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Saddled Bichir

Polypterus endlicherii Heckel 1847

Diagnostic Description

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Diagnosis: lower jaw longer than upper jaw; pectoral fin reaching first dorsal ray (Ref. 2835, 42908, 81263). 11-14 dorsal finlets (Ref. 28714, 122071), the first situated above the pectoral fins; head flat or slightly concave between the eyes but not convex (Ref. 28714). Third dorsal scale row the first to reach ventral midline; predorsal length short, 21.7-27.4 % SL; few (4-5, rarely 6), broad (more than 3 scale rows wide), dark transverse bars extending from dorsum to middle of flank by confluence of dorsal and lateral blotches sometimes including ventrolateral markings (Ref. 122071).Description: Body dorso-ventrally depressed, non subcylindrical, the height of which is comprised 7.1-9.1 times in body length and head length 4.1-5.5 times (Ref. 367, 2756, 2835, 42908, 81263). Head flattened, 1.3-1.7 times longer than broad; lower jaw longer than upper jaw; eye diameter 9.4-13 times in head length (Ref. 367, 2756, 2835, 81263). Dorsal fin with 11-14 rays followed by 20-26 dorsal and caudal articulated rays; anal fin with 15-18 rays; pectoral fin rounded getting behind the level of the first dorsal ray (Ref. 2835, 81263). Scales ganoid (Ref. 42904), 50-60 in lateral line, 39-48 around the body, 11-16 predorsal scales (Ref. 367, 2835, 42908, 81263, 122071), 39-45 prepelvic scales. Lateral line scales grooved with a posterior notched border (Ref. 367, 2835, 42908, 81263).Coloration: In alcohol, body yellowish or greenish on the upper parts, belly clearer, sides with characteristic and irregular vertical black bands; head and fins spotted with black (Ref. 2835, 3069, 81263).
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Migration

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Potamodromous. Migrating within streams, migratory in rivers, e.g. Saliminus, Moxostoma, Labeo. Migrations should be cyclical and predictable and cover more than 100 km.
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Recorder
Crispina B. Binohlan
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Morphology

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Dorsal spines (total): 1114; Analspines: 0; Analsoft rays: 9 - 18; Vertebrae: 53 - 57
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Trophic Strategy

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Inhabits swamps and rivers. Polypterus endlicheri is essentially piscivorous (Ref. 9695, Ref. 28714). Diet includes snails and crustaceans (Ref.30488).
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Recorder
Drina Sta. Iglesia
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Biology

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Inhabits swamps and rivers. Essentially piscivorous (Ref. 9695, 28714). Diet includes snails and crustaceans (Ref. 30488).
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Crispina B. Binohlan
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Importance

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fisheries: minor commercial
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Polypterus endlicheri

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Polypterus endlicherii - MHNT

Polypterus endlicheri Heckel 1847, the saddled bichir, is one of the largest species of the Polypterus genus of freshwater fish.

Named in honor of botanist Stephan Endlicher (1804-1849), who apparently discovered the species in the fish collection at the Naturhistorisches Museum (Vienna).[3]

Description

The species reaches a maximum recorded length of about 63 cm (24.8 in) as an unsexed male. The maximum recorded weight was about 3.3 kg (7.3 lb).[4][5] 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.[4]

This fish is recorded to be piscivorous. Their diet also includes snails and crustaceans.[4] 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. endlicheri can live in aquaria with proper maintenance.[6]

Habitat and distribution

Polypterus endlicheri is recorded to be found in freshwater habitats within demersal depth ranges. This species is native to a tropical climate.[4]

P. endlicheri is found in the Nile River, the Chad Basin, the Niger River, the Volta River, and the Bandama River of Africa.[4] This species is native to Cameroon, Nigeria, Burkina Faso, Ghana, Chad, the Ivory Coast, Mali, Sudan, Benin, and the Central African Republic.[6]

See also

References

  1. ^ Froese, R.; Pauly, D. (2017). "Polypteridae". FishBase version (02/2017). Retrieved 18 May 2017.
  2. ^ Van Der Laan, Richard; Eschmeyer, William N.; Fricke, Ronald (11 November 2014). "Family-group names of Recent fishes". Zootaxa. 3882 (1): 1–230. doi:10.11646/zootaxa.3882.1.1. PMID 25543675.
  3. ^ Christopher Scharpf & Kenneth J. Lazara (22 September 2018). "Order POLYPTERIFORMES (Bichirs)". The ETYFish Project Fish Name Etymology Database. Christopher Scharpf and Kenneth J. Lazara. Retrieved 28 February 2021.
  4. ^ a b c d e "Polypterus endlicherii Heckel, 1847 Saddled bichir". Fish Base. Retrieved 10 September 2013.
  5. ^ "Saddled Bichir – Polypterus Endlicheri Endlicheri". Tropical Fish Site. Retrieved 10 September 2013.
  6. ^ a b "Polypterus endlicheri endlicheri Saddled Bichir". Seriously Fish. Retrieved 10 September 2013.

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Polypterus endlicheri: Brief Summary

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Polypterus endlicherii - MHNT

Polypterus endlicheri Heckel 1847, the saddled bichir, is one of the largest species of the Polypterus genus of freshwater fish.

Named in honor of botanist Stephan Endlicher (1804-1849), who apparently discovered the species in the fish collection at the Naturhistorisches Museum (Vienna).

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