Key of Identification of Dwarf-crenicichla - Crenicichla regani

Crenicichla - 3rd RIVER MADEIRA

1 "- Absence of a dark spot on the posterior extremity of the operculum ...... 3

3 "- Arrangement of the" American "type of lips, that is, the skin of the tooth is folded over that of the posterior end of the premaxilla ................................. 6

6 "- More than a series of teeth in the jaws, all moving (depressible) teeth ... 7

7 "- First branchial arch with short and less numerous traces (40 or less traces) ............................................................................................................................... 9

9 "- Scales of the lateral line with a sensorial channel .................................. 11

11 "- Absence of a well developed lobe in the first branchial arch .............. 19

19 '- Forty or more scales in series E1 ............................................................. 20

20 "- Body low and compressed or cylindrical; three spines in the anal fin ............................................................................... Genus Crenicichla

Crenicichla regani - 3rd RIO MADEIRA

1 "- less than 70 scales in the E1 series ........................................................... 7

7 "- Body compressed laterally; head compressed laterally; relatively short and slightly convex interorbital area ................................................................ 9

9 '- Absent humeral spot ........................................................
Crenicichla regani

CRENICICHLA WALLACII GROUP

The species of Crenicichla wallacii group are usually small. The largest known specimen is 87 mm SL (C. cinderella) . Humeral blotch, suborbital blotch and a preorbital stripe are absent. An elliptical black blotch is presente just posterior to the orbit. A second elliptical black blotch is presente on the operculum. Both blotches are elongated in horizontal direction. Most species have a spinous or lobed dorsal edge of the supracleithrum.

The maxillae do not reach the level of the orbit. The lower jaw is nor or  slighdy prognathous. Five species, hitherto assigned to a separate genus Teleocichla by Kullander (1988), are assigned to this group, which now consists of 12 species. The synonymy of Teleocichia with Crenicichla is discussed.

Key to the species o the wallacii group Morphometric and meristic ranges are based on 95% confidence limits or averages and are not absolute valões.

Crenicichla regani  Ploeg, 1989

The pike cichlids wild leaves (Crenicichla regani) are found in the Amazon in lakes or places of flooded forest with little current, hidden between branches and leaves.

In nature, these small predators feed on insects, larvae, aviums and small fish. In the aquarium, they eat ration and frozen for carnivores, but they love crushed shrimps and live foods.

This species of pike cichlid presents sexual dimorphism, where the females are smaller and contain in the dorsal fins one or more ocelli; since the males are bigger, their fins have no ocelli and are more pointed.

The pike cichlids wild leaves are very aggressive among themselves and with small or slow fish. It is advisable to keep only one couple per aquarium and add to them only larger fish.

During the breeding period, the couple becomes more colorful and aggressive, does the ritual of the court, puts eggs in a cavity of wood or stone that hatch after approximately 3 days.

The aquarium used by the couple of pike cichlids wild leaves must have more than a meter, own trunk, stones, floating plants or places that provide shelter, as these fish prefer to hide and do not like intense light
s.

Crenicichla regani  Ploeg, 1989

According to FISHBASE:

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

Distribution Countries: South America: Amazon basin, Trombetas river, Cachoeira da Porteira, Brazil.

Size - Maximum length: 7.9 cm

Common name of
Crenicichla regani: jacundá folha, joana-gensa, peixe-sabão, joaninha, jacundá (Brasil); dwarf-crenicichla (EUA)

Reference:

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

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)

Ito, P.M.M. and L.H.R. Py-Daniel, 2015. A small new species of Crenicichla Heckel, 1840 from middle rio Xingu, Brazil (Teleostei: Cichlidae). Neotrop. Ichthyol. 13(3):471-478.

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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