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Description of a new Acaronia species (Teleostei, Cichlidae) from the Rio Orinoco and Rio Negro drainages

1989; Wiley; Volume: 18; Issue: 3 Linguagem: Inglês

10.1111/j.1463-6409.1989.tb00139.x

1463-6409

S. Kullander,

Fish Ecology and Management Studies

Acaronia vultuosa sp.n. occurs in the Rio Orinoco and upper Rio Negro drainages. In the Rio Negro it overlaps slightly the range of its only congener, A. nassa (Heckel), from which it can be distinguished by (1) the lack of microbranchiospines on the first gill arch, (2) thc separate instead of coalesced anterior gill rakers on the first gill arch, and (3) the colour pattern, which includes a much larger midlateral blotch and a different pattern of dark markings on the head.