Observations on Seasonal Dynamics of Age Structure and Reproduction of Pupilla Muscorum L. (gastropoda: Pulmonata: Pupillidae)

Potassium Movements in a Central Nervous Ganglion of Limnaea Stagnalis (l.) (gastropoda :pulmonata)

The annual reproductive cycle of the snail Megalobulimus abbreviatus (Bequaert, 1948) (Gastropoda, Pulmonata).

Morphological changes in the sexual organs of the pulmonates were observed throughout a year and correlated with reproductive-cycle periods. Reproductive-organ weights of the snail Megalobulimus abbreviatus were recorded seasonally and gonad sections were analyzed morphologically. The weights were used to obtain the organosomatic index. Mean oocytic diameter and oocytic maturation index were ba...

Calcium regulation in the freshwater mollusc, Limnaea stagnalis (L.) (Gastropoda: Pulmonata). I. The effect of internal and external calcium concentration.

The Distribution, Biology, Population Dynamics and Harmfulness of Arion Lusitanicus Mabille, 1868 (gastropoda: Pulmonata: Arionidae) in Poland

Population studies on Arion lusitanicus, a slug species introduced into Poland, were carried out over the last decade. The slug occurs commonly in some areas and spreads out relatively quickly. It has an annual life cycle with eggs, and immature individuals overwinter. In the end of July A. lusitanicus begins copulation and three weeks later it lays eggs from which the first offspring hatch wit...

Habitat Characteristics and Conservation of the Genus Ashmunella (gastropoda: Pulmonata: Polygyridae) of White Sands Missile Range (nm and Tx)