For the nomenclature of these ossicles, cf. Bridge and Haddon, Proc. Roy. Soc. xlvi. 1889, p. 310.

[657]

On the anatomy of the Characinidae, cf. Sagemehl, Morphol. Jahrb. x. 1885, p. 102, and xii. 1887, p. 307, and Rowntree, Tr. Linn. Soc. ix. 1903, p. 247.

[658]

The end of the tail, when injured, is easily reproduced. As in Lizards, the axis of the regenerated part is an undivided calcified tube.

[659]

Cf. Reinhardt, Arch. f. Naturg. 1854, p. 159.

[660]

For the anatomy and physiology, cf. C. Sachs's posthumous work, Untersuchungen am Zitteraal, edited by E. du Bois-Reymond (Leipzig, 1881).

[661]