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''Polypterus endlicherii'', the saddled bichir, is one of the largest species of the ''
Polypterus ''Polypterus'' is a genus of freshwater fish in the bichir family ( Polypteridae) of order Polypteriformes. The type species is the Nile bichir (''P. bichir''). Fish in this genus live in various areas in Africa. ''Polypterus'' is the only kno ...
''
genus Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In bino ...
of
freshwater fish Freshwater fish are fish species that spend some or all of their lives in bodies of fresh water such as rivers, lakes, ponds and inland wetlands, where the salinity is less than 1.05%. These environments differ from marine habitats in many wa ...
. Named in honor of botanist
Stephan Endlicher Stephan Friedrich Ladislaus Endlicher, also known as Endlicher István László (24 June 1804 – 28 March 1849), was an Austrian Empire, Austrian botanist, numismatist and Sinologist. He was a director of the Botanical Garden of Vienna. Biog ...
(1804–1849), who apparently discovered the species in the fish collection at the Naturhistorisches Museum (Vienna).


Description

The species reaches a maximum recorded length of about as an unsexed male. The maximum recorded weight was about . It can be identified by its flattened head with a prominent lower jaw that is larger than its upper jaw. Its dorsal side is of a green and yellow color. Its head and fins also have black spots on them. This fish is recorded to be
piscivorous A piscivore () is a carnivorous animal that primarily eats fish. Fish were the diet of early tetrapod evolution (via water-bound amphibians during the Devonian period); insectivory came next; then in time, the more terrestrially adapted rept ...
. Their diet also includes snails and crustaceans. Their reproduction cycle begins in the rainy season when the chemistry of the water and temperature change. This species is also known to be an egg scatterer. ''P. endlicherii'' can live in aquaria with proper maintenance.


Habitat and distribution

''Polypterus endlicherii'' is recorded to be found in freshwater habitats within
demersal The demersal zone is the part of the sea or ocean (or deep lake) consisting of the part of the water column near to (and significantly affected by) the seabed and the benthos. The demersal zone is just above the benthic zone and forms a layer o ...
depth ranges. This species is native to a tropical climate. ''Polypterus endlicherii'' is found in the
Nile River The Nile (also known as the Nile River or River Nile) is a major north-flowing river in northeastern Africa. It flows into the Mediterranean Sea. The Nile is the longest river in Africa. It has historically been considered the longest river i ...
, the
Chad Basin The Chad Basin is the largest endorheic basin in Africa, centered approximately on Lake Chad. It has no outlet to the sea and contains large areas of semi-arid desert and savanna. The drainage basin is approximately coterminous with the sedimenta ...
, the
Niger River The Niger River ( ; ) is the main river of West Africa, extending about . Its drainage basin is in area. Its source is in the Guinea Highlands in south-eastern Guinea near the Sierra Leone border. It runs in a crescent shape through Mali, Nige ...
, the
Volta River The Volta River (, , ) is the main Drainage system (geomorphology), river system in the West African country of Ghana. It flows south into Ghana from the Bobo-Dioulasso Department, Bobo-Dioulasso highlands of Burkina Faso. The three main part ...
, and the Bandama River of Africa. This species is native to
Cameroon Cameroon, officially the Republic of Cameroon, is a country in Central Africa. It shares boundaries with Nigeria to the west and north, Chad to the northeast, the Central African Republic to the east, and Equatorial Guinea, Gabon, and the R ...
,
Nigeria Nigeria, officially the Federal Republic of Nigeria, is a country in West Africa. It is situated between the Sahel to the north and the Gulf of Guinea in the Atlantic Ocean to the south. It covers an area of . With Demographics of Nigeria, ...
,
Burkina Faso Burkina Faso is a landlocked country in West Africa, bordered by Mali to the northwest, Niger to the northeast, Benin to the southeast, Togo and Ghana to the south, and Ivory Coast to the southwest. It covers an area of 274,223 km2 (105,87 ...
,
Ghana Ghana, officially the Republic of Ghana, is a country in West Africa. It is situated along the Gulf of Guinea and the Atlantic Ocean to the south, and shares borders with Côte d’Ivoire to the west, Burkina Faso to the north, and Togo to t ...
,
Chad Chad, officially the Republic of Chad, is a landlocked country at the crossroads of North Africa, North and Central Africa. It is bordered by Libya to Chad–Libya border, the north, Sudan to Chad–Sudan border, the east, the Central Afric ...
, the
Ivory Coast Ivory Coast, also known as Côte d'Ivoire and officially the Republic of Côte d'Ivoire, is a country on the southern coast of West Africa. Its capital city of Yamoussoukro is located in the centre of the country, while its largest List of ci ...
,
Mali Mali, officially the Republic of Mali, is a landlocked country in West Africa. It is the List of African countries by area, eighth-largest country in Africa, with an area of over . The country is bordered to the north by Algeria, to the east b ...
,
Sudan Sudan, officially the Republic of the Sudan, is a country in Northeast Africa. It borders the Central African Republic to the southwest, Chad to the west, Libya to the northwest, Egypt to the north, the Red Sea to the east, Eritrea and Ethiopi ...
,
Benin Benin, officially the Republic of Benin, is a country in West Africa. It was formerly known as Dahomey. It is bordered by Togo to the west, Nigeria to the east, Burkina Faso to the north-west, and Niger to the north-east. The majority of its po ...
, and the
Central African Republic The Central African Republic (CAR) is a landlocked country in Central Africa. It is bordered by Chad to Central African Republic–Chad border, the north, Sudan to Central African Republic–Sudan border, the northeast, South Sudan to Central ...
.


See also

*
List of freshwater aquarium fish species A vast number of freshwater species have successfully adapted to live in aquariums. This list gives some examples of the most common species found in home aquariums. Siluriformes, Catfish Characiformes, Characoids Cichl ...


References

Polypteridae Taxa named by Johann Jakob Heckel Fish described in 1847 {{chondrostei-stub