3 30 SMITHSONIAN MISCELLANEOUS COLLECTIONS [vOL. 45 



Major (Trans. Linn. Soc. London, 2d sen, vii, ZooL, November, 1899, p. 

 514) uses it as a subgenus of Syhilagiis for " S. palttstris. aquaticus, &c." 



Miller and Rehn (Proc. Boston Soc. Nat. Hist., xxx, pp. 183-184, Decem- 

 ber 27, 1901) have included under Limnolagns as a subgenus of Lepus the fol- 

 lowing species: aquaticus Bachman, aquaticus attzvateri Allen, palustris 

 Bachman, palustris paludicola Miller and Bangs, telmalemonus Elliot, and 

 truei Allen. 



I consider Limnolagns as a genus embracing all the species just mentioned 

 as found in Miller and Rehn, except tnici Allen which is a member of the 

 genus Sylvilagus. 



MACROTOLAGUS 



Proposed by Mearns (Sci., n. s. l, p. 698, June 21, 1895; Proc. U. S. N. M., 

 XVIII, p. 552, June 24, 1896) as a subgenus of Lepus for the jackass hares of 

 southwestern United States and Mexico. Lepus alleni Mearns is designated 

 as the type. The following species are included by him in this subgenus : 

 callotis, gaillardi, alleni (type), merriami, melanotis, griseus, texianiis, 

 ercniicns, deserticola, and calif amicus. 



Trouessart (Catalogus Mammalium, i, fasc. iii, 1897, pp. 660-662) includes 

 under Macrotolagus as a subgenus of Lepus, the following species : alleni 

 Mearns, callotis Wagler, gaillardi Mearns, merriami Mearns, melanotis 

 Mearns, texianus Waterhouse (including the subspecies crcmicus Allen, 

 griseus JNIearns, and deserticola Mearns) californicus Gray, martirensis 

 Stowell, insularis Bryant. 



The term is used by Major (Trans. Linn. Soc. London, 2d sen, vii, Zool., 

 pp. 468, 469, November, 1899) as a subgenus of Lepus, for apparently the same 

 group of hares that Mearns applied it to. 



Miller and Rehn (Proc. Boston Soc. Nat. Hist., xxx, pp. 1S0-183, Decem- 

 ber 27, 1901) place in the subgenus Macrotolagus the following species: alleni 

 Mearns, alleni palitans Bangs, asellus Miller, californicus Gray, californicus 

 xanti Thomas, callotis Wagler, gaillardi Mearns, insularis Bryant, 

 martirensis Stowell, melanotis Mearns, merriami Mearns, texianus Water- 

 house, texianus deserticola Mearns, texianus ereniicus Allen, texianus 

 griseus Merriam. 



It is used in the present paper in the same sense as by Miller and Rehn. 



It is interesting to note that the hares of this subgenus were recognized by 

 Baird (Mammals of North America, p. 574, 1857) as forming a distinct group 

 and constituting his "Lepus Section B." 



MAMLEPUS 



Used by A. L. Herrera (Sinonimia vulgar y cientifica de los principales 

 vertebrados mexicanos, p. 11, 1899) as a name in a new system of nomen- 

 clature for the broad genus Lepus of Linnsean nomenclature. 



MICROLAGUS 



Prop'osed by Trouessart (Catalogus Mammalium, i, fasc. iii, p. 660, 1897) as 

 a subgenus of Lepus for Lepus cinerascens Allen, on characters defined by 

 Mearns (Proc. U. S. Nat. Mus, xviii, pp. 552, 553, June 24, 1896). Cineras- 

 cens Allen, the only species named by Trouessart, is the type. 



It is used by Miller and Rehn (Proc. Bost. Soc. Nat. Hist., xxx, pp. 188, 

 189) as a subgenus of Lepus for the following species: bachniani Water- 



