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Ornate Bichir

Polypterus ornatipinnis Boulenger 1902

Diagnostic Description

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Subcylindrical body (Ref. 27292, Ref. 36901). Upper and lower jaw of equal length (Ref. 36901, Ref. 42907). Number of dorsal finlets: 9-11 (Ref. 42908, Ref. 51884). Dorsal fin origin well behind pectoral fin (Ref. 4967, Ref. 42873). Ganoid scales (Ref. 27292, Ref. 42904): 58-65 lateral line scales, 38-44 scales around body, 22-27 predorsal scales (Ref. 2970, Ref. 11970, Ref. 42907, Ref. 42908). Dorsal side grey-brown colored, marbled with clear whitish spots (Ref. 11970), the belly is white to yellowish (Ref. 27292). Head finely reticulated (Ref. 42873, Ref. 42901). Fins with white spots alternating with dark spots, forming a continuous bar (Ref. 11970).
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Recorder
Pascualita Sa-a
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Life Cycle

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Male starts with the courtship and is the active partner (Ref. 1672). The male makes from the anal fin a sort of cup and the female lays the eggs in this cup (Ref. 1672). The male then spreads the eggs so that they attach, e.g., to plants.
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Tom Froese
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Morphology

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Dorsal spines (total): 911; Analspines: 1415
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Trophic Strategy

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Inhabits calmer waters of rivers (Ref. 11970). Feeds on worms and insect larvae when young, but takes larger food, mainly fish, when adult (Ref. 27292). It hunts mainly at night (Ref. 27292).
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Gert Boden
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Biology

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Inhabits calm waters of swamps and rivers (Ref. 11970). It feeds on worms and insect larvae when young, but takes larger food, mainly fish, when adult (Ref. 27292). It mainly hunts at night (Ref. 27292). In general they are more or less solitary fish and do not form schools (Ref. 27292).
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Rainer Froese
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Importance

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fisheries: of no interest; aquarium: public aquariums
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Polypterus ornatipinnis

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Polypterus ornatipinnis, the ornate bichir, is a bony fish found in Lake Tanganyika and the Congo River basin in Central and East Africa.

Description

P. ornatipinnis has black and yellow patterning on its body, head, and fins, with 9 to 11 dorsal spines. It is the largest of the "upper jaw bichirs",[2] and reaches 60 cm (24 in) in length.[3] (Other larger bichir species such as Polypterus congicus do not have a clearly protruding upper jaw.) This fish can range in colour from dark brown to brownish grey, and is very common in the aquarium trade, like many other bichirs. This fish has a primitive pair of lungs, enabling it to breathe air in hypoxic waters and even survive out of water for extended periods of time. It has eyes on the sides on its head and two pectoral fins, and is considered to be one of the more attractive of the bichirs.[4]

References

  1. ^ Hanssens, M.; Moelants, T. (2010). "Polypterus ornatipinnis". The IUCN Red List of Threatened Species. 2010: e.T182062A7807150. doi:10.2305/IUCN.UK.2010-3.RLTS.T182062A7807150.en.
  2. ^ a b Evans, Sean. "Polypterus ornatipinnis". Polypterus.info. Retrieved 2008-08-16.
  3. ^ Froese, Rainer; Pauly, Daniel (eds.) (2017). "Polypterus ornatipinnis" in FishBase. September 2017 version.
  4. ^ From the exhibit caption at the New England Aquarium, 2008.

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Polypterus ornatipinnis: Brief Summary

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Polypterus ornatipinnis, the ornate bichir, is a bony fish found in Lake Tanganyika and the Congo River basin in Central and East Africa.

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