Systematic revision of Afrogecko ansorgii (Boulenger, 1907)(Sauria: Gekkonidae) from western Angola
- Lobón-Rovira, Javier, Conradie, Werner C, Pinto, Pedro V, Keates, Chad, Edwards, Shelley, du Plessis, Anton, Branch, William R
- Authors: Lobón-Rovira, Javier , Conradie, Werner C , Pinto, Pedro V , Keates, Chad , Edwards, Shelley , du Plessis, Anton , Branch, William R
- Date: 2022
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/461550 , vital:76212 , xlink:href="https://doi.org/10.11646/zootaxa.5124.4.1"
- Description: Here we provide the first phylogenetic analysis that include Afrogecko ansorgii and a detailed morphological comparison with other species of leaf-toed geckos. For this purpose, we used two mitochondrial (16S, ND2) and four nuclear (RAG1, RAG2, CMOS, PDC) genes to produce a robust phylogenetic reconstruction. This allowed us to show that A. ansorgii is not related as previously believed to circum-Indian Ocean leaf-toed geckos and is rather more closely related to other Malagasy leaf-toed geckos. Additionally, we explore and compare osteological variation in A. ansorgii skulls through High Resolution X-ray Computed Tomography with previously published material. This allowed us to describe herein a new genus, Bauerius gen. nov., and additionally provide a detailed redescription of the species (including the first description of male material), supplementing the limited original description and type series, which consisted of only two females.
- Full Text:
- Date Issued: 2022
- Authors: Lobón-Rovira, Javier , Conradie, Werner C , Pinto, Pedro V , Keates, Chad , Edwards, Shelley , du Plessis, Anton , Branch, William R
- Date: 2022
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/461550 , vital:76212 , xlink:href="https://doi.org/10.11646/zootaxa.5124.4.1"
- Description: Here we provide the first phylogenetic analysis that include Afrogecko ansorgii and a detailed morphological comparison with other species of leaf-toed geckos. For this purpose, we used two mitochondrial (16S, ND2) and four nuclear (RAG1, RAG2, CMOS, PDC) genes to produce a robust phylogenetic reconstruction. This allowed us to show that A. ansorgii is not related as previously believed to circum-Indian Ocean leaf-toed geckos and is rather more closely related to other Malagasy leaf-toed geckos. Additionally, we explore and compare osteological variation in A. ansorgii skulls through High Resolution X-ray Computed Tomography with previously published material. This allowed us to describe herein a new genus, Bauerius gen. nov., and additionally provide a detailed redescription of the species (including the first description of male material), supplementing the limited original description and type series, which consisted of only two females.
- Full Text:
- Date Issued: 2022
A new species of red toad, Schismaderma Smith, 1849 (Anura: Bufonidae), from central Angola
- Baptista, Ninda L, Pinto, Pedro V, Keates, Chad, Edwards, Shelley, Rödel, Mark-Oliver, Conradie, Werner C
- Authors: Baptista, Ninda L , Pinto, Pedro V , Keates, Chad , Edwards, Shelley , Rödel, Mark-Oliver , Conradie, Werner C
- Date: 2021
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/461462 , vital:76204 , xlink:href="https://www.biotaxa.org/Zootaxa/article/view/zootaxa.5081.3.1"
- Description: A new species of red toad, from the previously monotypic genus Schismaderma, is described. The new species was found in Malanje Province, and seems endemic to central Angola, occurring approximately 500 km west of the closest known records of Schismaderma carens. Unusual adult colouration and geographical distance to remaining S. carens populations suggested specific differentiation. In an integrative approach, we compared the red toads from central Angola with S. carens from across the entire range, including molecular data, morphology of adults and tadpoles, and male advertisement calls. Phylogenetic analysis based on mitochondrial (12S, 16S, COI) and nuclear (CXCR4, RAG1) markers, retrieved the Angolan clade as monophyletic, and revealed intra-specific substructuring among the remaining Schismaderma. Genetic distances supported specific differentiation of the central Angolan material compared with other S. carens. Adults from the new Angolan species have bolder ventral patterning and smaller body size than S. carens. No obvious differences were detected between the tadpoles and the advertisement calls of the two Schismaderma species. This discovery adds to the knowledge of the herpetofauna of the Angolan Miombo woodlands, a poorly understood ecoregion, and likely more biodiverse than previously assumed. The result of past river basin dynamics in central Angola likely led to the evolution of this new species of Schismaderma.
- Full Text:
- Date Issued: 2021
- Authors: Baptista, Ninda L , Pinto, Pedro V , Keates, Chad , Edwards, Shelley , Rödel, Mark-Oliver , Conradie, Werner C
- Date: 2021
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/461462 , vital:76204 , xlink:href="https://www.biotaxa.org/Zootaxa/article/view/zootaxa.5081.3.1"
- Description: A new species of red toad, from the previously monotypic genus Schismaderma, is described. The new species was found in Malanje Province, and seems endemic to central Angola, occurring approximately 500 km west of the closest known records of Schismaderma carens. Unusual adult colouration and geographical distance to remaining S. carens populations suggested specific differentiation. In an integrative approach, we compared the red toads from central Angola with S. carens from across the entire range, including molecular data, morphology of adults and tadpoles, and male advertisement calls. Phylogenetic analysis based on mitochondrial (12S, 16S, COI) and nuclear (CXCR4, RAG1) markers, retrieved the Angolan clade as monophyletic, and revealed intra-specific substructuring among the remaining Schismaderma. Genetic distances supported specific differentiation of the central Angolan material compared with other S. carens. Adults from the new Angolan species have bolder ventral patterning and smaller body size than S. carens. No obvious differences were detected between the tadpoles and the advertisement calls of the two Schismaderma species. This discovery adds to the knowledge of the herpetofauna of the Angolan Miombo woodlands, a poorly understood ecoregion, and likely more biodiverse than previously assumed. The result of past river basin dynamics in central Angola likely led to the evolution of this new species of Schismaderma.
- Full Text:
- Date Issued: 2021
- «
- ‹
- 1
- ›
- »