We soon found that this river contained fish in great abundance, and of three kinds at least: namely first, a firm but coarse-tasted fish, having strong scales; this made a groaning noise when on the hook:* secondly, the fish we had found in the Peel, commonly called by the colonists the cod, although most erroneously, since it has nothing whatever to do with malacopterygious fishes:** and thirdly, the eel-fish, which we had caught at the lagoon near Tangulda.*** (*Footnote. Family, Percidae; Genus, Acerina; Subgenus, Cernua, Flem. or Ruffe; Species, Cernua bidyana mihi, or Bidyan ruffe. Colour, brownish yellow, with the belly silvery white. The three middle pectoral rays are branched. The dorsals confluent. The first dorsal fin has 11 spines, the ventrals having 1 + 6 rays, and the anals 3 + 6. See Plate 9. Observation: Bidyan is the aboriginal name.) (**Footnote. Family, Percidae; Genus, Acerina; Subgenus, Gristes, Cuv. or Growler; Species, Gristes peelii mihi, or Cod-perch. Colour, light yellow, covered with small irregular dusky spots, which get more confluent towards the back. Throat pinkish, and belly silvery white. Scales small, and concealed in a thick epidermis. Fins obscure. The dorsals confluent. The first dorsal has 11 spines, and the caudal fin is convex. Plate 6 figure 1. Observation: This fish may be identical with the fish described by MM. Cuvier and Valenciennes Volume 3 page 45 under the name of Gristes macquariensis: but it differs from their description in not having the edge of the second dorsal and anal white; and besides is in many respects very different from the figure given by M. Guerin of the Gristes macquariensis in the Iconographie du Regne Animal.) (***Footnote. Family, Siluridae, Cuv.; Genus, Plotosus, Lacepede, or Eel-fish; Subgenus, Tandanus mihi; Species, Plotosus tandanus mihi; or Tandan Eel-fish. Colour, silvery. The dorsal fin placed halfway between the pectoral and ventral has six rays, of which the middle two are the longest. Plate 6 figure 2. Observation: This is an Asiatic form of fish; whereas the Gristes is an American form. Tandan is the aboriginal name.) PREPARATIONS FOR CROSSING THE RIVER.