ARTIBEUS—ASCHIZOMYS. TOS 
Artibeus Lracu, 1821. Chiroptera, Phyllostomatid:e. 
Trans. Linn. Soc. London, XIII, pt. r, 75, 1821. 
Arctibeus Gray, Mag. Zool. & Bot., II, 487, 1838; List Osteol. Spec. Brit. Mus., 
pp. ix, 7, 1847. 
Arctibius BoNAPARTE, Proc. Zool. Soc. London, 1847, 115. 
Artibeus Gervais, Expéd. du Comte de Castelnau dans I’ Amér. du Sud, Mamm., 
34, 1855. 
Artobius Winer, E Museo Lundii, II, 38, 1892. 
Type: Artibeus jamaicensis Leach, from Jamaica. 
Artibeus: &pri, straight, exactly fitted; Gad@ = fave, to walk. (AGassrz.) 
Artionyx Osporn & Worrman, 1893. Ungulata, Artiodactyla, Agriochceride. 
Bull. Am. Mus. Nat. Hist., V, 1-16, figs. 1-5, Mar. 1, 1893. 
Type: Artionyx gaudryi Osborn & Wortman, from the Oligocene (Protoceras 
beds) of White River, South Dakota. 
Extinct. Based on portions of the femora, tibia, fibula, and pes, and the left 
patella complete. Afterwards shown to belong to 4griocherus. | (WORTMAN, 
Bull. Am. Mus. Nat. Hist, VII, 145-146, June 14, 1895.) 
Artionyx: prios, even; 6vvé, claw—in allusion to the possession of toes in pairs 
on the hind feet; i. e., a clawed Artiodactyl, in contrast with Chalicotherium, 
which ‘‘may be described as a clawed Perissodactyl." 
Artobius (‘Lracu’) WiNnGrE, 1892. Chiroptera, Phyllostomatid:e. 
Wince, E. Museo Lundi, III, 3, 10, 38, pl. 1, fig. 13, 1892. 
Emendation of Artibeus Leach, 1821. Artobius is preoccupied by Artobium Mul- 
sant & Rey, 1864, a genus of Coleoptera. 
Artophoca (see Arctophoca). Fer», Pinnipedia, Otariide. 
Arvicanthis Lesson, 1842. Glires, Murid:e, Murine. 
Nouv. Tableau Régne Animal, Mamm., 147, 1842; THomas, Proc. Zool. Soc. 
London, 1895, pt. 111, 553. 
Arviacanthis Bepparp, Cambridge Nat. Hist., X, Mamm., 473, 1902. 
Type: Lemmus niloticus E. Geoffroy, from Africa. 
Arvicanthis: Apparently a contraction of Arvicola-+- acanthis, spine—from the long, 
coarse hairs which project through the woolly under fur. 
Arvicola La4cÉPEDpE, 1799. Glires, Murid:e, Microtin:ze. 
Tableau Divisions, Sous-divisions, Ordres et Genres Mamm., 10, 1799; Nouv. 
Tableau Méthod. Mamm., in Mém. l'Institut, Paris, III, 495, 1801; Omp, 
Journ. Acad. Nat. Sci. Phila., IV, pt. 2, 305-306, 1825. 
Type: Mus amphibius Lacépéde ( — Mus terrestris Linnzeus), from Europe. 
Name antedated by Microtus Schrank, 1798. 
Arvicola: Lat. arvum, field; colo, to inhabit. 
Asagis Grocrn, 1841. Marsupialia, Didelphyid:e. 
Hand- u. Hilfsbuch Naturgesch., I, pp. xxx, 82, 1841; THomas, Cat. Marsup. & 
Monotrem. Brit. Mus., 340, 1888 (type fixed); Ann. & Mag. Nat. Hist., 6th 
ser., XV, 190, Feb. 1, 1895. 
Type species not mentioned by Gloger; according to Thomas it is Didelphis 
murina Linn:us, from tropical America. (See Marmosa Gray, 1821.) 
Asagis: &-, without; Gays, pouch—in allusion to the absence of a true pouch. 
Aschizomys MirLER, 1898. Glires, Murid:e, Microtine. 
Proc. Acad. Nat.-Sci. Phila., Oct. 11, 1898, 368-371, figs. 1-4. 
Type: Aschizomys lemmimus Miller, from Kelsey Station, Plover Bay, northeastern 
Siberia. 
Aschizomys: &-, without; Gyitc, to split; “0s, mouse—not splitting, i. e., con- 
necting—in allusion to the combination of characters of Microtus and Evotomys. 
