. Annals of the Carnegie Museum. Carnegie Museum; Carnegie Museum of Natural History; Natural history. 72 Annals of the Carnegie Museum. Microrhopias intermedia Sakcsphorus pulcJiellus Myiarchus tyrannulus tyrannulus Ekcnia gaimardii bogotensis Phccomyias tenuirostris Euscarthmus impiger Mini us gilvus columbianus Polioptila plumbiccps Helcodytes minor albicilius Pachysylvia aurantiifrons auran- tiifrons Ccereba luteola lutcola Cacicns eel a Thraupis glaucocolpa Some of the above we know do not range westward beyond the semi-arid region of the northeast coast, as for instance Microrhopias inte
. Annals of the Carnegie Museum. Carnegie Museum; Carnegie Museum of Natural History; Natural history. 72 Annals of the Carnegie Museum. Microrhopias intermedia Sakcsphorus pulcJiellus Myiarchus tyrannulus tyrannulus Ekcnia gaimardii bogotensis Phccomyias tenuirostris Euscarthmus impiger Mini us gilvus columbianus Polioptila plumbiccps Helcodytes minor albicilius Pachysylvia aurantiifrons auran- tiifrons Ccereba luteola lutcola Cacicns eel a Thraupis glaucocolpa Some of the above we know do not range westward beyond the semi-arid region of the northeast coast, as for instance Microrhopias intermedia, which is replaced in the lower Magdalena Valley by a distinct species, Microrhopias alticincta liondcr; Cacicns cela, which is similarly replaced by Cacicns vitellinus; and Elccnia gaimardii bogo- tensis, replaced by Elccnia gaimardii macilvainii. (See Figure 2.). Fig. 2. Range of Microrhopias intermedia (i), a species of the Arid Trop- ical Zone which enters the Santa Marta Region from the east, but is replaced in the Magdalena Valley by an allied form, M. alticincta liondcr (2). The presumption is strong, therefore, that the species in this list have reached their present range in the littoral of Colombia by extending their range westward along the coast, some having gone farther than others. At any rate, few of these forms are yet known from the. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Carnegie Museum; Carnegie Museum of Natural History. [Pittsburgh] : Published by authority of the Board of Trustees of the Carnegie Institute
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectnatural, bookyear1922
