Ringed soma-acestridiums [1] ( Latin Acestridium ) is a genus of ray-finned fish from the family of chainmail catfish .
| Chain Som Acestridiums |
Acestridium discus |
| Scientific classification |
|---|
| No rank : | Bilateral symmetric |
| Subfamily : | Hypoptopomatinae |
| Rod: | Chain Som Acestridiums |
|
| International Scientific Name |
|---|
Acestridium Haseman , 1911 |
|
Content
The total length of representatives of this genus ranges from 4.9 to 7 cm. They have a certain similarity with soms of the genus Farlowella . The head is strongly flattened from the sides and from above, extended, the end of the snout is rounded or oval. The eyes are tiny, the mouth is moderately wide. The body is extended behind the head. All fins are small in size. The dorsal fin has 7-8 soft rays, anal - 4-6. Pectoral fins thick, with jagged rays. Most types of belly have no bony plates, except for Acestridium triplax . Adipose fin absent.
The color is green or brown with different shades [2] .
These are bottom fish . There are no more than a meter deep in shallow forest streams, with clear or slightly muddy water and moderate current. Prefer sandy bottom, without vegetation, which should grow near the coast. They feed on small benthic organisms [3] .
They live in the basins of the Orinoco rivers (tributary Iniridu), Rio Negro , Madeira and Tapazhos within Colombia , Venezuela and Brazil [2] .
As of April 2018, 7 species are included in the genus [4] :
- Acestridium colombiense Retzer, 2005
- Acestridium dichromum Retzer, Nico & Provenzano, 1999
- Acestridium discus Haseman, 1911 - Discoid mail catfish
- Acestridium gymnogaster Reis & Lehmann-A., 2009
- Acestridium martini Retzer, Nico & Provenzano, 1999
- Acestridium scutatum Reis & Lehmann-A., 2009
- Acestridium triplax Rodriguez & Reis, 2007
- ↑ Reshetnikov Yu. S. , Kotlyar A. N. , Russ T. S. , Shatunovsky M. I. Pyatiazychny dictionary of animal names. Fish. Latin, Russian, English, German, French. / edited by Acad. V.E. Sokolova . - M .: Rus. laz., 1989. - p. 172. - 12 500 copies. - ISBN 5-200-00237-0 .
- 2 1 2 Retzer, Michael E. Description of a new species of Acestridium (Siluriformes: Loricariidae) from Colombia (Eng.) // Zootaxa : journal. - 2005. - Vol. 972 . - P. 1-6 .
- ↑ MF Catarino, AL Val. Bottles of the Amazon (eng.) : Journal.
- ↑ Acestridium (English) in FishBase database.
- Rodriguez MS and Reis RE 2007. A new species of Acestridium Haseman, 1911 (Loricariidae: Hypoptopomatinae) from the Eastern Amazon Basin, Brazil. Neotrop. Ichthyol. 5 (4): 429-434.
