Saturday,24 October 2020, 10 : 42 PM

Oxylapia polli

A sapayensis
Oxylapia polli
Image Credit: Patrick De Rahm


Oxylapia polli Oxylapia polli is a medium sized fish and it is the only member of its genus.
It has a standard length of 4.8."
It is found in Marolambo Rapids, in Nosivolo River in east-central Madagascar.


(Click for details of Cichlid taxonomy)

Oxylapia polli Oxylapia polli was first described by Kiener & Maugé, in 1966. It is the only member of its genus.


Shape :-

Oxylapia polli reaches a length of about 5.1 " (SL). It is a highly aggressive species,having a elongate shape most suited to living in fast flowing river conditions.

Distribution & Habitat

Oxylapia polli is found in Marolambo Rapids, in Nosivolo River in east-central Madagascar.
Nosivolo river is the tributery of Mangoro river which is the largest river in Eastern slope of Madagascar.

Conservation Status & Threats

IUCN Red list shows status of Oxylapia polli as "Critically endangered ".
This species was earlier listed as "Vulnerable", subsequently improved information available has resulted in species being uplifted to "Critically Endangered.
Although the species is abundant in its habitat, but it is restricted to only one location. The extent of occurrence is restricted to less than 100 sq km.
Deforestation are threatening this location and hence it has been classified as "Critically Endangered.

Tank Size and setup:

Not much information is available on its upkeep in aquariums.

Species Snapshot

Species Card

Particulars Details
Scientific Name Oxylapia polli
Common Name songatana
Genus Oxylapia
Subfamily Ptychochrominae
Geographical Origin Africa: Madagascar.
Gender Differences
Temperament Highly aggessive
Con Specific Temperament Highly aggessive
Water hardness
Difficulty Level in Aquariums 5

Morphometric Data

Particulars Details
Total Length(inches)
Standard Length(inches)

Measurements as % of Total Length

Particulars Details
Body Depth  %
Head length  %
Pre Dorsal length  %
Pre Pectoral length  %
Pre Anal length  %
Pre Pelvic length  %
Caudal Peduncle Depth  %
Caudal Peduncle Length  %
Fork length  %
Length of Last Dorsal Fin Spine  %
Pectoral Fin Length  %
Pelvic Fin Length  %

Measurements as % of Head Length

Particulars Details
Head Width  %
Snout length  %
Eye diameter  %
Pre Orbital Length  %
Inter Orbital Width  %
Pre Orbital Depth  %

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