4 THE PEJEVALSKY HORSE. 



Kozlov, 1896), and specimens which he placed in the Zoological 

 Museum of the Imperial Academy of Science. He referred to the 

 dorsal stripe and to the stripes on the limbs : features which had 

 already been mentioned by Poliakof. 



The Prjevalsky horse has attracted the attention of a large 

 number of zoologists interested in the classification of mammals. 

 Consequently, the literature dealing with this species of Equus 

 is very rich. In addition to the treatises already quoted, there 

 are statements relating to E. prjevahkii in the works of Noack,* 

 Bohm,t Kobelt,J Lansdell,§ Morgan,|| and Trouessart.^ And, 

 quite recently, short communications by Greve ** and Matschie ft 

 have been published. 



Langkavel, in his interesting work on the Asiatic wild horses, 

 gives an account of the external characters of E. prjevahkii, 

 according to Noack, Grum-Grjimailo and Prjevalsky. 



In many cases the extant descriptions are wanting in accuracy ; 

 and some of tliem are surprising on account of their rather con- 

 siderable subjectivity. The chief point with which fault may be 

 found in the many systematic descriptions is that they are not 

 based upon measurements of particular parts of the body. For 

 instance, according to Noack, the ears of E. prjevalskii are 

 shorter than those of the wild ass and E. hemionus ; according 

 to Prjevalsky, they are smaller than those of the ass ; and, accord- 

 ing to Grum-Grjimailo, they are remarkably short. Character- 

 istics of such great importance as the length of the ears, by which 

 a distinction is made between the horse and the ass, should be 



* Noack (a) Zoologischer Garten, 1884, p. 331. 

 ,, (li) Natur, 1892, p. 362. 

 ,, (c) JVaizir, 1896, p. 264. 



,, (d) Deutsche Rundschau fiir Geographic und Statistik, V. 6, p. 145; 

 VII. 311. 

 t Bohm (a) Geographische JahrbiicJier, V. 11, p. 182. 

 , , \h) Bmsische Revue. V. 13, p. 99. 

 ,, (e) Schweizerisches Centralblait fur Jagd-und Hundeliebhaber, 1892, 



p. 76. 

 ,, (d) Deutsche Jdgerzeitung , V. p. 295. 

 ,, (e) Petermanns Mittheilungen, 1896, p. 78, 



,, (f) Verkandkmqen der Gesellschaft fiir Erdkunde, Berlin, 1883, 

 p. 498. 

 J Kobelt. Zoologischer Garten, 1887- 

 § Landsell. Chmese Central Asia, V. 2, p. 28. 



II Morgan. Annals and Magazine of Natural History, VIII., 1881, p. 16. 

 ^ Trouessart. La Nature, XVIII., 1890, p. 369. 



** Greve. Equus Przewalskii Poljakow ini Moskauer Zoologischen Garten 

 und einige Bemerkungen iiber das wilde Pferd iiberhaupt. 

 Zoologischer Garten, XLII., 1901, pp. 276-282. 

 ti' P. Matschie. Sitzungsber. d. Geaell. Nafurforsch. Freunde, Berlin, 1893, 



