HALSTEAD, B.W. & MODGLIN, F.R. (1950)
A preliminary report on the venom apparatus of the bat-ray, Holorhinus californicus. Copeia, 1950 (3): 165–175
ROEDEL, P.M. & RIPLEY, W.E. (1950)
California sharks and rays. California Fish and Game Bulletin, 75: 88 pp., 65 figs
CAMPBELL, B. (1951)
The locomotor behavior of spinal elasmobranchs with an analysis of stinging in Urobatis. Copeia, 1951 (4): 277–284
DOI: 10.2307/1438312
HERALD, E.S. & RIPLEY, W.E. (1951)
The relative abundance of sharks and bat stingrays in San Francisco Bay. California Fish and Game, 37 (3): 315–329
ALEXANDER, C.G. (1953)
Five new species of Acanthobothrium (Cestoda: Tetraphyllidea) from southern California rays. Journal of Parasitology, 39 (5): 481–486
HERALD, E.S. (1953)
The 1952 shark derbies at Elkhorn Slough, Monterey Bay, and at Coyote Point, San Francisco Bay. California Fish and Game, 39 (2): 237–243
ROEDEL, P.M. (1953)
Official common names of certain marine fishes of California. California Fish and Game, 39 (2): 251–262
BALDWIN, E. (1960)
Ureogenesis in elasmobranch fishes ? Comparative Biochemistry and Physiology, 1 (1): 24–37
DOI: 10.1016/0010-406X(60)90005-0