PROTOHIPPUS—PROTOPALSIS. 583 
Protohippus—Continued. 
Antedated by Merychippus Leidy, 1857. 
Extinct. Based on ‘a fragment of an upper jaw containing the posterior four 
molars.’ 
Protohippus: zp&ros, first; ios, horse. 
Protoindris Lorenz-Lisurnavu, 1900. Primates, Lemuridee. 
Denkschriften K. Akad. Wiss., Wien, Math.-Nat. Cl., LX X, p. 11, Taf. m1, fig. 2 
1900. 
Type: Protoindris globiceps Lorenz-Liburnau, from the Pleistocene of Madagascar. 
Extinct. Based on a skull. 
Protoindris: zp&ros, first; +Indris. 
Protolabis Corr, 1876. Ungulata, Artiodactyla, Camelide. 
Proc. Acad. Nat. Sci. Phila., Sept. 5, 1876, 144-145. 
Type: Protolabis heterodontus Cope, from the Miocene (Loup Fork) of north- 
eastern Colorado. 
Extinct. Based on ‘the superior dentition of an adult.’ 
Protolabis: 1p@ros, first; Aa@fis, handle, forceps. 
Protolabis Worrman, 1898. Ungulata, Artiodactyla, Camelidee. 
Bull. Am. Mus. Nat. Hist., N. Y., X, 120-122, Apr. 9, 1898. 
Type: Protolabistransmontanus Cope, from Cottonwood, John Day Valley, Oregon. 
Not Protolabis Cope, 1876, which was based on P. heterodontus from northeastern 
Colorado. Replaced by Miolabis Hay, 1899. 
Extinct. 
Protolabis: z&rosc, first; Aafis, handle, forceps. 
Protolagos Hrupr, 1898. Glires, Leporid:e. 
Mém. Hist. Nat. Empire Chinois, IV, pt. 2, p. 65, 1898. 
Name suggested but not used for a hypothetical ancestral form of Leporid:. 
** Tes dents caduques des Léporidés sont les dents ancestrales du Protolagos ou 
du Prolepus, et si cette béte ancestrale n'est pas une pure abstraction générique, 
cette forme léporide est concréte et doit se retrouver dans les couches géologiques 
anciennes, décomposées en bas, réunies en haut." (HEUDE. ) 
Protolagos: mp@cros, first; A«y zc, hare. 
Protolambda Osporn, 1898. Ungulata, Amblypoda? ? 
Bull. Am. Mus. Nat. Hist., N. Y., X, 172, fig. la, June 3, 1898. 
Type: Protolambda hatcheri Osborn, from the Cretaceous (Laramie) of Wyoming. 
Extinct. Based on ‘four isolated upper molars.’ 
Protolambda: mp@ros, first; +-(Panto-)lambda—in-allusion to the ‘‘type of tooth 
antecedent to that of Pantolambda." 
Protomeryx Leripy, 1856. Ungulata, Artiodactyla, Camelidee. 
Proc. Acad. Nat. Sci. Phila., 1856, 164; Journ. Acad. Nat. Sci. Phila., 2d ser., 
VII, 160-161, 382, pl. xv figs. 8,9, 1869. 
Type: Protomeryx halli Leidy from the Oligocene of Bear Creek, South Dakota. 
Extinct. ‘‘ Founded upon a fragment of the lower jaw." 
Protomeryx: mp@vos, first; seve, ruminant. 
Protomeryx ScurossEsn, 1886. Ungulata, Artiodactyla, Tragulid:e. 
Morphol. Jahrb., Leipzig, XII, 1tes Heft, 95-96, Taf. v, figs. 20, 25, 1886. 
Type: Protomeryx suevicus Schlosser, from the Oligocene of Orlingerthal, near Ulm, 
Württemberg, Germany. 
Name preoccupied by Protomeryx Leidy, 1856, a genus of Camelide. Replaced 
by Pseudogelocus Schlosser, 1895. 
Extinct. Based on a fragment of the lower jaw. 
Protopalsis (see Protopsalis) . Creodonta, Oxyzenide. 
