Back from the deaf: integrative taxonomy revalidates an earless and mute species, Hylodes grandoculis van Lidth de Jeude, 1904, and confirms a new species of Pristimantis Jiménez de la Espada, 1870 (Anura: Strabomantidae) from the Eastern Guiana Shield

Fouquet, Antoine; Peloso, Pedro L. V.; Jairam, Rawien; Lima, Albertina P.; Mônico, Alexander Tamanini; Ernst, Raffael; Kok, Philippe J. R.

doi:10.1007/s13127-022-00564-w

Cited by 12 publications

(14 citation statements)

References 55 publications

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“…A further three new samples (UF-193779-81) form a monophyletic group with a specimen (ROM-40164) that was originally identified as P. inguinalis (Hedges et al 2008) but the availability of additional genetic material has since shown that it is a distinct species from P. inguinalis labelled as P. sp. “Ayanganna” in the phylogeny included in Fouquet et al (2022). These two previously undescribed species are notable in that they are sister species but occur on the Wokomung Massif.…”

Section: Resultsmentioning

confidence: 99%

“…The undescribed species, represented by specimen ROM-43978 and by newly sequenced sample UF-193778, was labelled as P. zeuctotylus in Hedges et al (2008) and as P. sp. “Wokomung” in Fouquet et al (2022). It is phylogenetically nested within the lacrimosus species group, most species of which occur in Amazonia and inhabit bromeliads (Hedges et al 2008).…”

Section: Resultsmentioning

confidence: 99%

“…These include phylogeographic studies (Fouquet et al 2012, Kok et al 2012), twelve additional new species descriptions (Barrio-Amorós & Brewer-Carias 2008, Myers & Donnelly 2008, Barrio-Amorós et al 2010, Kok et al 2011, Fouquet et al 2013, 2022, Kok 2013, Mônico et al 2022, Rödder & Jungfer 2008, Rojas-Runjaic et al 2013) and a redescription of P. marmoratus that was previously a catch-all taxon used to designate many Guiana Shield Pristimantis populations but has now been restricted to populations in the Pantepui Region surrounding the Brazil/Guyana/Venezuela border triple point including the Wokomung Massif (Kok et al 2018c). From this burst of recent work, sequence data are now available for more than 20 out of 32 named species of Guiana Shield Pristimantis , and it is clear that P. jester and P. saltissimus belong to a broader clade of mostly Guiana Shield species within the unistrigatus group (Fouquet et al 2022). This new context allows us to revisit a set of Pristimantis specimens from the Wokomung Massif that were previously left unidentified, tentatively identified, or simply misidentified.…”

Section: Introductionmentioning

confidence: 99%

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Exceptional diversity of Pristimantis Landfrogs (Anura: Terraranae) on the Wokomung Massif, Guyana, with descriptions of three new species

Means

Heinicke

MacCulloch

et al. 2023

Journal of Vertebrate Biology

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We describe three new species of landfrogs, genus Pristimantis, from near the summit of Mt. Kopinang, one of the several high points of the Wokomung Massif, a large horseshoe-shaped tepui (= mesa) in west-central Guyana. Pristimantis koki n. sp. is known from 1,067 to 1,525 m elevation. It is characterized by small-sized adults averaging 12.4 mm SVL (snout-vent length) in males and 18.4 mm in females; a pointed, depressed, elongated snout; lack of an obvious tympanum, vocal slit, or sac; and diagnostically black pigment prominently arranged around the anus fringed by light pigment. When handled, P. koki seems to emit volatile organic compounds and leaves a slightly numbing taste at the base of the human tongue. Pristimantis kopinangae n. sp. is known from three specimens collected at approx. 1,385 m elevation on the Wokomung Massif and two specimens from slightly higher in elevation on Mt. Ayanganna. About the size of most Pristimantis inhabiting the Guyana uplands and highlands (20-30 mm SVL), it is characterized by 2-3 light yellow inguinal flash-mark blotches, short broadly round snout, large eye with a blue iris, white skin of chin and areolate belly with dark brown vermiculations; and absence of a tympanum. Pristimantis kalamandeenae n. sp. is known from three specimens collected on the Wokomung Massif including an amplexing pair at approx. 1,550 m elevation. Similar in size to P. kopinangae, it is characterized by an acuminate snout, black iris, obvious tympanum, and uniform tan pigmentation dorsally after dark that becomes uniformly dark brown in daytime. Phylogenetic results show that P. koki and P. kopinangae are sister species and are members of a larger assemblage of related species endemic to the Pantepui Region within the P. unistrigatus species group. Pristimantis kalamandeenae is not closely related to these species, instead forming a clade with the P. lacrimosus species group. The three new species occur in sympatry with at least five other Pristimantis species on the Wokomung Massif, the greatest known Pristimantis species richness on a single tepui of the Guiana Shield.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Exceptional diversity of Pristimantis Landfrogs (Anura: Terraranae) on the Wokomung Massif, Guyana, with descriptions of three new species

Means

Heinicke

MacCulloch

et al. 2023

Journal of Vertebrate Biology

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“…Family Craugastoridae Hedges,Duellman & Heinicke, 2008 Pristimantis marmoratus(Boulenger, 1900) is currently distributed in the western portion of the Guiana Shield, through Venezuela and Guyana, and its sister clade has a more eastern distribution, occurring in French Guiana and Amapá(Kok et al 2018) Fouquet et al (2022b). recently described this clade as Pristimantis crepitaculus Fouquet, Peloso, Jairam, Lima, Mônico, Ernst & Kok, 2022.…”

mentioning

confidence: 99%

“…ockendeni, but they also recorded P. marmoratus. Besides P. crepitaculus,Fouquet et al (2022b) also mention P. grandoculis…”

mentioning

confidence: 99%

Anurans (Amphibia: Anura) of the Brazilian state of Amapá, eastern Amazonia: species diversity and knowledge gaps

Taucce

Costa-Campos

Carvalho

et al. 2022

EJT

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We herein present the first annotated anuran checklist for the Brazilian state of Amapá, eastern Amazonia, based on a thorough literature review. We recorded the occurrence of 111 species belonging to 13 anuran families distributed across 48 localities throughout Amapá, within two biomes. Among these species, 62.5% occur exclusively in the Tropical Moist Broadleaf Forest biome, ~8% occur exclusively in the Tropical Savanna biome, and ~29% occur in both. Two species were considered endemic to Amapá and were registered only in the central portion of the state. Regarding the conservation status, only one species (Dendropsophus amicorum) is classified as threatened, assigned to the “critically endangered” category. The other species are categorized as either “least concern” or “data deficient” (85 and 8, respectively), whereas 21 are not evaluated. The current annotated list contributes to the incipient knowledge on anuran species richness in Amapá and, despite the research regarding anuran taxonomy has considerably progressed over the past 20 years, there is still much to do. Our data highlight the need for trained taxonomists to develop research in the state.

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First Eocene–Miocene anuran fossils from Peruvian Amazonia: insights into neotropical frog evolution and diversity

Jansen,

Gómez,

Fouquet

et al. 2023

Papers in Palaeontology

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Anurans are one of the most diverse vertebrate groups, particularly in Amazonia, where species richness exceeds that of anywhere else. Amazonian frogs belong to three main lineages (Hyloidea, Microhylidae and Pipidae), each of which diversified during the Cenozoic. However, due to the virtual absence of an anuran fossil record in that area, the evolutionary history of modern lineages has so far remained accessible only via molecular data. In recent decades, a series of field campaigns in Peruvian Amazonia led to the discovery of an unparalleled set of anuran bone fragments, scattered across different sites spanning the Eocene–Miocene time interval. Here, we describe these first Palaeogene and early Neogene anurans from Peru with a focus on humeral and ilial morphology, identifying five humeral and five ilial morphotypes. Humeral morphotypes suggest the presence of different lineages of Brachycephaloidea in Peruvian fossil assemblages, whereas ilial morphotypes suggest the presence of Leptodactylidae, although leptodactylid‐like ilia also occur in some extant brachycephaloids. Pipids were also identified based on both humeral and ilial fragments. This study fills a major temporal and geographical gap in the evolutionary history of South American anurans, while further uncovering a lack of knowledge in the skeletal morphology of extant anuran families, as well as their inter‐ and intra‐species variability.

show abstract

Back from the deaf: integrative taxonomy revalidates an earless and mute species, Hylodes grandoculis van Lidth de Jeude, 1904, and confirms a new species of Pristimantis Jiménez de la Espada, 1870 (Anura: Strabomantidae) from the Eastern Guiana Shield

Cited by 12 publications

References 55 publications

Exceptional diversity of Pristimantis Landfrogs (Anura: Terraranae) on the Wokomung Massif, Guyana, with descriptions of three new species

Exceptional diversity of Pristimantis Landfrogs (Anura: Terraranae) on the Wokomung Massif, Guyana, with descriptions of three new species

Anurans (Amphibia: Anura) of the Brazilian state of Amapá, eastern Amazonia: species diversity and knowledge gaps

First Eocene–Miocene anuran fossils from Peruvian Amazonia: insights into neotropical frog evolution and diversity

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