However, development of embryo in each egg capsules was only one. On the other hand, many other ova are mixed in the capsules and are probably used to nutrients of development of the embryo. The embryos has external yolk sac. Size at maturity are also discussed. Reproductive biology of the guitarfish, Rhinobatos hynnicephalus from Xiamen coastal waters is described.
Males have two functional testes.
Spermatogenic cells in different seminiferous follicles are at different developmental stages while those in the same follicle are at the same stage. Females have two functional ovaries which attain maturity in May or June. Mature eggs of 22-24 mm in diameter are ovulated in July. Pregnancy takes place again soon after parturition. The number of embryos per uterus has a positive relation with the adult total length.