P. and F. Sarasin, "Zur Entwicklungsgeschichte der ceylonesischen Blindwühle, Ichthyophis glutinosa." Ergebnisse naturwiss. Forschungen auf Ceylon, 1887-1890, vol. ii.

[44]

"Beiträge zur Kenntniss der Entwicklungsgeschichte und der Anatomie der Gymnophionen," Zool. Jahrb. Anat. x. 1897, p. 389, and xii. 1899, p. 477.

[45]

The existence of such a form as Typhlotriton, in the adult of which the eyes become closed up, makes such short diagnoses of the families defective, although there is no doubt about the Desmognathine affinities of this genus. See p. [103].

[46]

J. Coll. Japan. i. 1887, p. 269.

[47]

J. Morphol. xi. 1895, p. 375.

[48]