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Français : Caractéristiques morphologiques clés utiles pour distinguer les trois espèces d’Electrophorus. En haut, radiographies de la vue latérale de la partie antérieure du corps (crâne et ceinture pectorale surlignés en rouge). Le cleithrum se situe entre les cinquième et sixième vertèbres (v) dans Electrophorus electricus (a) et E. voltai (b) par rapport aux première et deuxième vertèbres chez E. varii (c).
En bas, illustrations de la vue ventrale de la tête, montrant les principales caractéristiques. Provenance des spécimens : a : Musée national d'histoire naturelle, NMNH 403765, 300 mm de long, capturé dans la rivière Cuyuni, Guyana; en bas: NMNH 225576, 1000 mm TL, rivière Corantijn, Suriname. b en haut: Institut national de recherches en Amazonie, INPA 39009, 450 mm de long, rivière Teles Pires, Brésil; en bas: Académie des sciences naturelles de l'Université de Drexel, ANSP 197583 (t3539), 1280 mm de long, fleuve Xingu, Brésil. c en haut: 306677 NMNH, 450 mm de long, Lago Janauari, fleuve Amazone, Brésil ; en bas: NMNH 196634, 1220 mm de long, fleuve Amazone, Brésil. d'après C. David de Santana et al 2019 Nature Communications volume 10, Article number: 4000 (2019) (illustration orignellement légendée en anglais) English: Key morphological features to recognize the three species of Electrophorus. Top, radiographs of lateral view of the anterior portion of body (skull and pectoral girdle highlighted red). The cleithrum lies between the fifth and sixth vertebrae (v) in Electrophorus electricus (a) and E. voltai (b) versus first and second vertebrae in E. varii (c). Bottom, illustrations of ventral view of the head, showing key features listed in Diagnoses. a top: National Museum of Natural History, NMNH 403765, 300 mm TL, Cuyuni River, Guyana; bottom: NMNH 225576, 1000 mm TL, Corantijn River, Suriname. b top: Instituto Nacional de Pesquisas de Amazônia, INPA 39009, 450 mm TL, Teles Pires River, Brazil; bottom: Academy of Natural Sciences of Drexel University, ANSP 197583 (t3539), 1280 mm TL, Xingu River, Brazil. c top: NMNH 306677, 450 mm TL, Lago Janauari, Amazon River, Brazil; bottom: NMNH 196634, 1220 mm TL, Amazon River, Brazil.
Distinguished by head narrow, Fig. 2a (versus wide, Fig. 2b, in E. voltai; distance between medial margins of contralateral dentaries at transverse through last two ventral pores 2–3 times shorter in E. varii than E. voltai, Fig. 2a, b), skull deep, cleithrum lies between vertebrae 1 and 2, Fig. 2b (versus skull depressed, cleithrum lies between vertebrae 5 and 6, in both E. electricus and E. voltai Fig. 2a, c). From C. David de Santana et al 2019 (Revue Nature) |
| Date | |
| Source |
https://www.nature.com/articles/s41467-019-11690-z https://doi.org/10.1038/s41467-019-11690-z |
| Author | C. David de Santana, William G. R. Crampton, Casey B. Dillman, Renata G. Frederico, Mark H. Sabaj, Raphaël Covain, Jonathan Ready, Jansen Zuanon, Renildo R. de Oliveira, Raimundo N. Mendes-Júnior, Douglas A. Bastos, Tulio F. Teixeira, Jan Mol, Willian Ohara, Natália Castro e Castro, Luiz A. Peixoto, Cleusa Nagamachi, Leandro Sousa, Luciano F. A. Montag, Frank Ribeiro, Joseph C. Waddell, Nivaldo M. Piorsky, Richard P. Vari & Wolmar B. Wosiacki |
Cette illustration est une tradition et version graphiquement légèrement modifiée d'une illustration parue dans un articles publié en licence ouverte cc-by-sa 4.0 : original authors = C. David de Santana, William G. R. Crampton, Casey B. Dillman, Renata G. Frederico, Mark H. Sabaj, Raphaël Covain, Jonathan Ready, Jansen Zuanon, Renildo R. de Oliveira, Raimundo N. Mendes-Júnior, Douglas A. Bastos, Tulio F. Teixeira, Jan Mol, Willian Ohara, Natália Castro e Castro, Luiz A. Peixoto, Cleusa Nagamachi, Leandro Sousa, Luciano F. A. Montag, Frank Ribeiro, Joseph C. Waddell, Nivaldo M. Piorsky, Richard P. Vari & Wolmar B. Wosiacki ; URL = https://www.nature.com/articles/s41467-019-11690-z https://doi.org/10.1038/s41467-019-11690-z
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