Jump to content

Paralarva

Edit links
From Wikipedia, the free encyclopedia

This is an old revision of this page, as edited by Axeman89 (talk | contribs) at 20:41, 29 July 2018. The present address (URL) is a permanent link to this revision, which may differ significantly from the current revision.

Octopus paralarva
Squid paralarva: Psychroteuthis glacialis
Paralarva of Grimalditeuthis bonplandi
Grimalditeuthis bonplandi paralarva
Adult Grimalditeuthis bonplandi
Grimalditeuthis bonplandi adult

Paralarvae (singular: paralarva) are young cephalopods in the planktonic stages between hatchling and subadult. This stage differs from the larval stage of animals that undergo true metamorphosis.[1] Paralarvae have been observed only in members of the orders Octopoda and Teuthida.[2]

The term was first introduced by Richard E. Young and Robert F. Harman in 1988.[2]

File:Chtenopteryx sicula paralarvae - from Commons.jpg
Chtenopteryx sicula paralarvae. Left: Two very young paralarvae. The circular tentacular clubs bear approximately 20 irregularly arranged suckers. Two chromatophores are present on each side of the mantle. Centre: Ventral, dorsal and side views of a more advanced paralarva. An equatorial circulet of seven large yellow-brown chromatophores is present on the mantle. Posteriorly the expanded vanes of the gladius are visible in the dorsal view. Right: Ventral and dorsal views of a very advanced paralarva.

See also

References

  1. ^ "Paralarvae". Larval Images: Larval forms diverse and beautiful!.
  2. ^ a b Richard Edward Young & Robert F. Harman (1988). ""Larva", "Paralarva", and "Subadult" in Cephalopod Terminology". Malacologia. 29 (1): 201–207. Retrieved August 13, 2011.
Retrieved from "https://en.wikipedia.org/w/index.php?title=Paralarva&oldid=852558488"