Rockstone poison dart frog

The Rockstone poison dart frog (Dendrobates nubeculosus) is a poorly known species of dendrobatid frogs endemic to Guyana. As it is known from only one specimen, very little information is currently available on D. nubeculosus.[1][2][3] It has been suggested to be one of the most poorly known species in the world.[3]

Rockstone poison frog

Data Deficient  (IUCN 3.1)[1]
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Amphibia
Order: Anura
Family: Dendrobatidae
Genus: Dendrobates
Species:
D. nubeculosus
Binomial name
Dendrobates nubeculosus
Jungfer and Böhme, 2004

Description

D. nubeculosus is a small to medium-sized poison dart frog; larger than many of its contemporary Ranitomeya species, but smaller than the other members of the genus Dendrobates. The holotype specimen measures 2.5 centimetres in length, and the species' size range is unknown. It is reasonably certain that, like other members of the genus Dendrobates, D. nubeculosus females are larger than males, but even this is open to speculation. The holotype is primarily black or dark brown, with irregularly shaped blue splotches on the dorsum, and it is mottled blue and black laterally, with a solid black ventral surface.[4] It is unclear whether, as with other Dendrobates species, D. nubeculosus is polymorphic.

Nothing is known about D. nubeculosus' social behaviour, reproductive habits, call, or toxicity. It is assumed that the breeding habits of Dendrobates nubeculosus are similar to that of its sister taxon, D. leucomelas.

Habitat

D. nubeculosus is only known from a single specimen collected by ornithologists in the 1980s.[3][4] No precise habitat data exist but the vegetation in the area of the type locality, near Rockstone, a town on the Essequibo River, lowland jungle.[1][4]

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References
  1. Jungfer, Karl-Heinz (2006). "Dendrobates nubeculosus". IUCN Red List of Threatened Species. 2006: e.T61769A12555832. doi:10.2305/IUCN.UK.2006.RLTS.T61769A12555832.en. Retrieved 6 January 2018.
  2. Frost, Darrel R. (2014). "Dendrobates nubeculosus Jungfer and Böhme, 2004". Amphibian Species of the World: an Online Reference. Version 6.0. American Museum of Natural History. Retrieved 13 September 2014.
  3. Cole, C. J.; Townsend, C. R.; Reynolds, R. P.; MacCulloch, R. D.; Lathrop, A. (2013). "Amphibians and reptiles of Guyana, South America: Illustrated keys, annotated species accounts, and a biogeographic synopsis". Proceedings of the Biological Society of Washington. 125 (4): 317–578. doi:10.2988/0006-324X-125.4.317.
  4. Jungfer, K.-H. & W. Böhme (2004). "A new poison-dart frog (Dendrobates) from northern central Guyana (Amphibia: Anura: Dendrobatidae)" (PDF). Salamandra. 40: 99–104.
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