Carriker : List of the Birds of Costa Rica. 325 



South Coastal Zone (Pacific — o to 1,200 feet). 



The South Coastal Belt embraces the portion of the Pacific lowlands 

 and foothills lying south of the valley of the Rio Grande de Tarcoles. 

 It is for the most part densely forested, but contains some considerable 

 tracts of savanna in the southern part, i. <?. , in the Terraba Valley. In 

 this region are found some species which have worked up the coast 

 from Panama and Chiriqui, entering into Costa Rica only as far as the 

 northern boundary of the belt, or in some cases only as far north as 

 the head of the Terraba Valley. The species peculiar to the region 

 are : Pheugopedius hyperythrus (a few straggle farther north) , P. fascia- 

 toventris melanogaster, Thryophilus semibadins, Basilenterus leucopygius 

 veraguensis, Vireolanius pulchellus viridiceps, Ramphocelus costaricensis, 

 Lanio melanopygiiis, Tachyphonns nitidissimus, Saltator striatipectus 

 isthmicus, S. intermedins, Todirostrum schistaceiceps, Elcenia chiri- 

 quensis, Myiozetetes texensis colombianus, Myiophobus fasciatus fnr- 

 furosits, Manacus aurantiacus, Pipra velutina, Corapipo altera albi- 

 barba, Cotinga ridgwayi, Carpodectes anionics, Synallaxis albescens 

 latitabunda, Automolns pallidigularis exsertus, Dendrocincla anabatina 

 saturata, Deconychura typica, Dendrocolaptes sancti-t/iomce hesperius, 

 Thamnophiliis bridgesi, Gymnocichla nndiceps erratilis, Myrmeciza occi- 

 dentalis, Formicarius hoffmanni, Hylopezus lizanoi, Agyrtria boncardi, 

 Agyrtria amabilis decora, Veniliomis neglectus, Melanerpes chrysauchen, 

 M. ivagleri, Picumnns olivaceus flavotinctns, Trogon bairdi, Dromo- 

 coccyx phasianellus, Chcemepelia minnta, Leptotila verreauxi, Odonto- 

 phorns castigatus, Creciscus albignlaris, Tinamus castaneiceps. 



Foot Hill Belt (1,200 to 4,000 feet). 



Although much drier than the Sub-Tropic Belt, the bird-fauna does 



not greatly differ, except that there are a great many species in that 



zone not found here, but most of those taken in the Foot Hill Belt are 



present in the Sub-Tropic Zone. In fact it may be said to have no very 



distinctive fauna of its own (tropical fauna), being rather a neutral 



belt. Its birds are to a great extent of the Sonoran also, or else 



those forms which cannot be classed as characteristic of any special 



zone. 



Cordilleran Belt (Semi-Arid). 



The Cordilleran Belt of the Semi -Arid Zone is practically the same 

 as that belt in the Humid Zone, except that it has a smaller percentage 

 of tropical forms, being in reality occupied mostly by the Sonoran 



