Ancistrus
| Ancistrus | |
|---|---|
.jpg) |
|
| Ancistrus sp. | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | Siluriformes |
| Family: | Loricariidae |
| Subfamily: | Hypostominae |
| Genus: |
Ancistrus Kner, 1854 |
| Type species | |
|
Hypostomus cirrhosus Valenciennes, 1836 |
|
| Synonyms | |
|
Pristiancistrus Fowler, 1945 |
|
Pristiancistrus Fowler, 1945
Thysanocara Regan, 1906
Xenocara Regan, 1904
Ancistrus is a genus of freshwater fish in the family Loricariidae of order Siluriformes, native to South America and Panama. Fish of this genus are commonly known as the bushynose or incorrectly as bristlenose plecos as Plecostomus is a different family of catfish.
The type species is Ancistrus cirrhosus. This genus is the largest genus within the tribe Ancistrini.
The name ancistrus derives from the Ancient Greek agkistron "hook" – a reference to the form of the cheek odontodes. The genera Pristiancistrus, Thysanocara and Xenocara are now synonyms of Ancistrus.
Ancistrus species show all the typical features of the Loricariidae. This includes a body covered in bony plates and a ventral suckermouth. The feature most commonly associated with the genus are the fleshy tentacles found on the head in adult males; females may possess tentacles along the snout margin but they are smaller and they lack tentacles on the head.Tentacules, tentacles directly associated with odontodes, develop on the pectoral fin spine of the males of some species. Males also have evertible cheek odontodes which are less developed or absent in females. They also lack odontodes along the snout. In comparison with a typical loricariid (pleco), a bristlenose is typically shorter (4–6 inches or 15 cm or less), more flattened and fatter with a comparatively wider head. Colouration is typically mottled brown, grey or black. Small white or yellow spots are common. Unlike other loricariids which commonly grow to over a foot long, the bristlenose pleco may only grow to half the size, this makes it a suitable species for the smaller tank.
...
Wikipedia