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angelnumber27 · 1 year

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Orange sea pen

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colorsoutofearth · 5 months

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Greenmark hermit crab (Pagurus caurinus) on orange sea pen (Ptilosarcus gurneyi)

Photo by Shane Gross

#Pagurus caurinus #Pagurus #Ptilosarcus gurneyi #Ptilosarcus #greenmark hermit crab #hermit crab #crab #sea pen #orange #crustaceans #marine #marine life #ocean #sea #coral reef #reef life #animals #nature

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amnhnyc · 2 months

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POV: You’re in the middle of the ocean and, for some reason, you need to write something down. To your surprise and delight, you discover that there are about three hundred species of sea pen! Unfortunately for you, none of them can be used for writing.

Named for their resemblance to old-fashioned quills, sea pens are actually not single animals: They are colonies of polyps. All of the polyps work together and each has a role to play. There are feeding polyps that catch plankton, as well as polyps that circulate water to keep the colony balanced and upright.

Photo: diverdan55, CC BY-NC 4.0, iNaturalist (Ptilosarcus gurneyi pictured)

#science #nature #natural history #cool animals #fun facts #fact of the day #sea pen #quills #weird animals #ocean life #marine biology #marine biodiversity #coral reef #animals

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dancingwiththephantoms · 2 months

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Hey Phans,

I have some big news to announce...

My new show "Keeping Up with the Cnidarians" will be swimming over to a screen near you very soon!

The show will follow me and the rest of my Cnidaria Phamily of hydrozoans, scyphozoans, anthozoans, and cubozoans. Join us to see all the exciting things we get up to. I'd like to introduce you to some of them right now!

From Class Hydrozoa, my cousin, Patty (Portuguese Man o' War)(Physalia physalis):

From Class Scyphozoa, my aunt, Molly (Moon Jelly) (Aurelia aurita):

From Class Anthozoa, my uncle, Otto (Orange Sea Pen) (Ptilosarcus gurneyi)

and finally, from Class Cubozoa, my favourite cousin, Chelsea, (Australian Box Jelly) (Chironex fleckeri)

I hope you guys are excited about the show and don't hesitate to comment below who you're most excited to see undulating on your screens!

#realitystar #cniderians #portuguesemanowar #moonjellyfish #orangeseapen #boxjellyfish

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deliciouslydark · 2 years

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Sea Pens (Ptilosarcus gurneyi)

Sea pens are related to sea anemones, corals and jellyfish. Each 'animal' is a colony, with a fleshy anchor which sticks down into the mud or sand, and an upper 'feather-like' part with layers of flaps which can expand out into the water. At the edge of the flaps are a row of polyps, which look like small sea anemones. They live offshore in sheltered bays, feeding on small organisms in the water.

via http://www.seaslugforum.net/showall/seapens

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astronomy-to-zoology · 11 years

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Orange Sea Pen (Ptilosarcus gurneyi)

...a species of sea pen is native to the waters around British Columbia to Central California. Like other cnidarians orange sea pens are colonial and consist of multiple animals known as zooids. Although they are considered sessile, they can move very slowly and can bury themselves if disturbed. They accomplish this by releasing water from their canal system. Orange sea pens luminescence as well, the light is produced from mucous that is released when the colony is touched. Like all cnidarians, orange sea pens feed on passing plankton which are dispatched by their stinging cells.

Phylogeny

Animalia-Cnidaria-Anthozoa-Pennatulacea-Pennatulidae-Ptilosarcus-P.gurneyi

Images: Toby Hudson and calacademy.org

#Orange Sea Pen #Ptilosarcus gurneyi #Sea Pen #Cnidaria #Anthozoa #Pennatulacea #Pennatulidae #Ptilosarcus #pacific #North America

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marineandnerevarine · 12 years

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Orange sea pen, Ptilosarcus gurneyi.

#Orange sea pen #sea pen #Ptilosarcus gurneyi #marine biology #beautiful #aquaria

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