. Monographs of North American rodentia [microform]. Rodentia; Paleontology; Rongeurs; Paléontologie. Ml.! â f n'l :LH. 742 MONOGRAPHS OF NORTH AMERICAN RODENTIA. Maerozim hoolhlo' Gray, Ann. and Mng. Nnt. Iliot. 3i1 Her. xx, 1R67, 424. JUacroxi'H niuii/ana Uiiay, Auu. nud Mag. Nut. Hist. 3d ser. xx, 1HC7, 423 (Costa Rica). Macrorns colliai Giiay, Ann. and Mni;. N»t. Hint. 3<1 aer. xx, 18G7, 421 (vara, t and 2 only). " iS'ciui'iK intermediuH Vki<urai?x " (MS. nntuof; see Gray, 1. c. 421). Sciurut rigidua IVi'Eiis, Muuatsb. Kiiuigl. I'rouiM. Akod. WiDseniich. zu Berlin, 1863 (
. Monographs of North American rodentia [microform]. Rodentia; Paleontology; Rongeurs; Paléontologie. Ml.! â f n'l :LH. 742 MONOGRAPHS OF NORTH AMERICAN RODENTIA. Maerozim hoolhlo' Gray, Ann. and Mng. Nnt. Iliot. 3i1 Her. xx, 1R67, 424. JUacroxi'H niuii/ana Uiiay, Auu. nud Mag. Nut. Hist. 3d ser. xx, 1HC7, 423 (Costa Rica). Macrorns colliai Giiay, Ann. and Mni;. N»t. Hint. 3<1 aer. xx, 18G7, 421 (vara, t and 2 only). " iS'ciui'iK intermediuH Vki<urai?x " (MS. nntuof; see Gray, 1. c. 421). Sciurut rigidua IVi'Eiis, Muuatsb. Kiiuigl. I'rouiM. Akod. WiDseniich. zu Berlin, 1863 (1664), Go2. Specific chars.âForm rather stout; muzzle short and broad; ears rather small; tail narrow, rather longer than head and body ; pelage full, coarse, an«l long. Length of head and body ; of tail-vertebroe ; of tail to end of hairs Above, dark brown, mixed with yellowish-gray or black, varied with fulvous; often paler on the sides, where there is a tendency, in many specimens, to a broad, grayish, sub-lateral band; beneath, deep brownish-rrd, frequently with unsymmctrical patches of pure white. Tail below tricolored, centrally rufous, then black, with a border of white; the rufous in the nii<Idle variable in amount and in tint, sometimes obsolete, sometimes forming a broad central l)and of bright rufous, at other times pale rufous. This species is so variable in coloration as to be hard to characterize. The above diagnosis indicates a condition intermediate between the extremes, as well as apparently the most common phase. Of eighteen Costa Rican specimens, about half present a quite uniform style of coloration, while of the remainder, no two are very nearly alike. Eleven agree quite nearly in having the general color above black, varied more or less with reddish-brown, the proportion of the two colors varying with each specimen. The ventral sur- face in all, including the inner side of limbs, is dark reddish-orange. The pelage above is black
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Keywords: ., bookcentury1800, bookdecade1870, bookpub, booksubjectpaleontology
