Silverstoneia minutissima Grant & Myers, 2013
|Species Description: Grant T, Myers CW 2013 Review of the frog genus Silverstoneia, with descriptions of five new species from the Colombian Choco (Dendrobatidae: Colosteninae). Amer Mus Novitates 2784: 1-58.|
Silverstoneia minutissima is highly similar to other members of the genus in terms of physical appearance. However, this species lacks the swollen third fingers in adult males that are usually present in other Silverstoneia species. Additionally, S. minutissima is also has the smallest average snout-vent length for a species than others in the genus. Slivertoneia minima is most similar to S. minutissima. Both species lack conspicuous dark blotches on the ventral side and the swollen third fingers in adult males. In comparison, S. minutissima has paler thighs while S. minima has more darkish pigmentation present dorsally. Silvertoneia minutissima is also smaller than S. minima (Grant and Myers 2013).
In life, the dorsal surface is dark brown. The solid blackish-brown flank is divided by a creamy greenish oblique lateral stripe, extending from the groin to the eye. The throat, breast, and belly have a similar creamy whitish color with a green tinge. The limbs are dorsally light brown and ventrally whitish orange. Tiny, dull orange spots are also present on the dorsal side of the thighs. Preserved specimens are mostly dorsally brown, while random darker or lighter blotches are present. A diffused stripe caused by the underlying vertebral column can be visible through the skin. The eyelids appear blackish (Grant and Myers 2013).
Distribution and Habitat
Life History, Abundance, Activity, and Special Behaviors
Little information is known about the reproduction and development of the species. Referring to the life history of its congeners, it is expected that females adults would lay eggs in the leaf litter, and male nurse frogs would transport the back-riding larvae to water bodies. CITATION NEEDED
Trends and Threats
Possible reasons for amphibian decline
General habitat alteration and loss
IUCN SSC Amphibian Specialist Group. (2020). “Silverstoneia minutissima (amended version of 2017 assessment).” The IUCN Red List of Threatened Species 2020:e.T78586339A177155387. https://dx.doi.org/10.2305/IUCN.UK.2020-3.RLTS.T78586339A177155387.en. Accessed on 07 May 2022.
Originally submitted by: Shisu Cheng (2023-07-11)
Description by: Shisu Cheng (updated 2023-07-11)
Distribution by: Shisu Cheng (updated 2023-07-11)
Life history by: Shisu Cheng (updated 2023-07-11)
Larva by: Shisu Cheng (updated 2023-07-11)
Trends and threats by: Shisu Cheng (updated 2023-07-11)
Comments by: Shisu Cheng (updated 2023-07-11)
Edited by: Ann T. Chang (2023-07-11)
Species Account Citation: AmphibiaWeb 2023 Silverstoneia minutissima <https://amphibiaweb.org/species/8082> University of California, Berkeley, CA, USA. Accessed Dec 11, 2023.
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Citation: AmphibiaWeb. 2023. <https://amphibiaweb.org> University of California, Berkeley, CA, USA. Accessed 11 Dec 2023.
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