Definition of colossal squid
:an extremely large squid (Mesonychoteuthis hamiltoni) occurring in deep waters of the Southern Ocean that is the largest known living invertebrate
- … would like to try for observations of the colossal squid, the only one larger than a giant squid. Discovered only in the 1920s, colossal squid live in the Antarctic Ocean and grow to perhaps 46 feet.
- —Dan Vergano, USA Today, 25 Jan. 2013
- Fishermen working in the Antarctic have landed a huge surprise: the first adult colossal squid, Mesonychoteuthis hamiltoni. A New Zealand vessel was deep fishing when it caught the squid, which is said to be male, 10 metres long and 450 kilograms in weight …
- —New Scientist, 3 Mar. 2007
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