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Hamilton ZR. Repeated evolution of an undescribed morphotype of Rhagada (Gastropoda : Camaenidae) from the inland Pilbara, Western Australia. INVERTEBR SYST 2021. [DOI: 10.1071/is20038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
An undescribed small, banded morphotype of Rhagada land snails occurs widely in the rocky inland Pilbara region, Western Australia. Phylogenetic analysis of mitochondrial COI and 16S rRNA genes revealed that this novel morphotype is polyphyletic, comprising four distinct major clades, with divergences up to 21.4% at COI. These clades are apparently morphologically cryptic, with no obvious shell differences. Two of these species are associated with the major clade of Rhagada in the Pilbara mainland, one of which appears to be a variant of the larger, more globose species R. pilbarana, which occurs within 20km proximity. The other two small, banded species are phylogenetically distinct from each other and all other known Rhagada. This small, banded morphotype shows evidence for both plesiomorphy and homoplasy. The morphotype has evolved independently at least twice, and is associated with the reasonably uniform habitat and harsh conditions in the elevated hinterland of the inland Pilbara. The broad distribution of the inland, small, banded morphotype conforms to the pattern of broad-scale uniformity of shells of the more coastal species of Rhagada. Its repeated evolution, however, confirms that the morphological uniformity is not simply because of common ancestry, supporting the theory that shell form in Rhagada is adapted to a broadly homogenous environment. Shell morphology in this genus has been demonstrated on more than one occasion to have the potential to adapt to different available environments, and hence shells should be used with a degree of caution for taxonomic interpretation.
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Hamilton ZR, Johnson MS. Hybridization between genetically and morphologically divergent forms ofRhagada(Gastropoda: Camaenidae) snails at a zone of secondary contact. Biol J Linn Soc Lond 2014. [DOI: 10.1111/bij.12410] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Affiliation(s)
- Zoë R. Hamilton
- School of Animal Biology (M092); University of Western Australia; Crawley WA 6009 Australia
| | - Michael S. Johnson
- School of Animal Biology (M092); University of Western Australia; Crawley WA 6009 Australia
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Barker NP, Fearon JL, Herbert DG. Moisture variables, and not temperature, are responsible for climate filtering and genetic bottlenecks in the South African endemic terrestrial mollusc Prestonella (Orthalicoidea). CONSERV GENET 2013. [DOI: 10.1007/s10592-013-0496-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Parkyn J, Newell DA. Australian land snails: a review of ecological research and conservation approaches. MOLLUSCAN RESEARCH 2013. [DOI: 10.1080/13235818.2013.782793] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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CRISCIONE FRANCESCO, LAW MARGOTLOUISA, KÖHLER FRANK. Land snail diversity in the monsoon tropics of Northern Australia: revision of the genusExiligadaIredale, 1939 (Mollusca: Pulmonata: Camaenidae), with description of 13 new species. Zool J Linn Soc 2012. [DOI: 10.1111/j.1096-3642.2012.00863.x] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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KÖHLER FRANK, JOHNSON MICHAELS. Species limits in molecular phylogenies: a cautionary tale from Australian land snails (Camaenidae: Amplirhagada Iredale, 1933). Zool J Linn Soc 2012. [DOI: 10.1111/j.1096-3642.2011.00810.x] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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JOHNSON MICHAELS, HAMILTON ZOËR, TEALE ROY, KENDRICK PETERG. Endemic evolutionary radiation of Rhagada land snails (Pulmonata: Camaenidae) in a continental archipelago in northern Western Australia. Biol J Linn Soc Lond 2012. [DOI: 10.1111/j.1095-8312.2012.01882.x] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Mitochondrial phylogeny and biogeographic history of the Greek endemic land-snail genus Codringtonia Kobelt 1898 (Gastropoda, Pulmonata, Helicidae). Mol Phylogenet Evol 2012; 62:681-92. [DOI: 10.1016/j.ympev.2011.11.012] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2011] [Revised: 11/08/2011] [Accepted: 11/15/2011] [Indexed: 11/20/2022]
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Köhler F. The Camaenid Species of the Kimberley Islands, Western Australia (Stylommatophora: Helicoidea). MALACOLOGIA 2011. [DOI: 10.4002/040.054.0108] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Köhler F. Australocosmica,A New Genus of Land Snails from the Kimberley, Western Australia (Eupulmonata, Camaenidae). MALACOLOGIA 2011. [DOI: 10.4002/040.053.0201] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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