Rhombophryne serratopalpebrosa

Rhombophryne serratopalpebrosa is a species of frog of the Madagascar endemic microhylid subfamily Cophylinae.[2] Genetic evidence revealed that it is a species complex, in need of resolution. This work has made significant progress, and five related species have been described from this complex between 2014 and 2017.[3][4][5] It is threatened by habitat loss.[3][5][1]

Rhombophryne serratopalpebrosa
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Amphibia
Order: Anura
Family: Microhylidae
Subfamily: Cophylinae
Genus: Rhombophryne
Species:
R. serratopalpebrosa
Binomial name
Rhombophryne serratopalpebrosa
(Guibé, 1975)
Synonyms
  • Mantipus serratopalpebrosus Guibé, 1975
  • Plethodontohyla serratopalpebrosa (Guibé, 1975)

Range and distribution
Range of Rhombophryne serratopalpebrosa.

Rhombophryne serratopalpebrosa is endemic to the Marojejy massif in northern Madagascar. At present it is only known with certainty from the holotype specimen.[3] Its type locality is at high elevation on the Marojejy massif.[6] Records from outside of Marojejy National Park may refer to other species, and at present this species has only been confirmed from this single location.[3]

Description

The holotype of Rhombophryne serratopalpebrosa measures roughly 29 mm (1.1 in) long. Its fingers and toes are unwebbed, and its dorsal skin is grainy.[3] It possesses four spines above each eye, the posterior-most of which is indistinct.[3]

Taxonomy

Rhombophryne serratopalpebrosa was described as a member of the genus Plethodontohyla by Guibé in 1975.[6] Plethodontohyla serratopalpebrosa was transferred to the genus Rhombophryne by Wollenberg and colleagues.[7] The original description was brief, and the species was re-described by Scherz and colleagues in 2014[3] to facilitate a review of the R. serratopalpebrosa species complex.

The closest related species of Rhombophryne share also the superciliary spines: Rhombophryne vaventy, R. coronata, R. ornata, R. tany, R. regalis, and R. diadema[3][8][4][5] — together these species form the "Rhombophryne serratopalpebrosa species group".[4][5] The closest relative is suspected to be R. regalis, which is smaller but shares certain morphological characters such as an s-shaped fold posterior to the nostril,[5] but their relationship is uncertain due to the lack of genetic material from R. serratopalepbrosa.[5]

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References
  1. Raxworthy, C. & Andreone, F. (2008). "Rhombophryne serratopalpebrosa". IUCN Red List of Threatened Species. 2008. Retrieved 1 May 2015.CS1 maint: ref=harv (link)
  2. Frost, Darrel R. (2015). "Rhombophryne serratopalpebrosa (Guibé, 1975)". Amphibian Species of the World: an Online Reference. Version 6.0. American Museum of Natural History. Retrieved 1 May 2015.
  3. Scherz, Mark D.; Ruthensteiner, Bernhard; Vences, Miguel; Glaw, Frank (2014). "A new microhylid frog, genus Rhombophryne, from northeastern Madagascar, and a re-description of R. serratopalpebrosa using micro-computed tomography" (PDF). Zootaxa. 3860 (6): 547–560. doi:10.11646/zootaxa.3860.6.3. PMID 25283290.
  4. Scherz, Mark D.; Ruthensteiner, Bernhard; Vieites, David R.; Vences, Miguel; Glaw, Frank (2015). "Two new microhylid frogs of the genus Rhombophryne with superciliary spines from the Tsaratanana Massif in northern Madagascar". Herpetologica. 71 (4): 310–321. doi:10.1655/HERPETOLOGICA-D-14-00048.
  5. Scherz, Mark D.; Hawlitschek, Oliver; Andreone, Franco; Rakotoarison, Andolalao; Vences, Miguel; Glaw, Frank (2017-06-06). "A review of the taxonomy and osteology of the Rhombophryne serratopalpebrosa species group (Anura: Microhylidae) from Madagascar, with comments on the value of volume rendering of micro-CT data to taxonomists". Zootaxa. 4273 (3): 301. doi:10.11646/zootaxa.4273.3.1. ISSN 1175-5334. PMID 28610237.
  6. Guibé, J. (1975). "Batraciens nouveaux de Madagascar". Bulletin du Muséum National d'Histoire Naturelle. 3: 1081–1089.
  7. Wollenberg, Katharina C.; Vieites, David R.; van der Meijden, Arie; Glaw, Frank; Cannatella, David C.; Vences, Migeul (2008). "Patterns of endemism and species richness in Malagasy cophyline frogs support a key role of mountainous areas for speciation". Evolution. 62 (8): 1890–1907. doi:10.1111/j.1558-5646.2008.00420.x. PMID 18485110.
  8. Glaw, Frank; Vences, Miguel (2007). A Field Guide to the Amphibians and Reptiles of Madagascar (Third ed.). Cologne, Germany: Vences & Glaw GbR. p. 118. ISBN 978-3-929449-03-7.
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