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Rhinobatis: the Shark - Ray guitar shaped fish

Discussion in 'Marine Science & Conservation' started by TSS, Jun 25, 2020.

  1. TSS

    TSS Dive Shop

    # of Dives: 5,000 - ∞
    Location: Amphoe Muang Ranong, Ranong, Thailand, Thailand
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    Guitar fish: guitar rays or guitar sharks?
    guitar-fish-facts_orig.jpg

    Guitar fish belong to the Rhinobatis genus. "Rhino" is the Greek word for Nose and "batis" the Latin word for ray.

    Guitarfish belong to the ray family but are often mistaken for shark or called guitar sharks. They have fins on their back making them look like sharks and swim with using their "shark" tail whereas most other rays prefer flapping their pectoral fins as a propeller.

    Like all other rays, their mouth is positioned under their body making it practical to eat sea dwellers but impossible to breathe through their mouth. Instead, their use "vents" situated on their head to inhale and gills to exhale.
    Guitar Fish diet
    Guitar rays eat crustaceans, fish and molluscs on the sandy patches of the sea. Their flat teeth can crush their prey and even those with hard shells.
    Bowmouth guitarfish have rows of shark-teeth looking spikes on their back to protect them from predators.
    guitarfish-orig-orig_orig.jpg

    Reproduction of the guitar rays
    Like other rays, they are ovoviviparous (embryos grow inside an egg in-utero, the egg hatches inside and the mama-ray give birth to 2 to 11 live pups ready to swim away).
    Are guitar sharks dangerous?
    While Guitarfish can grow up to 3 meters long, they are completely harmless. Their main predator is human (fisheries) as well as Tiger sharks or other big sharks.
    bowmouthguitarfish004_orig.jpg
    Where can you see Guitarfish
    Guitarfish are found in shallow waters of tropical seas. Bowmouth are considered vulnerable to extinction due to overfishing. Shovelnose guitarfish are much flatter and like to burrow in the sand.

    Click this link if you want to know more about Marine life we see in Burma.
     
    txgoose, RyanT, wnissen and 1 other person like this.
  2. wnissen

    wnissen ScubaBoard Supporter ScubaBoard Supporter

    # of Dives: 50 - 99
    Location: Livermore, Calif.
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    Those look really neat, thanks for the pictures and info!
     
  3. CWK

    CWK Contributor

    # of Dives: 1,000 - 2,499
    Location: Probably on a LOB somewhere
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    Ancient or modern Greek?

    Any link to rhinoceros, rhinophia, or rhinoplasty?
     
  4. TSS

    TSS Dive Shop

    # of Dives: 5,000 - ∞
    Location: Amphoe Muang Ranong, Ranong, Thailand, Thailand
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    Thank you :) glad you like it! Plenty more on our blog, feel free to visit! thesmilingseahorse.com/blog
     
  5. TSS

    TSS Dive Shop

    # of Dives: 5,000 - ∞
    Location: Amphoe Muang Ranong, Ranong, Thailand, Thailand
    53
    60
    I am no expert in greek but this is what google told me:
    The genus name Rhinoceros is a combination of the ancient Greek words ῥίς (ris) meaning 'nose' and κέρας (keras) meaning 'horn of an animal'.
    I suppose rhinoplasty is the same nose and plassein (“to shape”) = shaping of the nose :)
     
  6. CWK

    CWK Contributor

    # of Dives: 1,000 - 2,499
    Location: Probably on a LOB somewhere
    1,050
    645
    Which is why I thought rhinobatis may be appropriate for shovel nose ray.
     
  7. TSS

    TSS Dive Shop

    # of Dives: 5,000 - ∞
    Location: Amphoe Muang Ranong, Ranong, Thailand, Thailand
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    It would make sense indeed :)
    I found this here Pseudobatos productus summary page and thought that was a decent source... but you might be right! It is the nose ray rather than shark ray...
    I also checked the word shark in Greek is not Rhine... I guess you can't trust the internet too much :p I'll correct my article. thank you!
     
  8. NothingClever

    NothingClever ScubaBoard Sponsor ScubaBoard Sponsor

    # of Dives: 200 - 499
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    These confounded my eyes when seeing one for the first time. I saw a young adult in the Red Sea at the very end of a totally uneventful sunrise dive and the three of us were totally spellbound during the encounter and after the dive.
     
  9. Jcp2

    Jcp2 Literally virtually diving ScubaBoard Supporter

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    I dove with three friendly guitarfish twice in Florida.


    Epcot.
     
  10. TSS

    TSS Dive Shop

    # of Dives: 5,000 - ∞
    Location: Amphoe Muang Ranong, Ranong, Thailand, Thailand
    53
    60
    I was about the same. The first guitarfish I saw was a bow mouth and it took me a little while to recognize it. My eye first spotted the shark silhouette shape and "whale-shark like" color and I was Wowed by its gentle swim.
    I find shovelnose less spell-bounding but still a pretty cool encounter!
     

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