1902.] Allen, Zimmer maims ' Zoologicz Geographicce,' etc. 17 



Antilope leucopus (p. 5 41)= Antilope pictus Pallas, i777=Antilope 



tragocamelus PALLAS, 1776 Boselaphus tragocamelus (Pall.}. 

 Antilope tzeiran (p. 543) Antilope gutturosa Pallas, i777=Gazella 



gutturosa (Pall.). 

 Antilope koba (p. 545) = Antilope koba Erxleben, i777 = ?Antilope 



korrigum Ogilby, 1836. 

 Mus oeconomus (p. 668)=Mus oeconomus Pallas, i778=Microtus 



oeconomus (Zimm.). 



The Piloris, or Rat musque' of Rochefort, and the Potto are 

 omitted from the above list as not being binominally named. 



In addition to the above list of specific names there are 

 four superspecific names which require consideration in refer- 

 ence to their tenability as designations for genera. These are 

 Marmotta (p. 509), Jerboa (p. 522), Dama (p. 532), and 

 Capreolus (p. 533).' 



In treating of the Mures Zimmermann divided the genus 

 Mus into two sections, "A. Marmotta" and " B. Mures proprie 

 sic dicti." Under Marmotta he placed three species only, 

 namely, (i) Mus marmota Linn., (2) Mus monax Linn., and 

 (3) Mus citellus Linn., all Sciuromorphs. Under the second 

 section he placed 26 species, all Murine except No. 26, the 

 Sciurus striatus Linn. 



To this extent his classification is an improvement on that 

 of Linnaeus. It is also to be noted that his use of Marmotta 

 for a superspecific group carries back the name from Blumen- 

 bach (1799) to a date (1777) three years prior to the intro- 

 duction of Arctomys (Schreber, 1780) for practically the same 

 group. 



Jerboa, named on page 522, and acccompanied by a formal 

 diagnosis, includes five species of which the first three are 

 Dipodine, the first being Mus jaculus Linn. Jerboa is almost 

 the exact equivalent of Jaculus Erxleben, of the same date, 

 even to the inclusion of the Giant Kangaroo (Macropus) by 

 both authors. The constituents of the two are found, on 



identified with the Mexican form of the Pronghorn (Antilocapra americana). As 

 Pennant' s description scarcely applies at all to this animal, but is a vague conglomera- 

 tion of references to various species of deer, with a figure of malformed antlers from 

 an unknown locality, the name Cervus mexicanus of Zimmermann and Gmelin is 

 clearly untenable in nomenclature. 



1 See below for remarks on Dama and Capreolus. 

 [January, iqo2.~] 2 



