See also Kurtus indicus, p. [688].
Smith Woodward, op. cit. p. 412.
Boulenger, Poiss. Bass. Congo, p. 10. For a list of the more important papers, see pp. 18-19 of that work.
Mr. Boulenger informs me that he regards these spines as modified ridge scales or fulcra. The latter are median spine-like or Λ-shaped scales in relation with the anterior margins of the median fins in some Crossopterygii (e.g. Osteolepidae) and in many Chondrostei and Holostei.
Boulenger, op. cit. p. 20 et seq.; id. Ann. Mus. Congo, Zool. (1), i. Fasc. 4, Bruxelles, 1899, p. 61; ii. Fasc. 2, 1902, p. 23.