Various aspects of the biology of Biomphalaria glabrata (Say, 1818) and Biophalaria tenagophila (D'Orbigny, 1835) (Pulmonata, Planorbidae). I. Lenght of the embryo anal period

Kawazoe, U. (1976). Various aspects of the biology of Biomphalaria glabrata (Say, 1818) and Biophalaria tenagophila (D’Orbigny, 1835) (Pulmonata, Planorbidae). I. Lenght of the embryo anal period. Revista de Saúde Pública, 10(1), 57–64. https://doi.org/10.1590/s0034-89101976000100005