78 University of California Publications in Geology [Vou.7 
PartTIAL List OF MAMMALS FROM RANCHO La BREA. 
*Canis indianensis Leidy. Putorius, sp. 
*Canis orcutti Merriam, J. C. *Aretotherium californicum Mer- 
*Canis andersoni Merriam, J. C. riam, J.C. 
*Canis occidentalis furlongi Mer- *Elephas, sp. 
riam, J. C. *Mastodon, sp. 
*Lynx occidentalis fischeri Mer- *Equus, sp. 
riam, J. C. *Bison antiquus Leidy. 
*Felis atrox bebbi Merriam, J. C. *Capromeryx minor Taylor. 
*Smilodon californicus Bovard. *Camelops (?), sp. 
Mephitis, sp. *Paramylodon, sp. 
SPECIES OF BirpDS KNOWN FROM RANCHO LA BREA. 
Chaulelasmus streperus (Lin- Haliaétus leucocephalus (Lin- 
naeus). naeus). 
Anser albifrons (Seopoli) ? *Morphnus woodwardi Miller. 
Branta canadensis (Linnaeus). *Geranoaétus grinnelli Miller. 
*Ciconia maltha Miller. *Geranoaétus fragilis Miller. 
Jabiru mycteria (Lichtenstein). Faleo peregrinus Tunstall. 
Mycteria americana Linnaeus. Faleo, sp. 
Ardea herodias Linnaeus. Faleo sparverius Linnaeus. 
*Grus minor Miller. *Polyborus tharus Auct. 
Grus canadensis (Linnaeus). Aluco pratincola (Bonaparte). 
Lophortyx sp. Asio flammeus (Pontoppidan). 
*Meleagris ? Otus asio (Linnaeus). 
*Pavo californicus Miller. Bubo virginianus (Gmelin). 
Gymnogyps californianus (Shaw). Speotyto cunicularia hypogaea 
*Sarcorhamphus clarki Miller, (Bonaparte). 
*Pleistogyps rex Miller. *Neomorpha, ? sp. 
*Cathartornis gracilis Miller. Colaptes cafer (Gmelin). 
Cathartes aura (Linnaeus). Otocoris alpestris (Linnaeus). 
*Catharista occidentalis Miller. Corvus corax Linnaeus. 
*Teratornis merriami Miller. Corvus brachyrhynchos Brehm. 
Elanus leucurus ( Vieillot). *Corvus, sp. 
Cireus hudsonius (Linnaeus). Xanthocephalus xanthocephalus 
*Cireus, sp. (Bonaparte). 
Buteo, sp. Agelaius gubernator (Wagler). 
Buteo borealis (Gmelin). Sturnella neglecta Audubon. 
Aquila chrysaétos (Linnaeus). Pipilo, sp. 
Lanius ludovicianus Linnaeus. 
*Specics marked with an asterisk (*) are extinct or foreign to the 
locality. 
Fossil Lake.—The horizon designated by Cope as Silver Lake 
and classed collectively with several other horizons as the Equus 
Beds, was thought for many years to be of Pliocene age and 
as such was considered by Cope and by Shufeldt in their studies 

