pp. 115 -

The information on reproductive characteristics of more than 100 species of the pulmonate molluscs (clutch size, egg size, hatching success, etc.) is summarized. It is shown that the pulmonates demonstrate a very wide range of reproductive strategies that serve to enhance the survival of species in different (sometimes very unfavorable) environmental conditions.

Анализ репродуктивных показателей легочных моллюсков: мини-обзор
Крамаренко С. С. ;