938 INDEX GENERUM MAMMALIUM. 
Name, authority, and date. Tupe or included. species, and localities. 
Prohyracotherium AMEGHINO, 1902 .. Prohyracotherium patagonicum, P. matutinum, 
P. medialis, Patagonia. 
Propachynolophus LExorxE, 1891.... Propachynolophus gaudryi, Reims, France. 
Protohippus Lrrwy, 1858. ........... Equus perditus, Niobrara River, Nebraska. 
Protorohippus WonTMAN, 1896 ...... Hyracotherium venticolum, Wyoming. 
Rhinippus BuRMEISTER, 1875........ Equus neogeus, E. principalis, Brazil. (See 
Hippidion. ) 
Sivalhippus LyDEKKER, 1877 ........ Sivalhippus theobaldi, Siwalik Hills, India. 
Stylonus Cops, 18/8-----— 2c... Stylonus seversus, Cottonwood, Grant Co. , Oreg. 
Syotherium (* OWEN?) Meyer, 1848... ‘‘ Equals Hyracotherium Owen, 1840.” 
Tomotabis CopE Soares. sae ae Equus fraternus, Florida. 
HELALETIDZE. (See LOPHIODONTIDZ. ) 
HYRACODONTIDZE. 
FAMILIES AND SUBFAMILIES. 
Hyrachyine OsBorn, 1892. i Palaeotheriodontine BRANDT, 1878. 
Hyracodontide Corr, 1879. Triplopodidz Corr, 1881. 
GENERA AND SUBGENERA. ‘ 
Name, authority, and date. Type or included species, and localities. 
Anchisodon Corr, 18792. 22 5-22 == 2 == Hyracodon quadriplicatus, Colorado. 
Colonoceras Marsu, 1873........... Colonoceras agrestis, Wyoming. 
:Hyrachyus Lxrpy, 1971-----.-.-— Hyrachyus agrestis, H. agrarius (type), Green 
River, Wyoming. 
Hyracodon Lxrpy, 1856 -.----..--.- Rhinoceros nebrascensis, South Dakota? 
Prohyracodon Kocg, 1897 .......... Prohyracodon orientalis, Andrásháza, Hungary. 
Prothyracodon Scorr & OsBorn, 1887. Prothyracodon intermedium, Uinta beds, Utah. 
Triplopus Cops, 1880..-:-.--.-.-... Triplopus cubitalis, Washakie Basin, Wyoming. 
LAMBDOTHERIIDZE. (See TITANOTHERIIDZE.) 
LOPHIODONTIDZE. 
(Including Helaletide. ) 
FAMILIES AND SUBFAMILIES. 
Colodontine WoRTMAN & EARLE, 1893. Lophiodontidae Giuu, 1872. 
FHelaletide OsBorn, 1892. 
GENERA AND SUBGENERA. 
Name, authority, and date. Type or included species, and localities. 
| Colodon Mars, 89022222 - rm Colodon luxatus, South Dakota. 
Desmatotherium Scott, 1883. ........ Desmatotherium guyotii, Wyoming. 
Dilophodon Scorr, 1883 ............ Dilophodon minusculus, Wyoming. 
iFelaletes s MUANHSHOMLG /2 2 eee Helaletes boops, Grizzly Buttes, Wyoming. 
Heptodon Corn, 1882. .............- Lophiodon ventorum, Wyoming. 
Lophiodon G. Cuvier, 1822. ........ Palaeotherium tapiroides (type), P. buxovillanum, 
Buschweiler, Germany; P. giganteum and P. 
aurelianense, Montabussard, near Orleans, 
France; and eight unnamed species, France. 
Lophiodonticulus AMEGHINO, 1902... Lophiodonticulus patagonicus, L. retroversus, Pata- 
gonia. 
