sp. n., Bythinellaistanbulensis sp.

Histopathological effects in tissues of snail Lymnaea stagnalis (Gastropoda, Pulmonata) exposed to sublethal concentration of Thiodan and recovery after exposure.

Histopathological alterations induced by Thiodan in three tissues, namely, digestive gland, foot and mantle, of the freshwater snail Lymnaea stagnalis were investigated. Specimens of Lymnaea stagnalis were exposed to 0.36% and 0.

Histopathological effects of Thiodan on the freshwater snail, Galba truncatula (gastropoda, pulmonata).

Histopathological alterations in three tissues, namely, digestive gland, foot and mantle of the freshwater snail Galba truncatula induced by Thiodan 35 EC, a commercial preparation of endosulfan, were studied in the laboratory. The snails were exposed to five sublethal concentrations of Thiodan, two of them higher concentrations at 0.33% and 0.