178 BULLETIN OF THE 



24. Geomys pineti Rqfinesque. " Salamander." 

 Geomys pinelis Raf., Amer. Month. Mag., II, 45, 1817. 

 Pseudosloma Jloriduna Acd. & Bach., Quad. N. Am., Ill, 242, pi. cl, fig. 1, 1853. 



Common, but mainly confined to the drier portions of the pine woods. 

 The five specimens collected by me differ very much in size, and 

 considerably in color, some of them being plumbeous and others brown- 

 ish-plumbeous ; in other words, some are much darker than others. 

 The difference in size appears to be mainly due to age. This species 

 extends southwards at least as far as Lake Harney, and at some locali- 

 ties is particularly numerous, the little hillocks of earth it throws 

 up sometimes nearly covering the ground. 



MURIDiE. 

 25. Mus decumanus Pallas. Brown Rat. 

 Abundant at Jacksonville, but not observed by any of my party on 

 the Upper St. John's, nor by Mr. Maynard on Indian River. 



Although no other species of Mus was observed, it is not improba- 

 ble that the common mou>e (M. musculus) occurs in the vicinity of the 

 towns. It was not found on the Upper St. John's (to which locality it 

 probably has not yet extended), where the common house mice are a 

 species of Hesperomys, as are also the house mice on Indian River, 

 according to Mr. Maynard. Neither was any species of Reithrodon 

 obtained. The R. humilis, which occurs in Georgia and South Caro- 

 lina, is certainly to be expected in Northern Horida; but it has not 

 yet to my knowledge been reported from there. 



26. Hesperomys leucopus Wagner. White-footed Mouse. 



Mus sylvaticus, var. Erxl., Syst. Re?. An., I, 300, 1775. 



Mus leucopus Desm., Mam., II, 307, 1822. — Aud. & Bach., Quad. N. Am., 



I, 300, pi. xlvi, 1849. 

 Mus agrarius Godman, Am. Nat. Hist., II, 18:20. 

 Mus noveboracensis Selys-Longcii., Etude Micromam., G7, 1839. 

 Mus Emmonsii Dekay, Emmon's Rep. Quad. Mass., 01, 1840. 

 Cricdus myoides Gapper, Zool. Journ., 1830, 204. 

 Hesperomys polionotus Wagner, Wicgm, Arch., 1843, ii, 52. 

 f Hesperomys cognatus I.i < 'onte, Proc. Phil. Acad. Nat. Sci., VI, 442, 1852. 

 Hesperomys leucopus LeConte, Ibid., 413. — Baird, .Mam. N.Am., 459, 1857. 



— Allen, Bull. Mus. Comp. Zool., 1, 227, October, 18G9. 

 Hesperomys myoides I5.vir.ii, Main. N. Am., 472. 

 Hesperomys indianus Max. zl Wild., Arch, fiir Naturg., XXVIII, i, 1 1 1, 1862. 



