A new species of the genus Squalius (Leuciscidae, Actinopterygii) from the Sado River basin in Portugal
A new species, Squalius caetobrigus sp. nov., is described based on morphological and genetic traits. Squalius caetobrigus sp. nov. can be distinguished from other Squalius species through a combination of morphometric, meristic and genetic characteristics: 39-42 (X=40.7; X̃=41) canaliculate scales...
| Autores: | , , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión aceptada para publicación |
| Fecha de publicación: | 2024 |
| País: | España |
| Institución: | Consejo Superior de Investigaciones Científicas (CSIC) |
| Repositorio: | DIGITAL.CSIC. Repositorio Institucional del CSIC |
| OAI Identifier: | oai:digital.csic.es:10261/388547 |
| Acceso en línea: | http://hdl.handle.net/10261/388547 |
| Access Level: | acceso abierto |
| Palabra clave: | Taxonomy Iberian Peninsula Squalius Cypriniformes Leuciscidae Genetics Morphology |
| Sumario: | A new species, Squalius caetobrigus sp. nov., is described based on morphological and genetic traits. Squalius caetobrigus sp. nov. can be distinguished from other Squalius species through a combination of morphometric, meristic and genetic characteristics: 39-42 (X=40.7; X̃=41) canaliculate scales on the lateral line; 6-7 (X=7; X̃=7) scales above the lateral line; 3-4 (X=3.1; X̃=3) scales below the lateral line; short preorbital distance HL/PrOL is 4.2-6.2 (X= 5); no contact between the fourth infraorbital bone and the preopercular; short dentary with a very developed coronoid process; the posterior process of the maxilla is long and thin as well as the lower branch of the pharyngeal bone; small pharyngeal plate of the pharyngeal bone and 5 autapomorphies in the mitochondrial cytochrome b gene. Squalius caetobrigus is restricted to the Sado River basin in southern Portugal. |
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