SCIURAVUS——SCIURUS. 625 
Sciuravus Mansu, 1871. Glires, Ischyromyid:e. 
Am. Journ. Sci. & Arts, 3d ser., II, 122, Aug., 1871 (sep. issued June 21); Hav, 
Cat. Foss. Vert. N. Am., Bull. 179, U.S. Geol. Surv., 723, 1902 (type fixed). 
Species: Sciuvravus nitidus Marsh (type), and S. wndans Marsh, from the Eocene 
of Grizzly Buttes, near Fort Bridger, Wyoming. 
Extinct. 
Sciuravus: Sciurus; Lat. avus, grandfather—i. e., an ancestral squirrel. 
Sciurocheirus Gray, 1872. Primates, Lemuride. 
Proc. Zool. Soc. London, 1872, 857-858, fig. 5. 
Type: Galago allenii Waterhouse, from Fernando Po, West Africa. 
Sciurocheirus: Sciurus; xetp, hand—trom the squirrel-like form of the anterior 
limbs. 
Sciurodon ScurossER, 1884. Glires, Pseudosciuridee. 
Die Nager Europ. Tertiirs, in Paleeontographica, X XXI (sep. pp. 73-75), Taf. 
II figs. 3, 10,1884. 
Type: Sciurodon cadurcense Schlosser, from the upper Eocene Phosphorites of 
Mouillae, Dépt. Tarn-et-Garonne, France. 
Extinct. Based on a lower jaw. 
Seiurodon: Sciurus; 650v=66o0vs, tooth. 
Sciuroides Fonsvru MaJor, 1873. Glires, Pseudosciuridze. 
Paleeontographica, X XII, 2te Lief., 79-86, Taf. 1 figs. 4-12, Aug., 1873. 
Species, 4: Sciuroides rutimeyeri (— Sciurus rutimeyeri Pictet & Humbert in 
part), S. fraasi Major, S. siderolithicus (= Theridomys siderolithicus Pictet in 
part), and S. minimus Major, from the upper Eocene of southern Germany 
and Switzerland. 
Extinct. 
Sciuroides: Sciurus; &180c, form. 
Sciuromys ScurossEn, 1884. Glires, Ischyromyide. 
Die Nager Europ. Tertiirs, in Palzeontographica, XXXI (sep. pp. 81-83), Taf. 
vit figs. 2, 3, 7-9, 18, 1884. 
Type: Sciuromys cajyluxi Schlosser, from the upper Eocene Phosphorites of Mouil- 
lae, Dépt. Tarn-et-Garonne, France. 
Extinct. Based on lower jaws. 
Sciuromys: Sciurus; uÜOc, mouse. 
Sciuropterus F. Cuvier, 1825. Glires, Sciuridze. 
[‘Sciuroptére’ F. Cuvier, Mém. Mus. Hist. Nat., X, 126-128, pl. x fig. 5, 1823.] 
Dents Mammitéres, 161-162, pl. 56 (‘Sciuroptére’), 255 (Sciuropterus), 1825. 
Type: Sciurus volans Linnzus, from northern Europe. 
Sciuropterus: Sciurus; mtepov, wing—from the lateral membrane uniting the 
fore and hind limbs, thus forming a parachute. 
Sciurotamias MirrEn, 1901. Glires, Sciuridee. 
Proc. Biol. Soc. Wash., XIV, p. 23, Apr. 2, 1901. 
Type: Sciurus davidianus Milne-Ed wards, from the mountains near Pekin, China. 
Sciurotamias: Sciurus + Tamias—in allusion to its close relations to these genera. 
Sciurus Linnxus, 1758. Glires, Sciuridee. 
Systema Nature, 10th ed., I, 63-64, 1758; 12th ed., I, 86-88, 1766; Brisson, 
Regnum Animale in Classes IX distrib., 2d ed., 13, 104—113, 1762; Tuowas, 
Proc. Zool. Soc. London, 1897, 933 (type fixed). 
Species, 7: Sciurus vulgaris Linnzus (type), from Europe; 5. niger Linneeus, and 
S. cinereus Linnzeus, from North America; 5. flavus Linnzeus, from America; 
S. getulus Linneeus, from Africa; S. striatus Linnzeus, from eastern North Amer- 
ica; and S. volans Linnzeus, from northern Europe. 
Sciurus: Giclovpos, squirrel lit. ‘shade-tailed’ (from 6«zd, shade, shadow; ovpa, 
tail )—in allusion to the position of the tail when the animal is sitting upright. 
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