Dasyatis macrophthalma sp. n.: A New Species of Stingray (Chondrichthyes: Dasyatidae) from the Southwestern Atlantic
A new species of Dasyatis is described from the southwestern Atlantic, off northeastern Brazil. It differs from its congeners by its relatively large eyes, presence of well-developed dorsal and ventral finfolds on tail ending approximately on the same vertical line, dorsal and ventral color patterns, and possession of distinct ventral markings on disc. Adults are apparently associated with coral or sandstone reefs. Uma nova espécie de Dasyatis é descrita do Atlântico ocidental, da costa nordeste do Brasil. Ela difere de suas congêneres pelos olhos relativamente grandes, pela presença de membranas dorsais e ventrais bem desenvolvidas na cauda, terminando aproximadamente na mesma linha vertical, pelo padrão de colorido dorsal e ventral, e por possuir manchas distintas ventrais no disco. Adultos são aparentemente associados a recifes coralinos ou areníticos.Abstract

Holotype of Dasyatis marianae n. sp., dorsal view (MNRJ 7967, 235 mm DW)

Geographic distribution of examined specimens of Dasyatis marianae n. sp. Triangle indicates the type locality. Circles may represent more than one specimen or locality

Paratype of Dasyatis marianae n. sp., dorsal view (UERJ 1700, 247 mm DW)

Paratype of Dasyatis marianae n. sp., dorsal view (ZUEC 3149, 224 mm DW)

Ventral color pattern of Dasyatis marianae n. sp. (UERJ 1700, paratype)