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A. Heller, "Darmschmarotzen" in v. Liemssen's Handb. d. sp. Path. u. Ther. vol. vii.

[178]

Cobbold's Parasites, London, 1879, p. 246.

[179]

Arch. Zool. exper. 1 sér. tom. vii. 1878, p. 283.

[180]

Arch. Zool. exper. 1 sér. tom. vii. 1878, p. 283.

[181]

Balbiani, Anat. Physiol. 7th year, 1870-71, p. 180.