NATURAL AREAS AND REGIONS 



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Arremonops verticalis. Schott's sparrow. 

 Richmondena cardinalis yucatanica, Yu- 

 catan cardinal. 



h. Guerrero-Colima District (Arid 

 Tropical Zone, Arid Tropical Deciduous 

 Forest, and Savanna}. Coastal plains, 

 and slopes of mountains to about 3000 

 ft. altitude. A region of moderate 

 rainfall, but long dry season. Trees 

 largely deciduous, except along streams. 

 Forest irregularly interrupted by sa- 

 vanna areas. 



Plants 



Coccoloba schiedeana, tamulero. 

 Licania arborea, cacahuananche. 

 Hirtella americana, cajetillo. 

 Lysiloma acapulcensis, tepehuaje. 

 Cassia occidentalis, habilla. 

 Bauhinia latifolia, pata de venado. 

 Bauhinia glabra. 

 Sweetia panamensis, huesillo. 

 Swietenia humilis, mahogany, caoba. 

 Byrsonima crassifolia, nanche. 

 Bombax ellipticum, ceiba. 

 Guazuma ulmifolia, cuaulote. 

 Curatella americana, raspa-viejo. 



Mammals 



Cam's vigilis, Colima coyote. 



Nasua narica molaris, Colima coati, 

 tejon. 



Felix onca hernandezii, Hernandez' tiger, 

 tigre. 



Felix pardalis nelsoni, ocelot, tigrillo. 



Platygeomys fumosus, Colima pocket 

 gopher. 



Xenomys nelsoni, Nelson's wood rat. 



Hodomys alleni, Allen's wood rat. 



Sciurus socialis cocos, Acapulco squirrel. 



Citellus annulatus annulatus, band- 

 tailed ground squirrel. 



Pecari angulatus humeralis, Colima 

 peccary. 



Odocoileus acapulcensis, Acapulco deer. 



Birds 



Momotus mexicanus saturatus, Coast 

 motmot. 



Centurus chrysogenys ftavinuchus, Aca- 

 pulco woodpecker. 



Trogon citreolus, Citreoline humming- 

 bird. 



Phaethornis longirostris mexicanus, 

 Guerrero hermit. 



Anthoscenus constantii leocadiae, pine 

 star-throat. 



Cynanthus doubledayi, Doubleday's 

 hummingbird. 



Xiphorhynchus fiavigaster mentalis, 

 Grayson's woodhewer. 



Attila citreopygus cinnamomeus, Law- 

 rence's attila. 



Myiarchus nuttingi inquietus, Guerrero 

 flycatcher. 



Heleodytes humilis, Sclater's cactus 

 wren. 



Pheugopedius felix felix, happy wren. 



Nannorchilus leucogaster pacificus, Co- 

 lima wren. 



T urdus flavirostris, Mazatlan robin. 



Cissolopha san-blasiana pulchra, Aca- 

 pulco jay. 



Granatellus venustus, Du Bus' red- 

 breasted chat. 



Megaquiscalus major obscurus, Colima 

 boat-tail. 



Phoenicothraupis rubica affinis, Oaxaca 

 ant tanager. 



Arremonops superciliosus sumichrasti, 

 Acapulco sparrow. 



i. Sierra Madre District (Transition 

 Zone). Sierra Madre Occidental of 

 northern part of Republic (Chihuahua, 

 Sonora, Durango ) . An elevated plateau 

 region (6000 to 8000 ft.) with irregular 

 surface, but few high peaks. An ex- 

 tension of the Rocky Mountain region 

 of the United States; deeply cut on the 

 western flank by canyons mainly assign- 

 able to lower zones. 



Plants 



Pinus ponder osa, western yellow pine. 

 Pinus chihuahuana, Chihuahua pine. 

 Pinus lumholtzii, Lumholtz' pine. 

 Pinus arizonica, Arizona pine. 

 Rhamnus betulaefolia. 



Mammals 



Ursus nelsoni, Nelson's grizzly bear. 

 Ursus machetes, Chihuahua black bear. 

 Canis mexicanus, Mexican wolf. 

 Neotoma mexicana madrensis, Sierra 



Madre wood rat. 

 Callospermophilus madrensis, Mexican 



golden-mantled chipmunk. 

 Sciurus aberti barberi, Barber's squirrel. 

 Odocoileus cousei, Coues' deer. 



Birds 



Chloroenas fasciata fasciata, band-tailed 

 pigeon. 



Rhynchopsitta pachyrhyncha, thick- 

 billed parrot. 



Campephilus imperialis, Imperial ivory- 

 bill. 



Dryobates villosus icastus, Chihuahua 

 woodpecker. 



Leptuas neoxenus, eared trogon. 



Empidonax pulverius, Sierra Madre 

 flycatcher. 



