{"title":"在帕拉南<e:1>和<e:1>奥弗朗西斯科河流域的电刀鱼巴西翼鱼(Apteronotus brasiliensis, Reinhardt, 1852)(裸子目:翼鱼科)头部形态的变化","authors":"M. Triques, Volney. Vono","doi":"10.35699/2675-5327.2013.23843","DOIUrl":null,"url":null,"abstract":"Specimens of Apteronotus brasiliensis from Paraná and São Francisco River basins (Brazil) present snout always moderately elongated, that can be oblique or directed forward or strongly downward. Detailed examination revealed that these head-morphology differences are related to individual variation, not to sex, ontogeny or geographic distribution. \nKeywords: freshwater, morphology, Neotropical fish, Ostariophysi, Teleostei, systematics.","PeriodicalId":445542,"journal":{"name":"Lundiana: International Journal of Biodiversity","volume":"41 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2013-08-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Variation in head morphology in the electric knifefish Apteronotus brasiliensis (Reinhardt, 1852) (Gymnotiformes: Apteronotidae) in the Paraná and São Francisco River Basins\",\"authors\":\"M. Triques, Volney. Vono\",\"doi\":\"10.35699/2675-5327.2013.23843\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Specimens of Apteronotus brasiliensis from Paraná and São Francisco River basins (Brazil) present snout always moderately elongated, that can be oblique or directed forward or strongly downward. Detailed examination revealed that these head-morphology differences are related to individual variation, not to sex, ontogeny or geographic distribution. \\nKeywords: freshwater, morphology, Neotropical fish, Ostariophysi, Teleostei, systematics.\",\"PeriodicalId\":445542,\"journal\":{\"name\":\"Lundiana: International Journal of Biodiversity\",\"volume\":\"41 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2013-08-13\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Lundiana: International Journal of Biodiversity\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.35699/2675-5327.2013.23843\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Lundiana: International Journal of Biodiversity","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.35699/2675-5327.2013.23843","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Variation in head morphology in the electric knifefish Apteronotus brasiliensis (Reinhardt, 1852) (Gymnotiformes: Apteronotidae) in the Paraná and São Francisco River Basins
Specimens of Apteronotus brasiliensis from Paraná and São Francisco River basins (Brazil) present snout always moderately elongated, that can be oblique or directed forward or strongly downward. Detailed examination revealed that these head-morphology differences are related to individual variation, not to sex, ontogeny or geographic distribution.
Keywords: freshwater, morphology, Neotropical fish, Ostariophysi, Teleostei, systematics.
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