612 INDEX GENERUM MAMMALIUM. 
Romcerolagus—Continued. 
Romerolagus: Romero; Aey@s, hare—in honor of Don Matias Romero, 1837-98, 
Mexican Minister to the United States 1863-68 and 1882-8, in recognition of 
his assistance to the Biological Survey in connection with its investigations in 
Mexico. 
Romicia Gray, 1838. Chiroptera, Vespertilionidee. 
Jardine’s Mag. Zool. & Bot., II, No. 12, p. 495, 1858. 
Romicius Buyra, Cuvier's Animal Kingdom, 1840, 75; new ed., 1849. 75; new 
ed., 1863, 63. 
Type: Romicia calcarata Gray, Eurasia, exact locality unknown. 
Romicia: Apparently a coined name. 
Ronzotherium Aymarp, 1856. Ungulata, Perissodactyla, Rhinocerotidee. 
[Comptes Rendus, XX XVIII, No. 14, pp. 675, 676, Jan.-June, 1854--nomen 
nudum |. 
999 
Congrés Sei. France, for 1855, I, 233, 264, 1856; RocEn, Bericht Naturwiss. Ver. 
Schwaben u. Neuburg (a. V.), in Augsburg, XXXIII, 26, 1898. 
Type not mentioned in 1854.  ** On y trouve [dans le bassin supérieur de la Loire] 
Rhinoceros à ineisives (Ronzotherium) . . . Cependant il est intéressant de 
remarquer . . . dans le curieux gisement de Ronzon (Miocéne inférieur) 
lapparition d'un véritable Rhinocére Ronzotherium), qui est signalé 
pour la premiere fois au-dessous des couches dans lesquelles on avait limité la 
^ (AYMARD.) 
In 1856 two species were mentioned: Ronzotherium velaunum Aymard, and 
R. cuvieri Aymard, from the lower Miocene in the vicinity of Puy, France. 
These species were briefly described, in 1853, as Acerotherium velaunum and A. 
(2) cuvieri in Pictet's Traité Paléont., 2d ed., I, 296. 
présence de ces sortes de Pachydermes.’ 
Extinct. 
Ronzotherium: Ronzon, France, the type locality; 07p£ov, wild beast. 
Rorqual G. Cuvirr, 1829. Cete, Baleenidee. 
Régne Animal, 2* éd., I, 298, 1829. 
Rorqualus F. Cuvier, Hist. Nat. Cétacées, 303-354, pl. 20, 1856; Jardine's Nat. 
Library, Mamm., VI, 125-153, pls. v-vrr, 1837; 2d ed., Mamm., I, 265, 1858; 
ibid., XII, 125-153, 1861. 
Species: Balena boops Linnzeus, and B. musculus Linn:zeus, from the European 
seas. 
Rorqual: French rorqual, probably from Swedish rórhval, the *round-headed 
cachalot,’ from rór, reed; Aval, whale. (Century Dict.) 
Rosmarus DnüNNiICH, 1772. Ferve, Pinnipedia, Odobenidee. 
Zoologivw Fundamenta, 34, 38-39, 1772 (no species given) ; Scoprortr, Introd. Hist. 
Nat., 490, 1777; Sronn, Prodromus Methodi Mamm., 41, Tab. c, 1780. 
Type: Trichechus rosmarus Linnieus, from the Arctic Ocean (Scopoli). 
Rosmarus: Danish rosmar, walrus. 
Rousettus Gray, 1821. Chiroptera, Pteropodid:e. 
London Med. Repos., XV, 299, Apr. 1, 1821. 
Type: P [teropus] xgyptiacus Geoffroy, from Egypt. 
Rousettus: French roussette (from rousset, reddish )J—in allusion to the character- 
istic color. 
Roussa (see Rusa). Ungulata, Artiodactyla, Cervidee. 
Rubienus (see Rabienus). Primates, Tarsiidee. 
Rucervus (subgenus of Cervus) Hopason, 1888. Ungulata, Artiodactyla, Cervide. 
Ann. Nat. Hist., I, 154, Apr., 1838; Journ. Asiatic Soc. Bengal, X, pt. 2, p. 914, 1841. 
Recervus Gray, Cat. Mamm. & Birds of Nepal & Thibet, Brit. Mus., 33, 1846. 
