Serrasalmus hollandi
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Serrasalmus hollandi |
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| Serrasalmus hollandi | ||||||||||||
| Eigenmann , 1915 |
Serrasalmus hollandi is a species of saw tetra from tropical South America . It occurs in the southern Amazon basin, in the river basin ofthe Rio Madeira and its tributaries, e.g. B. in the Rio Guaporé in Bolivia and Brazil . An occurrence in Guyana is uncertain. Eigenmann chosethe additional species hollandi for his friend William Jacob Holland , then director of the Carnegie Museum of Natural History .
description
The animals are a maximum of 18.5 centimeters long. The fish have a rhomboid body shape, a high compressed back with a dark shoulder mark. Their basic color is dark gray to olive green, white on the ventral side and dark spots above. Young animals are strongly spotted. Their fins are transparent when they are young. They can easily be confused with S. rhombeus juvenile fish. The caudal fin is V-shaped and has a hyaline color.
- Fin formula : dorsal ii / 14, anal iii / 29.
Way of life
Serrasalmus hollandi lives in tropical rivers with a water temperature of 20 to 25 ° C. The species is found preferentially in cloudy rivers that are loaded with high sediment loads and have their source in the Andes . Relatively little is known about their way of life.
Individual evidence
- ↑ a b Serrasalmus hollandi on Fishbase.org (English)
- ^ CH Eigenmann (1915): The Serrasalminae and Mylinae. In: Annals of the Carnegie Museum. Pp. 251-252. On-line
- ↑ a b c Wolfgang Schulte: Piranhas, interesting facts about biology, ecology, behavior, care and breeding and the different species , teacher library, Albrecht Philler Verlag, Minden, ISBN 3-7907-0080-0 , p. 81
- ^ Present-Day Species of Piranha Result from a Marine Incursion into the Amazonas Basin. In Biology News Net