GEOGRAPHIC DISTRIBUTION BY GENERA 



(Counties and states only) 



Bathygenys — Montana 

 B. alpha — Jefferson, Mont. 



Cyclopidius — California, Montana, Nebraska, 

 South Dakota, Wyoming 

 C. call) 'amicus — Ventura, Calif. 

 C. densus — Morrill, Neb.; Goshen, Niobrara, 



Wyo. 

 C. lullianus — Goshen, Niobrara, Wyo. 

 C. schucherti — Custer, So. Dak. 

 C. simus — Meagher, Mont.; Cheyenne, Neb. 

 C. sp. — Lewis & Clark, Mont. 



Eporeodon — California, Colorado, Montana, 



Nebraska, North Dakota, Oregon, South 



Dakota, Wyoming 

 E.bullatus — Sioux, Neb.; Grant, Wheeler, 



Ore. ; Washington, So. Dak. 

 E. condoni — Grant, Wheeler, Ore. 

 E. dickinsonensis — Stark, No. Dak. 

 E. helence — Broadwater, Lewis & Clark, 



Mont.; Shannon, So. Dak. 

 E. leptacanthus — Grant, Wheeler, Ore. 

 E. longijrons — Crook, Grant, Ore. 

 E. I. perbullatus — Wheeler, Ore. 

 E. major — Sioux, Neb.; Stark, No. Dak.; 



Grant, Ore.; Washington, 



Goshen, Wyo. 

 E. m. cedrensis — Logan, Colo. 

 E. m. cheeki — Goshen, Wyo. 

 E. in. hybridus — Northeast Colo. 



Neb.; Washington, So. Dak. 

 E. m. relictus — Shannon, So. Dak. 

 E.montanus — Lewis & Clark, Mont.; Scotts 



Bluff, Neb. 

 E. occidentalis — Grant, Wheeler, Ore. 

 E.pacificus — ? Sioux, Neb.; Crook, Grant, 



Wheeler, Ore.; Jones, So. Dak. 

 E. parvus — Grant, Ore. 

 E. socialis — Scotts Bluff, Neb. 

 E. thurstoni — Ventura, Calif. 

 E. trigonocephaly — Grant, Wheeler, Ore. 

 E. sp. — Northeast Colo.; Washington, So. 



Dak. 



Eucrotaphus — Wyoming 

 E. jacksoni — Goshen, Wyo. 



So. Dak.; 



i Sioux, 



Hyomeryx — Utah 



H. breviceps — Uinta, Utah 



Leptauchenia — Colorado, Montana, Ne- 

 braska, South Dakota, Wyoming 



L. decora — Northeast Colo. ; Meagher, 

 Mont.; Banner, Cherry, Cheyenne, 

 Dawes, Morrill, Scotts Bluff, Sioux, 

 Neb.; Pennington, Washabaugh, So. 

 Dak. 



L. major — Sioux, Neb.; Washington, So. 

 Dak. 



L. minora — Goshen, Wyo. 



L. nitida — Banner, Dawes, Scotts Bluff, 

 Sioux, Neb.; Shannon, So. Dak. 



L. sp. — Sioux, Neb. ; Pennington, So. Dak. 



Limnenetes — Montana 



L. platyceps — Gallatin, Mont. 



Merychyus — California, Colorado, Montana, 



Nebraska, Nevada, Oregon, South Dakota, 



Wyoming 

 M. arenarum — -Albany, Wyo. 

 M. a. leptorhynchus — Albany, Wyo. 

 M. a. minimus — Sioux, Neb. 

 M. curtus — Washington, So. Dak. 

 M. delicatus — Shannon, So. Dak. 

 M. elegans — Northeast Colo.; Sioux, Neb. 

 M. e. paniensis- — Logan, Weld, Colo. 

 M. harrisonensis — Sioux, Neb.; Niobrara, 



Wyo. 

 M. pariogonus — Meagher, Mont. 

 M. siouxensis- — -Sioux, Neb. 

 M. sp. — Los Angeles, Calif.; Weld, Colo.; 



Sioux, Neb.; Humboldt, Nev. ; Malheur, 



Ore.; Washington, So. Dak. 



Merycochcerus — California, Colorado, Ne- 

 braska, ? Oregon, South Dakota, Wyoming 



M. buwaldi — San Bernardino, ? Ventura, 

 Calif. 



M. ccenopus — Cherry, Neb. 



M. magnus — Sioux, Neb. 



M. matthewi — Shannon, So. Dak. 



M.proprius — Weld, Colo.; Sioux, Neb.; 

 Fremont, Goshen, Wyo. 



M. sp. — Sioux, Neb. ; Grant, Ore. ; Wash- 

 ington, So. Dak.; Goshen, Wyo. 



