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Show 1869.] SURGEON F. DAY O N T H E FISHES OF ORISSA. 373 In one specimen taken in the Cossye the scales were spotted red. Hab. Rivers and tanks in Orissa. 88. LABEO ROHITA, H. Buch. Ruhu (Ooriah). B.iii. D.j^. P. 17. V.9. A.\. C.19. L.L 41. L. tr. |*. Hab. Rivers and tanks in Orissa. 89. LABEO RICNORHYNCHUS, M'Clelland. Kul-ka-batta (Bengali). B.iii. D.i. P. 17. V. 9. A.f. C.19. L. 1.42. L.tr.f. Pharyngeal teeth 5, 4, 2/2, 4, 5. I am doubtful whether this fish should not be referred to Cyprinus ntusiha, H. Buch., which, however, Dr. Giinther considers to be the Labeo morala ; and he remarks, " four barbels as long as the eye ;" whereas Buchanan observes, "it (Cyprinus musiha) differs from the description of the morala in nothing but the want of tendrils." 90. LABEO BOGA, H. Buch. Kala battali (Ooriah). B. iii. D. ^. P. 17. V. 9. A. | C.19. L. 1, 42. L.tr.^. M y reason for being unable to accept the genus Tylognathus, Gunther, is, that " the separation of this genus from Labeo is artificial," being defined in its having nine or less branched rays, down to which number Labeo is included. Thus the existence of an extra ray in the dorsal fin, or whether the last double dorsal ray is regarded as one or two might alter the genus oi the species. The same author has observed respecting the genus Barbus, which has been subdivided into several genera and subgenera, " Nothing would more be contrary to the idea of natural genera, the transition from one extreme species to the other being perfect" (p. 84). Hab. Rivers and tanks of Orissa. Dr. Gunther notices how the subgeneric forms of the genus Barbus, as Barbodes with two pairs of barbels, Capoeta with one pair, and Puntius destitute of any, pass gradually from one into another. But in specimens from India I do not think it will be of common occurrence to find barbels abnormally increased or decreased in numbers. I have tried, but hitherto unsuccessfully, to obtain such specimens. Even if such were frequent, their abnormal or accidental absence will scarcely be considered a sufficient reason against accepting such natural subgeneric divisions of this exceedingly extensive genus. Dorsal ray serrated. 91. BARBUS (BARBODES) CHAGUNIO, II. Buch. Barbus beavani, Giinther. Jerruah (Bengali). PROC. ZOOL. Soc-1869, No. XXV. |