Note 45 — MALACOPTERYGII.

I notice this circumstance, because Mr. Lowe, in the “Proceedings of the Zoological Society,” (1839, p. 89.) has briefly described two species of this fish, which he calls E. Remora and E. pallida respectively, the former having the tongue smooth, and the latter rough in the middle, besides other differences.

The above specimen obtained by Mr. Darwin, as well as two others in the Museum of the Cambridge Philosophical Society, have the tongue rough; though in their other characters, especially colour, they would seem to be Mr. Lowe’s Remora. Cuvier, in his “Regne Animal,” appears to consider the rough tongue as characteristic of the whole genus.