INTERODON—ISCHNOGLOSSA SOL 
Interodon AmEGHINO, 1885. Edentata, Megatheriide. 
Bol. Acad. Nac. Cien. Córdoba, VIII, entr. 1, pp. 117-120, 1885; Cont. Conocimi- 
ento Mamíf. Fósil. Repüb. Argentina, in Act. Acad. Nac. Cien., Córdoba, VI, 
680-681, pl. xxiv figs. 22-24, rxxiv figs. 8, 9, 1889. 
Type: Interodon crassidens Ameghino, from the barrancas del Paraná, Argentina. 
Extinct. Based on two isolated molars and a portion of a mandible. 
Interodon: Lat. inter, between; 66@v=6dédovs, tooth—in allusion to the inter- 
mediate character of the molars which are related to those of Megatherium, 
Promegatherium, Colodon, etc. 
Inuus GEorrRov, 1812. | Primates, Cercopithecide. 
Ann. Mus. Hist. Nat., Paris, XIX, 100, 1812; Cuvier, Régne Anim., 2* éd., 96, 1829. 
Innuus Encyclopzedia Brittanica, 8th ed., XIV, 141, 1857 (art. Mammalia). 
Species: Inwus ecaudatus Geoffroy (= Simia inuus Linnzus, type), from North 
Africa; I. rhesus (Geoffroy), from India; and I. nemestrinus ( —Simia nemestrina 
Linnzus), from Java and Sumatra. (See Macaca Lacépéde, 1799.) 
Tnuus: Lat. Inuus, a name of Pan, god of the woods—in allusion to the habit of 
some of the species of frequenting forests and thick jungles. 
Ipsotychus (see Isoptychus). Glires, Theridomyid:e. 
Iropocus GrocER 1841. Primates, Lemurid:e. 
Hand u. Hilfsbuch Naturgesch., I., pp. xxviii, 48-44, 1841; THomas, Ann. & 
Mag. Nat. Hist., 6th ser., XV, 190, Feb. 1, 1895. 
Type: Jropocus laniger (— Lemur laniger Gmelin), from Madagascar (see Avahi 
Jourdan, 1834). 
Tropocus: pis, rainbow; 7óxosc, wool—in allusion to the variation in color of the 
woolly fur at base, in the middle, and at the tips. 
Isacus Corr, 1878. Insectivora, Leptictidee. 
Palzont. Bull., No. 16, pp. 3-4, Aug. 20, 1873. 
Isacis Corr, Syn. New Vert., Colorado, 8, 1873; Bull. U. S. Geol. & Geog. Surv. 
Terr., No. 1, p.23, Jan. 21, 1874; Ann. Rept. U.S. Geol. & Geog. Surv. Terr., 
for 1873, 470, 1874. 
Type: Jsacus caniculus Cope, from the Oligocene of Colorado. 
Extinct. Based on ‘‘a mandibular ramus with two molars including the sec- 
torial." 
Name preoccupied Jsaca Walker, 1857, a genusof Hemiptera. Replaced by Meso- 
dectes Cope, 1875. 
Tsacus: 1606, equal; &«7), point. 
Isatis (subgenus of Vulpes) (‘Cuvier’) TRovzEssanT, 1885. Ferze, Canidee. 
TroveEssart, Cat. Mamm. Viv. et Foss., in Bull. Soc. d'Études Sci. d'Angers 
(suppl. 1884), 68, 1885; Cat. Mamm., new ed., fasc. 11, 308, 1897 (in synonymy). 
Trouessart refers Jsatis to Cuvier 1824, only giving it as a synonym of Leuco- 
cyon Gray, 1868. Cuvier, however, seems to have used it merely as a com- 
mon name in the form ‘ Isatis gris.’ 
Jsatis: From the specific name Canis isatis given by J. G. Gmelin in 1760, which 
is said to be from a vernacular name. (Century Dict.) 
Ischnoglossa Dr SavssunE, 1860. Chiroptera, Phyllostomatidze. 
Rev. et Mag. de Zool., 2* sér., XII, 491—493, pl. 20, a-d, Nov., 1860. 
Type: Ischnoglossa nivalis De Saussure, from timber line on Mount Orizaba, 
Mexico. 
Name preoccupied by Ischnoglossa Kraatz, 1856, a genus of Coleoptera. Replaced 
by Leptonycteris Lydekker, 1891. 
Ischnoglossa: Gxvós, thin; yA@ooa, tongue—in allusion to the remarkably long 
extensible tongue, which is much attenuated toward the tip. 
