Rodríguez-Romero, F., Gasca-Montes de Oca, M. and De la Rosa-Vélez, J. (1991) “Meiotic behaviour during pachytene and diakinesis of Isognomon alatus (Molusca-Isognomonidae) from Veracruz, Mexico”, Ciencias Marinas, 17(1), pp. 73–78. doi: 10.7773/cm.v17i1.781.