Urotrygon aspidura, also known as the spiny-tail round ray or Panamic stingray, is a species of stingray native to the eastern-central and south-eastern Pacific, southern Baja, and the Gulf of California. It can grow up to 42 cm. They are severely threatened by shrimpfisheries.
References
^Kyne, P.M., Charvet, P., Areano, E.M., Cevallos, A., Espinoza, M., González, A., Herman, K., Mejía-Falla, P.A., Morales-Saldaña, J.M., Navia, A.F. & Velez-Zuazo, X. 2020. Urotrygon aspidura. The IUCN Red List of Threatened Species