Key of Identification of Marbled-pikecichlid - Crenicichla marmorata

Crenicichla marmorata - 3rd RIO MADEIRA

1 '- More than 80 scales in series E1 (series of scales immediately dorsal to those containing the lower lateral line) .................................... 2

2 "- Head, regions anterior to the dorsal (pre-dorsal) and pelvic (pre-pelvic) fins covered by cycloid scales, but flanks covered by ctenoid scales; presence of a dark spot at the base of the caudal fin .............. 3

3 "- Adults without bands on the flanks, juveniles may present weakly pigmented vertical bands ............................................................ 4

4 '- Pre- and post-orbital stripes narrower than pupil width; irregular-shaped caudal spot .................................................................................... 5

5 "- Dark irregular spots alternating with clear spaces on the back ................................................................. Crenicichla marmorata

CRENICICHLA LUGUBRIS GROUP

The Crenicichla lugubris group consists o the largest species in the genus, up to 300mm SL. The number scales is high (more than 82, versus fewer than 80 in all other Crenicichla species), as is the number scales in the lateral lines, the number o dorsal spines and especially the number of branched dorsal in rays. The latter characters, however, are not unique within the genus, and not all are present in each member of this group. Some o the members have a black or dark dots on the head.
Such dots are presente in juveniles (up to 120 mm) o some closely related species in this group, and in two species also in larges specimens.
Key to the species of the lugubris group Morphometric and meristic ranges are based on 95% conidence limits or averages and are not absolute values.

Crenicichla marmorata  Pellegrin, 1904

According to FISHBASE:

Kingdom = Animalia; Filo = Chordata; Class = Actinopterygii; Order = Perciformes; Family = Cichlidae; Genus = Crenicichla

Distribution Countries: South America: basin of the Amazon River, in the southern tributaries of the Amazon River in Brazil, the Madeira River to the Tocantins River.

Size - Maximum length: 28,0 cm

Common name of
Crenicichla marmorata: jacundá de mármore, joana-gensa, peixe-sabão, joaninha, jacundá (Brasil); Marbled-pikecichlid (EUA)

Reference:

FISHBASE = https://www.fishbase.de/summary/Crenicichla-marmorata

INSTRUÇÃO NORMATIVA INTERMINISTERIAL N°1, DE 3 DE JANEIRO DE 2012. Diário Oficial da União – Seção I, Nº3, quarta-feira, 4 de janeiro de 2012, páginas 26 a 42 – ISSN 1677-7042 INI MPA-MMA (n01-2012 - Peixes Ornamentais Continentais.pdf)

Kullander, S.O., 2003. Cichlidae (Cichlids). p. 605-654. In R.E. Reis, S.O. Kullander and C.J. Ferraris, Jr. (eds.) Checklist of the Freshwater Fishes of South and Central America. Porto Alegre: EDIPUCRS, Brasil.

Ploeg, A. 1991. Revision of the South American cichlid genus Crenicichla Heckel, 1840 with descriptions of fifteen new species and considerations on species groups, phylogeny and biogeography (Pisces, Perciformes, Cichlidae). Akademisch Proefschrift, Universiteit van Amsterdam, 152p.

Queiroz, L. J.; Vilara, G. T.; Ohara, W. M.; Pires, T. H. S.; Zuanon, J.; Doria, C. R. C. Peixes do Rio Madeira. São Paulo. Vol.3. 2013.

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