First description of the embryos of the stingray Gymnura altavela (Linnaeus, 1758) (Myliobatiformes: Gymnuridae), a species at risk of extinction.

Summary: This contribution presents a brief morphometric description of adult females and embryos of the ray Gymnura altavela. Two females, pregnant with a total of five embryos, were captured in Rio de Janeiro, southeastern Brazil, and their morphometry was compared to their respective embryos. The embryos showed higher body proportions (%DW) than adults, regardless of sex, which may be an effect of ontogeny. [ABSTRACT FROM AUTHOR]