* 
NANNODUS—NANOMYOPS. 447 
Nannodus Amecurno, 1891. Ungulata, Litopterna, Notohippid:e. 
Revista Argentina Hist. Nat., I, entr. 4a, 241, Aug. 1, 1891. 
Type: Nannodus eocaenus Ameghino, from the Eocene of southern Patagonia. 
Extinct. 
Nannodus: vavvos, dwarf; 660s, tooth—probably in allusion to the diminutive 
lower premolar. 
Nannomys (subgenus of Mus) PETERS, 1876. Glires, Muridee, Murine. 
Monatsber. K. Preuss. Akad. Wiss., Berlin, Aug., 1876, 480-481, Taf. 2, fig. 4. 
Type: Mus ( Nannomys) setulosus Peters, from Victoria, Cameroons, West Africa. 
Nannomys: vavvos, dwart; 40s, mouse. 
Nannosciurus (subgenus of Sciurus) TRovEssanT, 1880. Glires, Sciuride. 
Le Naturaliste, II, No. 37, p. 292, Oct. 1, 1880; Cat. Mamm. Viv. et Foss., 
Rodentia, in Bull. Soc. d" Études Sci. d'Angers, X, 1* fasc., 73, 1880; Covzs, 
Bull. U. S. Geol. & Geog. Surv. Terr., VI, No. 2, p. 304, Sept. 19, 1881; 
LypEKKER, Royal Nat. Hist., III, 93-94, 1895 (raised to generic rank); Erkna, 
Cat. Sist. Fauna Filipinas, I, 20, 1895. 
Species: Sciurus melanotis Miller & Schlegel (type), and S. exilis Müller & 
Schlegel, both from Malaysia. 
Nannosciurus: vavvos, dwart; + Sciurus—‘ pygmy squirrel.’ 
Nannospalax (subgenus of Spalax) Patmer, 1908. Glires, Spalacidee. 
Science, new ser., X VII, 873, May 29, 1903. 
New name for Microspalax Nehring, 1898, which is preoccupied by Microspalax 
Trouessart, 1885, a genus of Arachnida. 
Nannospalax: vavvos, dwarf; + Spalax. 
Nannugo (subgenus of Vesperugo) Kotenati, 1856. Chiroptera, Vespertilionidee. 
Allgem. Deutsch. Naturhist. Zeitg., Dresden, neue Folge, II, 151, 169-172, 1856; 
** Mon. Europ. Fledermiiuse, 64, 1859’’; Kocu, Jahrb. Ver. Naturkunde Nassau, 
XVII-X VIII, 395-399, 481—500, 1863. 
Species, 3: Vesperugo nathusii Keyserling & Blasius, Vespertilio pipistrellus Dau- 
benton, and V. kuAlii Natterer, from Europe. 
Nannugo: v&rvos, dwart; + ending -ugo—(tormed in analogy with Hypsugo and 
Vesperugo). 
Nanohyus Leipy, 1869. Ungulata, Artiodactyla, Suidze. 
Proc. Acad. Nat. Sci. Phila., 1869, 65. 
Type: Nanohyus porcinus Leidy, from the Oligocene of the Bad Lands of White 
River, South Dakota. 
Extinct. Based on ‘a fragment of the left ramus of the lower jaw.’ 
Nanohyus: v&vosc, dwarf; Us, 60s, hog. 
Nanomeryx Marsn, 1894. Ungulata, Artiodactyla, Homacodontide. 
Am. Journ. Sci., 3d ser., XLVIII, No. 285, pp. 263-264, figs. 9, 10 Sept., 1894. 
Type: Nanomeryx caudatus Marsh, from the Dinoceras beds of the Middle Eocene 
near Fort Bridger, Wyoming. 
Extinct. 
Nanomeryx: v&vos, dwart; onpvé, 
of the type species, which is ‘‘only about half as large as Homacodon vagans, 
and is thus one of the smallest Eocene artiodactyles known." (Marsn.) 
ruminant—in allusion to the diminutive size 
Nanomyops Marsn, 1892. Allotheria, Plagiaulacid:e. 
Am. Journ. Sci. & Arts, 3d ser., XLIII, p. 261, expl. to pl. vr, fig. 2, Mar., 1892. 
New name for Nanomys Marsh, 1889, which is preoccupied by Nannomys Peters, 
1876, a subgenus of Muridee. 
Extinct. 
Nanomyops: v&vos, dwarf; 4ÜCs, mouse; dw, aspect, 
