Note 253 — Chapter V · REPRODUCTION—DEPOSITION OF EGGS—DEVELOPMENT OF THE FERTILISED OVUM—DIFFERENCES OF SEX—DIOECIOUS AND HERMAPHRODITE MOLLUSCA—DEVELOPMENT OF FRESH-WATER BIVALVES
Reading edition
Jeffreys, Brit. Conch. iii. p. 359; Sauvage, Journ. de Conchyl. xxi. p. 122.