. Ecuadorian frogs of the genus Colostethus (Anura:Dendrobatidae) . 600 M. CONTOUR OVER 3000 M. ] OVER 5000 M 640100 KILOMETERS Fig. 12. Distributions of Colostethus infraguttatus (â¢), C. maquipucuna (â ), and C. marchesianus (A). Colostethus jacobuspetersi has not been found sympatrically with any other dendrobatids, but in the vicinity of Pallatanga, it occurs near C. infraguttatus. In the Paramos de Guamani on the western slopes of the Cordillera Oriental, it occurs near C. pulchellus. Patzelt (1978) published a photograph of a C. jacobuspetersi carrying four tadpoles. Comments.âRivero (19


. Ecuadorian frogs of the genus Colostethus (Anura:Dendrobatidae) . 600 M. CONTOUR OVER 3000 M. ] OVER 5000 M 640100 KILOMETERS Fig. 12. Distributions of Colostethus infraguttatus (â¢), C. maquipucuna (â ), and C. marchesianus (A). Colostethus jacobuspetersi has not been found sympatrically with any other dendrobatids, but in the vicinity of Pallatanga, it occurs near C. infraguttatus. In the Paramos de Guamani on the western slopes of the Cordillera Oriental, it occurs near C. pulchellus. Patzelt (1978) published a photograph of a C. jacobuspetersi carrying four tadpoles. Comments.âRivero (1991b) described C. toirenticola and C. jacobuspetersi in the same pa- per. He noticed the similarity of both species and distinguished them by the different ventral colora- tion, smaller size and shorter snout of C. toirenticola. Rivero (1991b) compared specimens from the Guaranda-Pilalo region (an area between the type localities of C. jacobuspetersi and C. toirenticola) with C. toirenticola and C. jacobuspetersi and he suggested (Rivero, 1991b:6) that C. toirenticola


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