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.