James, D.B. (1985)
Notes on a giant devilray, Manta birostris (Walbaum), caught off Madras.
Indian Journal of Fisheries, 32(4), 492–494
Nair, R.V. & James, D.B. (1972)
On the occurrence of sting-ray spines in the jaws and gills of the hammerhead shark Sphyrna zygaena (Linnaeus).
Journal of the Bombay Natural History Society, 69(2), 432–434