. Catalogue of the fishes in the British Museum. British Museum (Natural History); Fishes. 158 SILTTRID^E. 8. East Indian species. 34. Alius truncatus. Arms truncatus, Cuv. Sf Val. xv. p. 64; Cant. Mai. Fish. p. 256; Bleek. Nat. Tydschr. Nederl. Ind. iii. p. 426, and Ail. Ichth. Silur. p. 33. tab. 56. Cephalocassis truncatus, Bleek. Prodr. Silur. p. 108. B. 6. D. 1/7. A. 23-24. P. 1/9. Vert. 15/33. The height of the body is one-half of the length of the head, which is one-third of the total (without caudal). Head elongate and de- pressed, its greatest depth being two-thirds of its width ; the
. Catalogue of the fishes in the British Museum. British Museum (Natural History); Fishes. 158 SILTTRID^E. 8. East Indian species. 34. Alius truncatus. Arms truncatus, Cuv. Sf Val. xv. p. 64; Cant. Mai. Fish. p. 256; Bleek. Nat. Tydschr. Nederl. Ind. iii. p. 426, and Ail. Ichth. Silur. p. 33. tab. 56. Cephalocassis truncatus, Bleek. Prodr. Silur. p. 108. B. 6. D. 1/7. A. 23-24. P. 1/9. Vert. 15/33. The height of the body is one-half of the length of the head, which is one-third of the total (without caudal). Head elongate and de- pressed, its greatest depth being two-thirds of its width ; the latter is contained once and two-thirds in its length. Snout broad, of moderate length, spatulate, its length being one-fourth of that of the head. The diameter of the eye is one-seventh or one-tenth of the length of the head; interorbital space convex; the upper eyelid is broad, transparent. The teeth on the palate are villiform and confined to the palatine bones, .where they form an oblique elliptic short patch on each side. The maxillary barbels extend to, or scarcely Q <\\ to, the operculum ; the outer and inner mandi- bulary barbels are nearly of equal length, half as long as the head. The crown of the head is granular; the occipital process is narrow, oblong, about thrice as long as broad; basal bone of the dorsal spine small, cres- cent-shaped. Dorsal spine strong and long, four- fifths of the length of the head, serrated along both edges ; the first soft dorsal ray as long as the head. Adipose fin very short and elevated. Caudal forked, with the lobes obtusely rounded, short, its length being one-half of that of the head ; the upper lobe sometimes produced into a short filament. Pectoral spine as strong as, but much shorter than, that of the dorsal fin, serrated along both edges. Ventral shorter than pectoral. Fins whitish. East Indies. a-b. From 9 to 12 inches long. Siam. Purchased of Mr. Jamrach. &-d. Adult and half-grown: skins. Pinang. From Dr. Cantor's Colle
Size: 1114px × 2243px
Photo credit: © Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorbritishmuseumnatur, bookcentury1900, booksubjectfishes
