Immature I Aqueous and small testis, genital ducts poor development, small and flaccid claspers, rhipidion
close, no seminal fluids.
In males, the length of claspers was measured and the maturity was determined by the presence of calcified claspers, which must rotate 180[degrees] relative to their normal position, as well as a freely opening rhipidion
and fully developed siphon sacs (Clark & von Schmidt 1965; Pratt 1979).
Males were deemed mature if they possessed hardened claspers and the rhipidion
Males presenting uncalcified claspers that did not rotate easily, an unopened rhipidion
and sperm absent from the seminal vesicle were considered juveniles; whereas adults presented calcified claspers with easy rotation, an open rhipidion
and spermatozeugamata in the seminal vesicle (Pratt 1979).