TYPE-SPECIMENS OF FOSSIL VERTEBRATES. 35 



2727. Dryolestes vorax Marsh. Type. 



Nearly complete lower jaw wdth teeth. Morrison (Juras- 

 sic). Como, Wyoming. 



Marsh, Amer. Journ. Sci. (3), XVIII, 1879, p. 215; XXXIII, 1887, 

 pi. 9, figs. 3, 4. 



1 137. Ectagonus gliriformis Cope. Type. 



Portions of teeth associated with other fragments. Eocene. 

 New Mexico. 



Cope, App. FF3, Ann. Rept. Chief Engineers, in Rept. Sect'y. 

 War, II, Pt. II, 1874, p 592; Rept. U. S. Geogr. Surv. W. looth 

 Merid., IV, Pt. II, 1877, p. 160, pi. 41, figs. 1-7. 



1 102. Ectagonus novomehicanus (Cope). Type. 



Cope, Rept. U. S. Geogr. Surv. W. looth Merid., IV, Pt. II, 1877, 

 p. 159, pi. 40, figs. 34-39- 



See Calamodon novomehicanus. 



189. Elephas columbi Falconer. Plesiotype. 



Left ramus. Pliocene. Peace Creek, Florida. 



Leidy, Trans. Wagner F'ree Inst. Sci. Phila., II, 1889, pi. 8, fig. 2. 



185. Elephas imperator Leidy. Type. 



Fifth upper molar. Pliocene. Nebraska River, Nebraska. 



Leidy, Proc. Acad. Nat. Sci. Phila., 1858, p. 10; Journ. Acad. Nat. 

 Sci. Phila. (2), VII, 1869, p. 255, pi. 25, fig. 3. 



146. Elotherium mortoni (LeidjO- vSee Archaeotherium mortoni. 



524. Elotherium mortoni (lycidy) ? _ Plesiotype. 



Incisor tooth. White River (Oligoceue). Twenty miles 

 southeast of Cheyenne, Wyoming. 

 Leidy, Rept. U. S. Geol. Surv. Terr., I, 1873, pl- 7. ^gs. 28, 29. 



783. Elotherium mortoni. See Arctodon .sp. undet. and Archaeo- 

 therium robustum. 



2129. Ennacodon affinis (Marsh). See Enneodon afhnis. 



2130. Ennacodon crassus (Marsh). See Enneodon crassus. 



2129. Enneodon afiPinis Mavsh. Tj-pe. 



Left ramus of jaw. Morrison (Jurassic. ) Wj^oming. 

 Marsh, Amer. Journ. Sci. (3), XXXIII, 1887, p. 339. 

 = Ennacodon affinis. 



2130. Enneodon crassus Marsh. T5^pe. 



Right ramus of jaw containing seven teeth. Morrison. 

 (Jurassic.) Wyoming. 

 Marsh, Amer. Journ. Sci. (3), XXXIII, 1887, p. 339, pi. 10, fig. 4. 

 = Ennacodon crassus. 



1079. Eohippus angustidens (Cope). See Orohippus angustidens 

 and Hyracotherium angustidens. 



