The Variation of Animals and Plants Under Domestication, Vol. I.

by Charles Darwin

[55] Rüppel, 'Neue Wirbelthiere von Abyssinien,' 1835-40; 'Mammif.,' s. 39, pl. xiv. There is a specimen of this fine animal in the British Museum.

[56] Even Pallas admits this: see 'Act. Acad. St. Petersburgh,' 1780, p. 93.

[57] Quoted by I. Geoffroy, 'Hist. Nat. Gén.,' tom. iii. p. 453.

[58] F. Cuvier, in 'Annales du Muséum,' tom. xviii. p. 337; Godron, 'De l'Espèce,' tom. i. p. 342; and Col. Ham. Smith, in 'Naturalist's Library,' vol. ix. p. 101.

[59] Isid. Geoffroy Saint Hilaire, 'Hist. des Anomalies,' 1832, tom. i. p. 660. Gervais, 'Hist. Nat. des Mammifères,' tom. ii., 1855, p. 66. De Blainville ('Ostéographie, Canidæ,' p. 137) has also seen an extra molar on both sides.

[60] 'Ostéographie, Canidæ,' p. 137.

[61] Würzburger, 'Medecin, Zeitschrift,' 1860, B. i. s. 265.

[62] Mr. Yarell, in 'Proc. Zoolog. Soc.,' Oct. 8th, 1833. Mr. Waterhouse showed me a skull of one of these dogs, which had only a single molar on each side and some imperfect incisors.

[63] Quoted in 'The Veterinary,' London, vol. viii. p. 415.

[64] 'Hist Nat. Général,' tom. iii. p. 448.