[Development in mosquitoes of 3 filaria of the South American lizards of the genus Oswaldofilaria].

The development of O. petersi, O. belemensis and O. spinosa is similar to that of O. bacillaris: the larvae are in the adipose tissue of various mosquitoes; the infective stages are characterized by the longitudinal salient ridges of the cuticule, the long tail ended by two lappets, the well-developed glandular oesophagus; the female genital anlage lies in the anterior half part of the body, but is not very far from the median line. This character opposes these species to the other viviparous Filariae and stresses the originality of the Oswaldofilariinar.