vespertilio, Rhinoptera Girard [C. F.] 1856:137 [Proceedings of the Academy of Natural Sciences of Philadelphia v. 8; ref. 1809] Tomales Bay, California, U.S.A. Holotype (unique): whereabouts unknown. Subjectively invalid; secondarily preoccupied by Myliobatis vespertilio Bleeker 1852 when in Myliobatis; replaced by Myliobatis californicus Gill 1865. 2°Homonym. Current status: Synonym of Myliobatis californica Gill 1865. Myliobatidae. Habitat: marine.