#reedfish

[taxonomytournament]

Taxonomy Tournament: Fish

Polypteridae. This order is made up of reedfish and bichirs, freshwater fish that have lungs, with some species capable of breathing air.

Acipenseriformes. This order is made up of basal fishes with skeletons made mostly of cartilage. It includes sturgeons and paddlefish.

[picturesoffishandotherthings]

Here! Have 2 minutes of my fish enjoying themselves after a big waterchange.

Ill have to cut more plants next time

[fishyfishyfishtimes]

Daily fish fact #561

Reedfish!

Their larvae have external gills, making them resemble salamander larvae. Due to their elongated bodies, their movements are very snakelike as they swim close to the bottom of their habitat.

[soulsty]

I made a Zelda OC/sona :]

[soulsxng]

From that last post, here’s my little menagerie of animals, for those interested.

On the left is Rune. (Roo/Roo-berry/Booger buns, or, if he’s being a lil’ shit, Runepert D. Dinkle.) He’s an elkhound, he’s gonna be 2 in April, and he’s a trip tbh. Wants to make friends with every person that deigns to look in is direction, and WILL make sure that his displeasure is heard, if he isn’t allowed to do so. The only exception is if I see the person before he does, and say “Oh no, baby. They’re doing things and stuff, we can’t have friendship right now”

On the right is Kona. (Koko, Nanner, Coconut, Noot-Noot. If she’s in trouble, she gets the full name “KONA RHEE!”) She’s a German shepherd and Rottweiler cross, and she’s scared of literally everything. Loves beds, will start pointing if she hears the words “Do you want”, even if they’re not directed at her. She also enjoys splooting in front of you, while giving you a judge-y stare that will make you regret All of your life decisions. She turned 5 in October.

In the middle is Pippin. (Pip/Peep/Pipsqueak. If he’s in trouble it’s Pippin Squeakers. Sometimes he’s snooty, and will answer only to his Name of Distinction: ‘Ah, Pippin Squeakers, the Sweetest and Most Benevolent, Babiest of All Boys’…and then he’ll deign to grace you with his presence). He’s our old man who turned 9 in November. He hoards balls to compensate his own having been chopped off, and can say “Mama”, “Yeah”, “No”, and “I dunno”. Also screams when slighted.

Next are the birds. The first one, enjoying his mashed potatoes, is Wynnie! (Woodle-noodle/Woopie-wooper/Wynnie-woo) He’s a pied cockatiel, and he’s 6 years old. The first song he ever learned was the Chocobo song from final fantasy. He enjoys calling Pip over to the cage at all hours of the day and night, mimicking dog cries/barks/growls, and having his cheeks scratched. Also says “What the fuuuuuuuck?” At almost scarily apt moments.

The next one is actually my brother’s bird, but he’s at our house…probably all but 1 week per month? His name is Rocky (Ki-bird/Chonker) He’s only a year and a half, and he’s a silver-pied cockatiel. He likes to say “Oh, good boy?”, plays peekaboo, and is currently learning the o.ld sp.ice whistle. He also uh. Has exorcisms from time to time. It’s actually really funny. When you enter the house, you have .2 seconds to do a specific whistle pattern at him so he knows you’re chill, or he’ll start going off like a fire alarm.

[deathmoth-blog]

The reedfish, ropefish (more commonly used in the United States), or snakefish, Erpetoichthys calabaricus, is a species of fish in the family Polypteridae alongside the bichirs. It is the only member of the genus Erpetoichthys. It is native to fresh and brackish waters in West and Central Africa. The reedfish possesses a pair of lungs in addition to gills, allowing it to survive in very oxygen-poor water. It is threatened by habitat loss through palm oil plantations, other agriculture, deforestation, and urban development.

The largest confirmed reedfish museum specimen was 37 cm (15 in) long, and three studies where more than 2,000 wild reedfish were caught (using basket traps, meaning that only individuals longer than 15–20 cm [6–8 in] were retained) found none that exceeded 41.4 cm (16.3 in). Although sometimes claimed to reach up to 90 cm (3 ft) long, this is incorrect.

Body elongation in fishes, such as eels, usually happens through the addition of caudal (tail) vertebrae, but in bichirs it has happened through the addition of precaudal vertebrae. Reedfish have evolved a more snakelike body by having twice as many precaudal vertebrae as the members of its sister genus Polypterus, despite having the same number of tail vertebrae. Pelvic fins are absent, and the long dorsal fin consist of a series of well-separated spines, each supporting one or several articulated rays and a membrane. The reedfish possesses a pair of lungs, enabling it to breathe atmospheric air. This allows the species to survive in water with low dissolved oxygen content and to survive for an intermediate amount of time out of water. The sexes are very similar in both median and maximum length, but females average heavier than males of a similar length, and they can be reliably separated by the shape of their anal fin. Reedfish are dark above and on the sides, with lighter orangish or yellowish underparts. Males are generally more olive-green in colour, whereas females generally are more yellowish-brown. Larvae have conspicuous external gills, making them resemble salamander larvae.

The genus name derives from the Greek words erpeton (creeping thing) and ichthys (fish).

[1o1percentmilk]

ohmygod these pics r so bad.

i dont know what this isbut i was absolutely mesmerized by it while i was talking to this guy. it looks like a mini dragon..

I HAVE TO SHOW U GUYS THIE FREAKY ASS FISH I SAW AT A RESTAURANT TODAY

[halomancer]

Okay my childhood hyperfixation on aquariums has returned with a VENGEANCE, so I want to make a post of all my dream fish

Norman’s lampeye:

Pea puffer:

Kuhli loach:

Chocolate gourami:

Reedfish:

[transgenderer]

Ampullae of Lorenzini (singular Ampulla) are electroreceptors, sense organs able to detect electric fields. They form a network of mucus-filled pores in the skin of cartilaginous fish (sharks, rays, and chimaeras) and of basal bony fishes such as reedfish, sturgeon, and lungfish. They are associated with and evolved from the mechanosensory lateral line organs of early vertebrates. Most bony fishes and terrestrial vertebrates have lost their ampullae of Lorenzini.

A positive pore stimulus decreases the rate of nerve activity coming from the electroreceptor cells, while a negative pore stimulus increases the rate. Each ampulla contains a single layer of receptor cells, separated by supporting cells. The cells are connected by apical tight junctions so that no current leaks between them. The apical faces of the receptor cells have a small surface area with a high concentration of voltage-dependent calcium channels (which trigger depolarisation) and calcium-activated potassium channels (for repolarisation afterwards).

Because the canal wall has a very high resistance, all the voltage difference between the pore of the canal and the ampulla is dropped across the 50 micron-thick receptor epithelium. Because the basal membranes of the receptor cells have a lower resistance, most of the voltage is dropped across the excitable apical faces which are poised at the threshold. Inward calcium current across the receptor cells depolarises the basal faces, causing a large action potential, a wave of depolarisation followed by repolarisation (as in a nerve fibre). This triggers presynaptic calcium release and release of excitatory transmitter onto the afferent nerve fibres. These fibres signal the size of the detected electric field to the fish's brain.

The ampulla contains large conductance calcium-activated potassium channels (BK channels). Sharks are much more sensitive to electric fields than electroreceptive freshwater fish, and indeed than any other animal, with a threshold of sensitivity as low as 5 nV/cm. The collagen jelly, a hydrogel, that fills the ampullae canals has one of the highest proton conductivity capabilities of any biological material. It contains keratan sulfate in 97% water, and has a conductivity of about 1.8 mS/cm. All animals produce an electrical field caused by muscle contractions; electroreceptive fish may pick up weak electrical stimuli from the muscle contractions of their prey.

[hypnosiacon-archive]

Hm.. top five jellyfish (or fish in general if there aren't enough jellyfish types)?

I can do both! Jellies first

Physalia physalis - man' o' war

Aurelia aurita

Cassiopea andromeda

Craspedacusta sowerbii

Rhizostoma pulmo

And order with fishes changes sometimes but here are the ones I do love

Chauliodus

Dunkleosteus

Regalecidae - Oarfishes

Anguilliformes - Eels

Erpetoichthys - Reedfish

Bonus mention for Lungfishes (Dipnoi), Gars, Arapaiminae and Koi fishes.

[taxonomytournament]

Taxonomy Tournament: Fish

Salmoniformes. This order is made up of migratory carnivorous fish, including salmon and trout.

Polypteridae. This order is made up of reedfish and bichirs, freshwater fish that have lungs, with some species capable of breathing air.

[picturesoffishandotherthings]

Ha! Today I managed to take some pics and a video of some of the ropefish.

I just love them.

[fishyfishyfishtimes]

Using phylogeny to horribly warp the definition of a fish, my favourite fish is probably the binturong (Although all procyonids are also incredible). There's just something great about a mid-sized feliform with a semi-prehensile tail and a smell of popcorn about it. Plus they sometimes look like haggard old men and it's fantastic. Using fish to mean things people classically refer to as fish, I love polypterids (Bichir) etc. I love the fact some of them can move around on land, I love how basal they are to all the other ray finned fish (Nothing against other ray finned fish, there's just something charming about lonely branches on the tree of life to me), I love their shapes, I love the fact reedfish/ropefish look like they're smiling. I love the fact they (and everyone walking past) will side eye me if I baby talk them at my nearest aquarist. A tier fish, one day I will live in a place large enough to have one.

Fine tetrapod and true fish choices! Bichirs are cool fish indeed, I don’t think I appreciate them enough for just how cool they are; they even have lungs!! I’ll need to research them a bit more, it’s clear, and spread bichir joy in the world.

Binturong joy, too. Unappreciated animals deserve recognition! Plus they literally look like this:

If the Muskrat from the Moomins wasn’t already a, you know, muskrat…. He should’ve been this. 100%. Perfect nihilistic philosopher.

[doggiewoggiez]

This obviously isn't my pic but I do wanna also say I'm gonna be getting one of these guys for my 75 gallon once it's cycled. Senegal Bichir (French pronunciation would be Bee-Sheer but Latin would be like Biker) also known as the Dinosaur Bichir (which, dinosaur biker sounds like the subject of a painting airbrushed on the side of a stoner van)

They're absolutely beautiful and I wanted to keep him with some reedfish but it's only a four foot tank and I don't want to overstock since there'll also be a school of Congo tetras (big enough he won't fuck with em)

[bacony-cakes]

AND NOW, ALL BEASTS, IN ORDER CATEGORICAL!

NON-BEASTLY BEASTS:

Non-ParaHoxozoa:

Calcarea (Calcareous Sponges)

Hexacinellida (Glass Sponges)

Demospongiae (Demosponges)

Tentaculata (Tentacled Ctenophores)

Beroida (Non-Tentacled Ctenophores)

ParaHoxozoa, Non-Nephrozoa:

Placozoa

Anthozoa (Corals, Sea Pens, and Tube-Dwelling Anenomes)

Medusozoa (Jellyfish and Hydrozoans)

Myxozoa

Xenacoelomorpha

MINIBEASTS:

Spiralia, Non-Lophotrochozoa:

Gnathifera (Rotifers and Jaw Worms)

Mesozoa

Rouphozoa (Flatworms and Gastrotrichs)

Lophotrochozoa, Non-Mollusca:

Cycliophora

Annelida (Segmented Worms)

Nemertea (Ribbon Worms)

Bryozoa

Entoprocta

Phorodina (Horseshoe Worms)

Brachiopoda

Mollusca:

Solenogastres

Caudofoveata

Polyplacophora (Chitons)

Bivalvia (Clams, Scallops, Mussels, Oysters, Cockles, and others)

Monoplacophora

Scaphopoda (Tusk Shells)

Gastropoda (Snails, Slugs, Sea Snails, Sea Slugs, and others)

Cephalopoda (Nautiloids, Cuttlefish, Squid, and Octopi)

Ecdysozoa, Non-Arthropoda:

Loricifera

Priapulida (Penis Worms [sic])

Kinorhyncha (Mud Dragons)

Nematoda (Roundworms)

Nematomorpha (Horsehair Worms)

Tardigrada (Tardigrades)

Onchyophora (Velvet Worms)

Arthropoda, Non-Mandibulata:

Pycnogonida (Sea Spiders)

Xiphosura (Horseshoe Crabs)

Acariformes (Cheese Mites, Scabies Mites, Eyelash Mites, House Mites, and others)

Opiliones (Harvestmen)

Ricinulei (Hooded Tickspiders)

Solifugae (Camel Spiders)

Parisitiformes (Ticks, Varroa Mites, and others)

Pseudoscorpiones (Pseudoscorpions)

Scorpiones (Scorpions)

Araneae (Spiders)

Amblypigi (Whip Spiders)

Urgopygi (Whip Scorpions)

Mandibulata, Non-Insecta:

Chilopoda (Centipedes)

Symphyla (Pseudocentipedes)

Pauropoda

Diplopoda (Millipedes)

Ostracoda (Seed Shrimp)

Mystacocarida

Branchiura (Fish Lice)

Pentastomida (Tongue Worms)

Copepoda (Copepods)

Tantulocarida

hecostraca (Barnacles and others)

Malacostraca (Crabs, Lobsters, Shrimp, Isopods, Amphipods, and others)

Cephalocarida (Horseshoe Shrimp)

Branchiopoda (Fairy Shrimp, Tadpole Shrimp, Water Fleas, and others)

Remipedia

Collembola (Springtails)

Protura

Diplura (Two-Pronged Bristletails)

Insecta, Non-Neoptera:

Archaeognatha (Jumping Bristletails)

Zygentoma (Silverfish, Firebrats, and others)

Odonatoptera (Dragonflies and Damselflies)

Ephemeroptera (Mayflies)

Neoptera, Non-Holometabola:

Zoraptera (Angel Insects)

Dermaptera (Earwigs)

Plecoptera (Stoneflies)

Orthoptera (Grasshoppers, Crickets, and others)

Mantodea (Mantises)

Blattodea (Cockroaches and Termites)

Notoptera (Ice Crawlers and Rock Crawlers)

Phasmatodea (Stick Insects and Leaf Insects)

Embioptera (Webspinners)

Psocodea (Lice)

Hemiptera (Shield Bugs, Aphids, Scale Insects, Cicadas, Planthoppers, Assassin Bugs, Water Boatmen, Pond Skaters, and others)

Thysanoptera (Thrips)

Holometabola:

Hymenoptera (Sawflies, Bees, Wasps, and Ants)

Strepsiptera

Coleoptera (Beetles)

Raphidioptera (Snakeflies)

Neuroptera (Lacewings, Antlions, and others)

Megaloptera (Dobsonflies and others)

Lepidoptera (Butterflies and Moths)

Trichoptera (Caddisflies)

Diptera (Flies, Mosquitoes, Gnats, Midges, Hoverflies, and others)

Mecopteroidea (Scorpionflies, Hangingflies, and Fleas)

SLIGHTLY MORE BEASTLY BEASTS:

Ambulacraria:

Echinodermata (Starfish, Sea Urchins, Brittle Stars, Feather Stars, and others)

Hemichordata (Acorn Worms and others)

Chordata (Non-Vertebrata):

Leptocardii (Lancelets)

Tunicata (Sea Squirts, Salps, Pyrosomes, and others)

Vertebrata (Non-Eutelostomi):

Myxini (Hagfish)

Hyperoartia (Lampreys)

Elasmobranchii (Sharks, Rays, and Skates)

Holocephali (Chimaeras)

Actinopterygii (Non-Acanthomorpha):

Cladistia (Bichirs and Reedfish)

Acnipenseriformes (Paddlefish and Sturgeons)

Halecomorphi (Bowfins)

Ginglymodi (Gars)

Elopocephalai (Eels, Ladyfish, Halosaurs, and others)

Osteoglossocephala (Arapaima, Goldeye, and others)

Clupei (Herrings and Anchovies)

Apelocephali (Slickheads and others)

Anotophysa (Milkfish, Beaked Salmon, and others)

Cypriniformes (Carp, Goldfish, Loaches, Minnows, and others)

Characiformes (Characins, Pacu, Pirahnas, Tetras, and others)

Gymnotiformes (Knifefish and Electric Eels)

Siluriformes (Catfish)

Lepidogalaxii (Salamanderfish)

Protacanthopterygii (Salmon, Pike, Trout, Barreleye, and others)

Stomiati (Smelts, Marine Hatchetfish, and others)

Ateleopodia (Jellynose Fish)

Aulopa (Bombay Duck and Lancetfish)

Myctophata (Lanternfish)

Acanthomorpha:

Lampridacea (Oarfish, Opah and others)

Paracanthomorphacea (Cods, Dories, Cavefish, and others)

Polymixiacea (Beardfish)

Berycimorphaceae (Fangtooths, Pineconefishes, and others)

Holocentrimorphaceae (Soldierfish)

Ophidiiformes (Pearlfish)

Batrachoidimophara (Toadfish)

Gobiomorpharia (Seahorses, Pipefish, Tunas, Flying Gurnards, and others)

Anabantaria (Gouramis, Swamp Eels, and others)

Carangaria (Swordfish, Flatfish, Remoras, and others)

Ovalentaria (Blennies, Cichlids, Flying Fish, Mullets, and others)

Eupercaria (Anglerfish, Pufferfish, Wrasses, Sunfish, Sticklebacks, Lumpsuckers, Lionfish, Angelfish, Perches, Archerfish, Triggerfish, Bass, and others)

Sarcopterygii:

Actinistia (Coelocanths)

Dipnoi (Lungfish)

BEASTS PROPER:

Lissamphibia:

Salientia (Frogs and Toads)

Caudata (Salamanders and Newts)

Gymnophiona (Caecilians)

Reptilia (Non-Aves):

Rhynchocephalia (Tuatara)

Dibamidae (Blind Skinks)

Gekkota (Geckos and Flap-Footed Lizards)

Scinciformata (Skinks and others)

Laterata (Tegus and Worm Lizards)

Anguimorpha (Slow Worms, Monitors, Gila Monster, and others)

Iguania (Anoles, Iguanas, Chameleons, and others)

Serpentes (Snakes)

Testudines (Turtles and Tortoises)

Crocodilia (Crocodiles, Gharials, Alligators, and Caiman)

Aves (Non-Passeriformes):

Palaeognathae (Ostriches, Kiwis, and others)

Galloanserae (Chickens, Ducks, and others)

Mirandornithes (Flamingos and Grebes)

Columbimorphae (Doves and others)

Otidimorphae (Cuckoos, Turacos, and Bustards)

Gruimorphae (Gulls, Cranes, Auks, and others)

Ophistocomidae (Hoatzins)

Strisores (Hummingbirds, Nightjars, Potoos, and others)

Phaethoquornithes (Boobies[sic], Loons, Ibises, Penguins, Albatrosses, Tropicbirds, and others)

Acciptirimorphae (Vultures, Hawks, Eagles, and others)

Strigiformes (Owls)

Coraciimorphae (Kingfishers, Woodpeckers, Quetzals, and others)

Cariamiformes (Seriemas)

Falconiformes (Falcons)

Psittaciformes (Parrots)

Passeriformes:

Acanthisitti (New Zealand Wrens)

Tyranni (Overnbirds, Spadebills, Gnateaters, and others)

Menurida (Lyrebirds and others)

Climacterida (Bowerbirds and others)

Meliphagida (Honeyeaters, Bristlebirds, and others)

Orthonychida (Logrunners and others)

Corvides (Crows, Jays, Boatbills, Shriketits, Sittellas, Birds-Of-Paradise and others)

Passerides (Satinbirds, Sparrows, Larks, Tits[sic], Oxpeckers, Thrushes, Wrens, Finches, Tanagers, Nuthatchers, and others)

Mammalia (Non-Laurasiatheria):

Monotremata (Platypus and Echidnas)

Marsupialia (Kangaroos, Opossums, Wombats, and others)

Xenarthra (Anteaters, Sloths, and others)

Athrotheria (Elephants, Manatees, Aardvarks, and others)

Lagomorpha (Rabbits, Hares and others)

Rodentia (Mice, Rats, Cavies, Beavers, Squirrels, and others)

Scandentia (Treeshrews)

Dermoptera (Colugos)

Primates (Lemurs, Marmosets, Baboons, Gibbons, Chimpanzees, and others)

Lauasiatheria (Non-Carnivora):

Eulipotyphla (Shrews, Moles, Hedgehogs, and others)

Chiroptera (Bats)

Artiodactyla (Girrafes, Deer, Whales, Pigs, Camels, and others)

Perissodactyla (Horses, Tapirs, and Rhinoceroses)

Pholidota (Pangolins)

Carnivora:

Viverroidea (Hyenas, Mongooses, Civets, and others)

Feloidea (Lions, Tigers, Caracals, Wildcats, Leopards, and others)

Nandiniidae (African Palm Civet)

Caninae (Wolves, Foxes, and others)

Ursidae (Bears)

Musteloidea (Skunks, Weasels, Otters, Raccoons, and others)

Pinnipedia (Seals, Sea Lions, and Walruses)

[subbalakshmisastry]

AWESOME ROPE FISH / SNAKEFISH / REEDFISH ( Erpetoichthys calabaricus) HD