. Catalogue of the fishes in the British Museum. British Museum (Natural History); Fishes. 59. ARIUS. 161 39. Arius leptonotacanthus. Anus leptonotacanthus, Bleek. Verh. Bat. Gen. xxii. Madura, p. and Atl. Ichth. Silur. p. 32. tab. 54. fig. 2. Cephalocassis leptonotacanthus, Bleek. Prodr. Silur. p. 105. D. 1/7. A. 20. P. 11, 1/7. A. 20. P. 1/11. The height of the body is contained four times and two-fifths in the total length (without caudal), the length of the head three times ; head broader than high, its greatest width being contained once and two-fifths in its length. The diameter of the e
. Catalogue of the fishes in the British Museum. British Museum (Natural History); Fishes. 59. ARIUS. 161 39. Arius leptonotacanthus. Anus leptonotacanthus, Bleek. Verh. Bat. Gen. xxii. Madura, p. and Atl. Ichth. Silur. p. 32. tab. 54. fig. 2. Cephalocassis leptonotacanthus, Bleek. Prodr. Silur. p. 105. D. 1/7. A. 20. P. 11, 1/7. A. 20. P. 1/11. The height of the body is contained four times and two-fifths in the total length (without caudal), the length of the head three times ; head broader than high, its greatest width being contained once and two-fifths in its length. The diameter of the eye is one-sixth of the length of the head, and two-sevenths of the width of the interorbital space. The occipital process is triangular, shorter than broad, ele- vated along the middle; the basal bone of the dorsal spine small. Snout twice as long, as the eye. The teeth on the palate are villiform, and form two separate elongate patches, slightly bent, narrow,and not much shorter than the eye, somewhat convergent posteriorly. The maxillary barbels extend to the base of the pectoral, the outer ones of the mandible to the gill- opening. Lateral line bifurcate at the base of the caudal fin. The soft dorsal fin as high as the body, with its spine rather slender, two- thirds as long as the head, and serrated posteriorly. Adipose fin much shorter than the dorsal. Pectoral fins two-thirds as long as the head ; their spine is stronger, but little shorter than that of the dorsal fin. Caudal with the lobes pointed, its length being two-elevenths or one- sixth of the total. Fins yellowish. Madura. a. Type of the species. From Dr. P. v. Bleeker's Collection. 40. Arius melanochir. Arius melanochir, Bleek. Nat. Tydschr. Nederl. Ind. iii. p. 590. Cephalocassis melanochir, Bleek. Prodr. Silur. p. 103, and Atl. Ichth. Silur. p. 30. tab. 52. B. 6. D. 1/7. A. 18. P. 1/12. The height of the body is contained four times and two-thirds in the total length (without caudal), the length of the head fou
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