🐈‍⬛ Worlds largest freshwater fish...Pirarucu, Giant Arapaima - Observed in 'Description'

🐈‍⬛ Worlds largest freshwater fish...Identify the Fish

¤ (Arapaima gigas) Pirarucu, Giant Arapaima, Arapaima in Family (Arapaimidae) native to basin of Amazon River.

Is an obligate air breather, so it needs to come to surface regularly to breathe air. Among largest known freshwater fish, 200 cm. & reportedly exceptionally reaching lengths of up to 450 cm.

Adults may weigh up to 200 kg. Has a streamlined body with dorsal & anal fins set well back towards tail.

While body is mainly gray to gray-green.

Its Brazilian local name pirarucu derives from an indigenous word for 'red fish' thought to refer to either red flecks on scales towards tail or reddish-orange color of its meat.

Fish have flexible, armor-like scales made up of a hard, mineralized outer layer & a tough-but-flexible inner layer that help protect it from attacks by Piranhas.
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•¹ Family Arapaimidae (5), 2
▪︎ Genus Arapaima (4)
¤ (Arapaima agassizii)
¤ (Arapaima gigas) Pirarucu, Giant Arapaima, Arapaima
¤ (Arapaima leptosoma)
¤ (Arapaima mapae)
▪︎ Genus Heterotis (1)
¤ (Heterotis niloticus) African Arowana, African Bonytongue
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☆³¹ Order Osteoglossiformes (253), 32 Genera - Bony Tongues
•¹ Family Arapaimidae (5), 2
•² Family Gymnarchidae (1), 1
•³ Family Hiodontidae (2), 1 - Mooneyes
•⁴ Family Mormyridae (228), 21 - Mormyrids, Elephant Fishes
•⁵ Family Notopteridae (10), 4 - Knifefishes, Featherfin Knifefishes, Featherbacks
•⁶ Family Osteoglossidae (6), 2 - Bonytongues, Bandfishes
•⁷ Family Pantodontidae (1), 1 - Butterflyfish
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♤ Class Actinopterygii (32,513) - Ray-finned Fish 🐠 🐡 🐟
☆⁰¹ Order Acipenseriformes (27) - Sturgeons, Paddlefishes
☆⁰² Order Albuliformes (13) - Bonefishes
☆⁰³ Order Amiiformes (1) - Bowfins
☆⁰⁴ Order Anguilliformes (918) - Eels
☆⁰⁵ Order Ateleopodiformes (13) - Jellynose Fishes, Tadpole Fishes
☆⁰⁶ Order Atheriniformes (355) - Silversides
☆⁰⁷ Order Aulopiformes (264) - Grinners, Lizardfishes
☆⁰⁸ Order Batrachoidiformes (83) - Toadfish, Frogfish
☆⁰⁹ Order Beloniformes (271) - Ricefish, Medakas, Needlefish, Flyingfishes, Halfbeaks, Sauries
☆¹⁰ Order Beryciformes (163) - Alfonsinos, Squirrelfishes, Flashlight Fishes, Fangtooth Fishes, Spinyfins, Pineconefishes, Redfishes, Roughies, Slimeheads
☆¹¹ Order Cetomimiformes (33) - Whalefishes
☆¹² Order Characiformes (2,143) - Characins
☆¹³ Order Clupeiformes (395) - Herrings, Sprats, Anchovy
☆¹⁴ Order Cypriniformes (4,418) - Barbs, Gobies, Loaches, Botias, Minnows
☆¹⁵ Order Cyprinodontiformes (1,306) - Toothcarps
☆¹⁶ Order Elopiformes (9) - Tarpons, Tenpounders, Ladyfish
☆¹⁷ Order Esociformes (14) - Pikes, Mudminnows
☆¹⁸ Order Gadiformes (618) - Cods
☆¹⁹ Order Gasterosteiformes (29) - Sticklebacks
☆²⁰ Order Gobiesociformes (167) - Clingfishes
☆²¹ Order Gonorynchiformes (37) - Milkfish, Beaked Salmons, Shellears, Hingemouths
☆²² Order Gymnotiformes (234) - Neotropical Knifefish
☆²³ Order Lampriformes (23) - Sailfin Moonfishes, Opahs, Crestfishes, Tapertail, Ribbonfishes, Oarfish
☆²⁴ Order Lepisosteiformes (7) - Gar
☆²⁵ Order Lophiiformes (259) - Anglerfish
☆²⁶ Order Mugiliformes (78) - Mullet
☆²⁷ Order Myctophiformes (254) - Lanternfish
☆²⁸ Order Notacanthiformes (28) - Spiny Eel
☆²⁹ Order Ophidiiformes (532) - Cusk-eels, Pearlfishes, Viviparous Brotulas
☆³⁰ Order Osmeriformes (326) - True or Freshwater Smelts
☆³¹ Order Osteoglossiformes (253) - Bony Tongues
☆³² Order Perciformes (11,248) - Perch-like fishes
☆³³ Order Percopsiformes (10) - Trout-perches
☆³³ Order Pleuronectiformes (784) - Flatfish
☆³⁵ Order Polymixiiformes (10) - Beardfishes
☆³⁶ Order Polypteriformes (24) - Bichir
☆³⁷ Order Saccopharyngiformes (28) - Gulper Eels
☆³⁸ Order Salmoniformes (225) - Salmonids
☆³⁹ Order Scorpaeniformes (1,641) - Mail-cheeked Fishes
☆⁴⁰ Order Siluriformes (3,781) - Catfish
☆⁴¹ Order Stephanoberyciformes (70) - Whalefishes, Bigscale Fishes
☆⁴² Order Stomiiformes (415) - Dragonfishes, Lightfishes, Loosejaws, Marine Hatchetfishes, Viperfishes
☆⁴³ Order Synbranchiformes (120) - Swamp Eels
☆⁴⁴ Order Syngnathiformes (323) - Pipefishes
☆⁴⁵ Order Tetraodontiformes (439) - Pufferfishes, Triggerfishes, Boxfishes, Filefishes, Ocean Sunfishes
☆⁴⁶ Order Zeiformes (33) - Dories
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Fishes -
■ Jawless Fish
■ Jawed Vertebrates...
▪︎¹ Cartilaginous Fishes
▪︎² Bony Fish = 'Tetrapods 🤯' + Ray-finned Fish + Lobe-finned Fish + Lungfish
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□ Subphylum Vertebrata (70,897) - Vertebrate

◇¹ Infraphylum Agnatha (129) - Jawless Fish

◇² Infraphylum Gnathostomata (29,578) - Jawed Vertebrates

♡¹ Parvphylum Chondrichthyes (1,282) - Cartilaginous Fishes
♤¹ Class Elasmobranchii (1,226) - Cartilaginous Fish 🦈
♤² Class Holocephali (56) - Chimaeras

♡² Parvphylum Osteichthyes (69,486) Bony Fish, including Tetrapods
♧¹ Megaclass Tetrapoda (36,965) - Tetrapods
♧² Megaclass Not assigned
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