1899-] Allen, Five New American Rodents. 13 



of coloration of the Texas Cotton-tail than by the characters 

 given, that it really better fits L. trowbridgei than the Texas 

 species, especially now that we can allow full weight to the small 

 size given by Waterhouse for L. bachmani. 



In renaming this strongly marked form it gives me pleasure to 

 connect with it the name of my valued colleague, Mr. Frank 

 M. Chapman, whose Corpus Christi collection, made in 1891, 

 contained the first specimens of this form received at this 

 Museum. I also take as the type of L. chapmani specimen No. 

 JlsL $ ad., taken by Mr. Chapman at Corpus Christi, Texas, 

 April 10, 1891. 



Mr. Thomas having also shown (/. c., p. 319) that the Lepus 

 sylvaticus Bachman, 1837, is preoccupied by a Lepus borealis sylva- 

 iictis Nilsson, 1832, a new name for the group becomes necessary, 

 and Mr. Thomas has suggested for it Lepus nuttalli Bachman, 

 1837, the type locality of which is " the Plains of the Columbia." 

 As it is evident that true nuttalli is not a member of the ''sylva- 

 ticus ' group, as now understood, I adopt for the group, in place 

 of sylvaticus, the name floridanus (Lepus sylvaticus floridanus 

 Allen), the next in date, given in 1890 to the form from Southern 

 Florida. The eastern Cotton-tails will therefore stand apparently 

 as below, with the type localities as there indicated. 



1. Lepus floridanus (Allen), 1890. Sebastian River, Brevard 

 Co., Florida. 



2. Lepus floridanus mearnsi (Allen), 1894. Fort Snelling, 

 Minnesota. 



3. Lepus floridanus transitionalis (Bangs), 1895. Liberty Hill, 

 Conn. 



4. Lepus floridanus alacer (Bangs), 1896. Stilwell, Indian 

 Territory. 



5. Lepus floridanus mallurus (Thomas), 1898. Raleigh, North 

 Carolina. (= Lepus sylvaticus Bachman, 1837, preoccupied by 

 Lepus borealis sylvaticus Nilsson, 1832. Cf. Ann. and Mag. Nat. 

 Hist. (7), X, Oct., 1898, p. 320.) 



Thomomys fulvus alticolus, subsp. nov. 



Similar in size and cranial characters to Thomomys fulvus anilce, but much 

 darker and less fulvous in coloration. Above yellowish brown much varied 

 with black, darkest along the median line. The usual dusky spot at posterior 



