II.—The classification of the teleostean fishes of the order Ostariophysi.—1. Cyprinoidea

References

• On the Weberian mechanism of the Cyprinoidea see especially Sagemehl Morph. Jahrb. 1885 x 102 102 Sörensen, Vid. Selsk. Skr. Copenhagen, (6) vi. 1892, p. 131; Bridge and Haddon, Phil. Trans. clxxxiv. (B), 1893, p. 65; Bloch, Jenaisch. Zeitschr. xxxiv. 1900, p. 1.
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• Sagemehl . 1885 . Morph. Jahrb. , x : 102 – 102 . has written a valuable memoir on the cranial osteology
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• Cf. Bouleng. Camb. Nat. Hist., Fish. 1904 575 575 and Cat. Afr. Freshwater Fish. i. p. 174 (1909); Eigenmann, Reports Princeton Exped. Patagon. iii. Zool. pts. 3 (1909) & 4 (1910).
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• According to Boulenger Cat. African Freshwater Fishes i 179 179 the præmaxillaries are “slightly movable vertically.”
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• Eigenmann and Ward . 1905 . Proc. Washington Acad. , vii : 159 – 159 . give a systematic account of the genera and species
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• Reinhardt . 1854 . Arch. f. Naturg. , : 195 – 195 .
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• On the electric organ, see sachs Untersuchungen am Zitteraal 1881
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• On the structure of this horny pad, see Gratzianow Zool. Anz. 1900 xxiii 66 66
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• Since writing the above I note that Mlle. Popta Notes Leyden Mus. 1906 xxvii 122 122 has described from Borneo Paracrossochilus bicornis, a fish in many ways nearer to Gyrinochilus than either Crossochilus or Discognathus, the lips folding in a similar manner when the mouth is shut.
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• Cf. Vaillant Notes Leyden Mus. 1902 xxiv 133 133 for a synopsis of the genera
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