Myloplus nigrolineatus

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Myloplus nigrolineatus
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Characiformes
Family: Serrasalmidae
Genus: Myloplus
Species:
M. nigrolineatus
Binomial name
Myloplus nigrolineatus

Myloplus nigrolineatus is a species of freshwater fish in the serrasalmid

family (family Serrasalmidae) of order Characiformes. It is native to the Amazon River basin in South America
.

Description

Like other members of the serrasalmid family, Myloplus nigrolineatus is characterized by a deep,

caudal fin has equal sized lobes.[1]

Taxonomy

Classification

Myloplus nigrolineatus is primarily distinguished from its

cogeners by the black row of lateral line scales for which it is named. The intensity of this coloration can vary depending on which river within the Amazon basin a population occupies. Additional morphological characteristics that differentiate M. nigrolineatus from other members of its genus include the presence of 25 to 29 branched rays in the dorsal fin, and a greater number of lateral line scales (98-120 vs. fewer than 98 in other species).[1]

Etymology

The generic name Myloplus comes from the Greek word mylos meaning grey mullet, and ploos meaning movement of a serpent.[2] The specific name nigrolineatus, and references the Latin word nigro meaning black, and lineatus meaning lined, and is derived from the dark colored lateral line characteristic of the species.[1]

Distribution and habitat

Myloplus nigrolineatus is widely distributed throughout the Amazon basin, where it inhabits slow-flowing backwaters and lakes. Specimens have been recorded from the

Tapajós, Tocantins, Jutaí, Maués-Açu, and Uatumã rivers, as well as Pauapixuna lake (Juruá River), Tapauá lake (Purus River), Serpa lake (Amazon River), Tracajá lake, and the Negro river basin.[1]

Despite the broad geographic range, this species is restricted to two specific habitat types. It requires either clear waters with very low levels of suspended sediments, or low ph and low sediment load blackwater habitats.[1]

Diet

This species is

aquatic plants
.

References

  1. ^ .
  2. ^ Froese, Rainer and Pauly, Daniel, eds. (2020). Species of Myloplus in FishBase. April 2020 version.