STEHMANN, M. (1981)
Batoid Fishes - technical terms and principal measurements, key with picture guide to families, list of species (8 pp); Pristidae (8 pp); Rhinobatidae (10 pp); Rhynchobatidae (3 pp); Platyrhinidae (2 pp); Torpedinidae (2 pp); Rajidae (4 pp); Dasyatidae (11 pp); Gymnuridae (6 pp); Myliobatidae (9 pp); Rhinopteridae (4 pp); Mobulidae (10 pp). In: FISCHER, W., BIANCHI, G. & SCOTT, W.B. (Eds): FAO species identification sheets for fishery purposes. Eastern Central Atlantic (Fishing areas 34, 47 in part), vol. 5. FAO Rome 1981 (7 vols).