Giant Acorn Worm

{{Infobox|name=Giant Acorn Worm|image=caption=Larvae of the planctosphaera pelagica|type=Acorn Worm|1st Sighting=N/A|last sighting=N/A|Country=Worlds Oceans|Specific Area=Oceanic mud|Population=Unknown}}


Giant Acorn Worm are an undiscovered marine :Category:Worms (non-arthropod invertebrate animals)|invertebrate of the Eastern North Atlantic and North Pacific :Category:Oceanic Cryptids|Oceans. 

 Description 
The species Planctosphaera pelagica of the phylum hemichordata is only known by its swimming larvae. Its larvae (known as tornariae larvae) is larger than other hemichordates, and if the size ratio is the same as in other species, the adults could potentially grow to 9 feet long. The larvae are large, transparent spheres with ciliated feeding bands and a U-shaped alimentary tract. This species is also unique in possessing mucus secreting glands around the ciliated band.

The Planctosphaera pelagica live at depths of 250-1,660 feet in oceanic mud.

 Explanation 
It is possible the larvae may be an abnormally enlarged tornariae of another family of acorn worms (the Ptychoderidae family) that fail to metamorphose into adults.

 Gallery 
<gallery>
Adult acorn worm of a sperate species
</gallery><br />

 Sources 

 Eberhart, George M. (2002) Mysterious Creatures: A Guide to Cryptozoology ABC-CLIO, Inc. ISBN 1-57607-283-5
 [https://en.wikipedia.org/wiki/Planctosphaera Planctosphaera - Wikipedia] 
Category:Worms (non-arthropod invertebrate animals)>Category:Worms (non-arthropod invertebrate animals)
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