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| Two new species of frogs of the genus Colostethus (Dendrobatidae) from Peru : and a redescription of C. trilineatus (Boulenger, 1883). American Museum novitates ; no. 3355 |
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| Title: | Two new species of frogs of the genus Colostethus (Dendrobatidae) from Peru : and a redescription of C. trilineatus (Boulenger, 1883). American Museum novitates ; no. 3355 |
| Other Titles: | Peruvian Colostethus |
| Authors: | Grant, Taran. RodrÃguez, Lily O. |
| Issue Date: | 2001 |
| Publisher: | New York, NY : American Museum of Natural History |
| Series/Report no.: | American Museum novitates ; no. 3355 |
| Abstract: | "Colostethus trilineatus (Boulenger, 1883 ) is widespread in the lowlands of Amazonian Peru and Ecuador. It is characterized, in part, by small size, gray throat and Finger III strongly swollen in adult males, and an advertisement call of 10 notes with emphasized frequencies at 4920-6040 Hz. Material examined revealed extensive variation in dorsal, ventral, and thigh coloration. In numerous adult males from several localities Finger II is also swollen. The swelling of Finger II varies intraspecifically, possibly as a function of male reproductive activity. Vocalizations of Colostethus trilineatus recorded at the type locality are temporally distinct from those reported from other localities. At the type locality, advertisement calls are composed of single notes (i.e., not couplets) of (usually) > 40 msec duration and < 90 msec between notes, whereas other calls consist of notes of < 30 msec duration produced as couplets repeated at roughly 200 msec intervals. Although these differences... |
| Description: | 24 p. : ill., map ; 26 cm. Includes bibliographical references (p. 22-24). |
| URI: | http://hdl.handle.net/2246/2908 |
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