. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. ^ 3 MSI /vA/: .. v ~%r U* ? ....- Neill & Co., Ltd. A Monograph of the Marine Fishes of South Africa. 979 the species among several genera. Began and Boulenger, however,recognise only two genera : Diodon and Lyosphaera. The latter isdistinguished by the very fine and feeble spines attached to paperyplates, and very short anal fin of only 4 rays. Gen. Diodox Linn. 1758. Linne, Syst. Nat., ed. 10, p. 335. Body stout, with strong spines, which are either 2- or 3-rooted ;the 2-rooted spines being movable. Nostrils in a t
. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. ^ 3 MSI /vA/: .. v ~%r U* ? ....- Neill & Co., Ltd. A Monograph of the Marine Fishes of South Africa. 979 the species among several genera. Began and Boulenger, however,recognise only two genera : Diodon and Lyosphaera. The latter isdistinguished by the very fine and feeble spines attached to paperyplates, and very short anal fin of only 4 rays. Gen. Diodox Linn. 1758. Linne, Syst. Nat., ed. 10, p. 335. Body stout, with strong spines, which are either 2- or 3-rooted ;the 2-rooted spines being movable. Nostrils in a tubular 10-15. A 10-15. Key to the South African species. I. Nasal tube simple, with 2 openings. A. Spines mostly 2-rooted, movable (Diodon). 1. Spines not compressed. a. Frontal spines longer than others . holacantlms. b. Frontal spines shorter than others. i. Small round black spots only . . hystrix. ii. Large irregular black bands and spots as well as smaller ones ....... maculatus. 2. Spines strongly compressed ..... maculifer. B. Spines mostly 3-rooted, immovable (Chi
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