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As with all members of the genus, H. tatauaia has a laterally compressed body. The greatest body depth occurs between the pectoral and pelvic fins. It's slightly concave head profile and curved predorsal body gives it a humped appearance. In life, H. tatauaia has distinct reddish-orange coloration on its tail.
Photo from Toledo-Piza, 1999 (see below)
ID Key: Silvery, elongate body.
| Bars and Markings | Colors | Size | Key Characters | Similar Species |
|---|---|---|---|---|
| Dark elongate blotch behind opercule. Reddish-orange caudal fin. | Silvery body, darker along dorsal portion of head and body. | Adults: museum specimens up to almost 1/2 meter (18 inches). | 102 - 119 lateral line scales |
Hydrolycus armatus |
| Known Range | Behavior Notes | Habitat | Common Names | IGFA records |
|---|---|---|---|---|
| Countries: Brazil, Peru, Columbia, Guyana, Venezuela. River Basins: Amazon, Madeira, Tapajos, Negro, Branco, Xingu, Orinoco, Essequibo and Rupununi drainages. |
If you have information. please contact us: | If you have information. please contact us: | The scientific name is from the Tupi word meaning "fire tail". |
If you have information. please contact us:
Toledo-Piza, M. 2003. Cynodontidae (Cynodotids). p. 234-237. In: R.E. Reis, S.O. Kullander and C.J. Ferraris, Jr. (eds.) Checklist of the Freshwater Fishes of South and Central America. Porto Alegre: EDIPUCRS, Brasil.
Toledo-Piza, M., N.A. Menezes and G.M. Santos. 1999. Revision of the Neotropical fish genus Hydrolycus (Ostariophysi: Characiformes: Cynodontidae) with the description of two new species. Ichthyol. Explor. Freshwaters, 10 (3): 255-280
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