Colossal squid
The largest recorded specimen was captured in 2007 by a New Zealand fishing boat off Antarctica. It was initially estimated to measure in length and weigh . The squid was taken back to New Zealand for scientific study. A study on the specimen later showed its actual weight was , but it only measured in total length as a result of the tentacles' shrinking "post mortem".
List of largest fish
Much larger bony fish existed prehistorically, the largest ever known having been "Leedsichthys", of the Jurassic period in what is now England. This species is certainly the largest bony fish ever and perhaps the largest non-cetacean marine animal to have ever existed. Estimates of the size of this fish range from and mass from 20 to 50 tons. A maximum size of and 25–30 tons has been deemed to be most realistic.The largest living lobe-finned fish is the coelacanth. The average weight of the living West Indian Ocean coelacanth, ("Latimeria chalumnae"), is , and they can reach up to in length. Specimens can weigh up to . The largest lobe-finned fish of all time was "Hyneria" at up to .