Morphological distinction between estuarine polychaetes: Laeonereis culveri and L. nota (Phyllodocida: Nereididae)
The family Nereididae includes more than 500 polychaete species described worldwide, and includesspecies common in many benthic environments, but some other species may tolerate freshwater or can eventhrive in humid substrates in tropical forests. In estuarine environments, nereidid polychaetes can...
| Autores: | , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2016 |
| País: | México |
| Institución: | Universidad del Mar |
| Repositorio: | Redalyc-UMAR |
| OAI Identifier: | oai:redalyc.org:44943437017 |
| Acceso en línea: | https://www.redalyc.org/articulo.oa?id=44943437017 |
| Access Level: | acceso abierto |
| Palabra clave: | Biología Taxonomy Annelida Polychaeta shorebirds Caribbean Sea |
| Sumario: | The family Nereididae includes more than 500 polychaete species described worldwide, and includesspecies common in many benthic environments, but some other species may tolerate freshwater or can eventhrive in humid substrates in tropical forests. In estuarine environments, nereidid polychaetes can be abundantand relevant as a food source for resident or migratory birds. Laeonereis culveri (Webster, 1879) is a commonestuarine species found in tropical and subtropical Atlantic American shores and was described from NewJersey; its median and posterior parapodia have upper notopodial ligules usually longer than the lower ones,and the latter are parallel to the notaciculae throughout the body. L. culveri distribution is from Connecticutto central Argentina; however, this wide distribution might be due to the inclusion of several other species asjunior synonyms, despite that some morphological differences were found between them. One of such speciesis L. nota (Treadwell, 1941), that was described from Texas; its parapodia have notopodial ligules of about thesame size, and the lower ones are oblique to the notaciculae. In order to clarify the differences between thesetwo species, and to define which inhabits the Northwestern Caribbean region, topotype materials from these twospecies and specimens from Chetumal Bay were collected, and their morphological features were compared. Ourresults indicated that L. culveri and L. nota are different species and that the latter is found in Chetumal Bay. Onthe basis of mature specimens, L. culveri is hereby restricted to the Northern Gulf of Mexico and NorthwesternAtlantic Ocean, and L. nota is reinstated and its distribution extends from Texas, in the Gulf of Mexico toChetumal Bay, in the Northwestern Caribbean Sea. A key to identify all species in Laeonereis Hartman (1945)is also included.¿ |
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