| Discovery | Myers, 1982, American Museum Novitates. New York, 2721: 14. |
| Type locality | "mouth of the Río Santiago, 580 feet (177 m.) elevation, Department of Amazonas, Peru. De Río Santiago flows into the Río Marañón at about 4° 26' S, 77° 38' W". |
| Holotype | Holotype (AMNH 42963) in the American Museum of Natural History, New York USA. |
| Etymology | |
| Classification | D. captivus is member of the Dendrobates captivus group. Myers (1982, American Museum Novitates, New York, 2721: 22) suggests D. captivus and D. mysteriosus are sister species. |
| Synonymy | English name: Rio Santiago Poison Frog |
| History | |
| Physical description | A small black frog of 14.6-15.4mm with an orange spot in loins and arm pits. |
| Distribution | Only known from the type locality in Peru. |
| Biotope | |
| Care and breeding | They can be kept at a temperature of 25-27°C. |
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