NECTOMYS— —NEMOTRAGUS. 451 
Nectomys PrrEns, 1861. Glires, Muridz, Cricetinee. 
Abhandl. K. Akad. Wiss., Berlin, for 1860, 151—156, Taf. 1, 11 figs. 3-4, 1861. 
Neotomys W auuace, Geog. Dist. Animals, II, 230, 1876 (misprint). 
Species: Mus squamipes Lichtenstein, from Brazil; and Nectomys apicalis Peters, 
from Guayaquil, Ecuador. 
Nectomys: v1rós, swimming; 4/065, mouse—in allusion to the short webs between 
the toes of the hind feet, indicative of the animal’s aquatic habits. 

Nelomys JourDAN, 1837. Glires, Octodontide. 
Comptes Rendus, Paris, V, 522, 1837; Ann. Sci. Nat., Paris, 2° sér., VIII, Zool., 
370-371, Dec. 1837; ALLEN, Bull. Am. Mus. Nat. Hist., XII, 259, 263, 1899. 
Type: Nelomys blainvillii Jourdan, from an island near Bahia, Brazil. 
Nelomys: v1À15s, pitiless, ruthless; “0s, mouse. 
Nelomys Lunn, 1841. Glires, Octodontidee. 
K. Danske Vidensk. Selsk. Nat. & Math. Afhandl., Kjóbenhavn, VIII, 241, 243, 
266, 294, tab. xxi figs. 10, 11, xxi1-xxm1, xxv figs. 7, 11, 12, 1841. 
Nelomys Lund (nec Jourdan, 1837) includes the ‘clumsier species, with shorter 
ears, shorter legs and a densely hairy tail' — Echimys antricola Lund, and E. 
sulcidens Lund, from the caves on the eastern slope of the Serra da Espinhaco, 
near the Rio das Velhas, Minas Geraes, Brazil. The earliest available name 
for the genus is Thrichomys Trouessart, 1881. (See THomas, Proc. Zool. Soc. 
London, 1896, 1025. ) 

Nelsonia Merriam, 1897. Glires, Muridze, Neotominz. 
Proc. Biol. Soc. Wash., XI, 277-279, figs. 14-15, Dec. 17, 1897. 
Type: Nelsonia neotomodon Merriam, from Pl:teado, Zacatecas, Mexico (alt. 
8,200 ft. ). 
Nelsonia: In honor of Edward William Nelson, 1855—, field naturalist of the U.S. 
Department of Agriculture, who has collected extensively in Alaska and Mexico, 
and has published several papers on mammals. 
Nematherium AmEGHINO, 1887. Edentata, Megatheriide. 
Enum. Sist. Especies Mamif. Fós. Patagonia Austral, pp. 22-23, Dec., 1887. 
Species: Nematherium angulatum Ameghino, and N. sinuatum Ameghino, from 
the lower Tertiary of southern Patagonia. 
Extinet. 
Nematherium: vyuwa, thread; 07ptov, wild beast. 
Nemestrinus (subg. of Macacus) REicHENBACH, 1862. Primates, Cercopithecide. 
Vollstiind. Naturgesch. Affen, 139-140, pl. xxrv, figs. 549-353, 359-363, 1862. 
Type: Macacus nemestrinus (= Simia nemestrina Linnzeus) , from Sumatra or Borneo, 
Name preoccupied by Nemestrinus Latreille, 1802, a genus of Diptera. 
Nemestrinus: Lat., god of groves. 
Nemodermus Rarinesque, 1815. Sirenia, Trichechid:e. 
Analyse de la Nature, 60, 1815. 
Nomen nudum. 
Nemolestes AmMEGHINO, 1902. Marsupialia, Triconodontide. 
Bol. Acad. Nac. Cien. Córdoba, XVII, 48-49, May, 1902 (sep. pp. 46-47). 
Type: Nemolestes spalacotherimus Ameghino, fromthe Notostylops beds of Patagonia. 
Extinct. 
Jemolestes: v£uos, glade, wood; Ag6r»c, robber—i. e., a predatory beast of the 
forest. 
Nemorhedus, Nemorhedus, Nemorrhedus (see Neemorhedus). 
Nemotragus Heupr, 1898. Ungulata, Artiodactyla, Bovide. 
Mém. Hist. Nat. Empire Chinois, IV, pt. 1, p. 13, 1898, 
