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> Cichliformes (Cichlids, convict blennies) > Cichlidae (Cichlids) > Ptychochrominae
Etymology: Ptychochromis: Greek, ptyx, = fold + Greek, chromis = a fish, perhaps a perch (Ref. 45335); onilahy: Named after the basin in which the types were collected (Ref. 57663).

Environment: milieu / climate zone / depth range / distribution range Ecología

; agua dulce demersal. Tropical

Distribución Países | Áreas FAO | Ecosistemas | Ocurrencias, apariciones | Point map | Introducciones | Faunafri

Africa: Madagascar.

Tamaño / Peso / Age

Maturity: L_m ? range ? - ? cm
Max length : 8.6 cm SL macho / no sexado; (Ref. 57663)

Short description Claves de identificación | Morfología | Morfometría

Espinas dorsales (total) : 13; Radios blandos dorsales (total) : 12; Espinas anales: 3; Radios blandos anales: 8 - 9; Vértebra: 26 - 27. It is distinguished from all congeners by the presence of a lachrymal plate that extends ventrally to cover a portion of the upper lip (Ref. 57663). Body deep and laterally compressed (Ref. 57663). Two inner rows of teeth in both upper and lower jaws (Ref. 57663). It has cycloid scales above the upper lateral line on the flanks (Ref. 57663). In life, adults are uniformly gray brown, paler ventrally and lacking any obvious body markings (Ref. 57663). In preservative, the ground coloration is brownish to golden-brown, lighter ventrally, and all fins are brownish (Ref. 57663).

Life cycle and mating behavior Maturities | Reproducción | Spawnings | Egg(s) | Fecundities | Larva

Main reference Upload your references | Referencias | Coordinador : Kullander, Sven O. | Colaboradores

Stiassny, M.L.J. and J.S. Sparks, 2006. Phylogeny and taxonomic revision of the endemic Malagasy genus Ptychochromis (Teleostei: Cichlidae), with the description of five new species and a diagnosis for Katria, new genus. Am. Mus. Novit. 3535:1-55. (Ref. 57663)

IUCN Red List Status (Ref. 130435)

Extinct (EX) ; Date assessed: 15 May 2016

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

FAO - Publication: search | FishSource |

Más información

Trophic ecology
componentes alimenticios
Diet compositions
Food consumptions
Food rations
Despredadores

Ecology
Ecología

Population dynamics
Growths
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversions
Recruitments
Abundances

Life cycle
Reproducción
Maturities
Fecundities
Spawnings
Spawning aggregations
Egg(s)
Egg developments
Larva
Dinámica larvaria

Distribution
Países
Áreas FAO
Ecosistemas
Ocurrencias, apariciones
Introducciones
BRUVS - Videos

Anatomy
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Cerebros
Otolitos

Physiology
Body compositions
Nutrients
Oxygen consumptions
Tipo de natación
Swimming speeds
Visual pigment(s)
Sonidos de peces
Diseases / Parasites
Toxicities (LC50s)

Genetics
Genética
Electrophoreses
Heritabilities

Human related
Aquaculture systems
Perfiles de acuicultura
Razas
Ciguatera cases
Stamps, coins, misc.

Outreach
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Taxonomy
Nombres comunes
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References
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Check for Aquarium maintenance | Check for Species Fact Sheets | Check for Aquaculture Fact Sheets

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Summary page | Datos específicos | Nombres comunes | Photos

Fuentes de Internet

Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5010 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.01995 (0.00906 - 0.04395), b=3.01 (2.83 - 3.19), in cm total length, based on all LWR estimates for this body shape (Ref. 93245).

Nivel trófico (Ref. 69278): 3.3 ±0.3 se; based on size and trophs of closest relatives

Resiliencia (Ref. 120179): Alto, población duplicada en un tiempo mínimo inferior a 15 meses (Preliminary K or Fecundity.).

Fishing Vulnerability (Ref. 59153): Low vulnerability (10 of 100).

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Ptychochromis onilahy Stiassny & Sparks, 2006