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Eastern looseskin skate

3/19/2018

 
Picture
An Eastern Looseskin Skate, Insentiraja laxipella, from the southern Coral Sea, east of Curtis Island, Queensland, June 2017, depth 1050 m. Source: Rob Zugaro / Museums Victoria.

We are all about diverse representation here at The Fins United Initiative (TFUI) and we are excited to show off a rare pale blue skate. Smooth as butter (it lacks spikey bits), has a heart-shaped disc, and a long slender tail... the  eastern looseskin skate (Insentiraja laxipella) is a definite looker! With a flexible snout and greyish-brown pelvic fins and an indistinct caudal fin, these flabby skates only have a patch of scales on their pectoral fins (called an alar patch) in the males. #Finfact: These skates have no dorsal fin! The eastern looseskin skate is unique among Australian skates in that it lacks dorsal fins.
 
Eastern looseskin skates are endemic to the continental slope in Queensland. This species is known from very few specimens and nothing is known of its biology. Because of this, the IUCN has assessed them as Data Deficient (DD). However, scientists will want to keep an eye on this animal as Insentiraja laxipella could be generically distinct. #Finfact: The name laxipella is derived from the Latin laxus (loose) and pellis (skin), in regards to this skate's flabby skin!

What little we do know is that they are an oviparous species and can get up to at least 57 cm total length (TL) (Last and Compagno 1999), at which males are mature (Last and Stevens 2009). We can only assume the rest from species like it...

did you know about these animals?

glossary

  • Continental shelf: Extends from a continent underwater, resulting in a shallow-water area.
  • Continental slope: The steep slope from a continental shelf to the ocean floor; usually around 20 km (12.4 miles) wide and made up of mud and silt substrate. It is an ideal area for deep sea fishing. ​
  • Dorsal fin: Fin located on the back.
  • Dorsal side: The top of an animal.
  • Endemic: Native to a specific region or environment and not occurring naturally anywhere else.
  • Pectoral fins: Fins located behind the gills on either side.
  • Oviparity/oviparous: where adult Chondrichthyans lay eggcases (also known as ‘mermaid’s purses) and the baby develops inside the egg before hatching.

say hello!

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    Author

    TFUI Founder Melissa C. Marquez is author of all animal bios and "Behind the Fins" segments.
    ​
    A proud #LatinainSTEM, Marquez is a marine biologist who focuses on shark habitat use and movements; she is also a science communicator (follow her on Twitter) who focuses on diverse Chondrichthyan education and who focuses on the media coverage of sharks.
    You can learn more about her on her website.

    SEE MELISSA'S TEDx TALK HERE:

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  • About TFUI
    • TFUI Origins >
      • About TFUI Founder Melissa
      • TFUI Officers
    • Take a Bite
    • Get Involved
    • FAQ
  • Bite Blog
  • Education
    • The Sharks >
      • Shark Anatomy
    • The Skates & Rays
    • The Chimaeras
    • Why Environments Matter
    • The Threats
    • Open Access >
      • Behind the Fins: Interview series
      • Bite into Research
      • Shark Bites: Book Recommendations
      • Sustainable Seafood Apps
  • Fins United
    • Shark Party Ideas
    • Little Fins Nursery
    • Big Fins Reef
  • Contact