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n. pl. ratfish or rat·fish·es
A chimaera (Hydrolagus colliei) of eastern Pacific waters, having a large head, a long narrow tail, and triangular pectoral fins.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


n, pl -fish or -fishes
1. (Animals) another name for rabbitfish1
2. (Animals) a chimaera, Hydrolagus colliei, of the North Pacific Ocean, which has a long narrow tail
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014



n., pl. (esp. collectively) -fish, (esp. for kinds or species) -fish•es.
a spotted chimaera, Hydrolagus colliei, of the Pacific Ocean from Alaska to Baja California, having a ratlike tail.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
References in periodicals archive ?
Ray, the fish seen in the video falls under the class "Chondrichthyes" that consists types of the cartilaginous fishes, including chimaeras or ratfishes, sharks, and batoids (rays, skates, guitarfish, and sawfishes).
It is important to note that, in the depth ranges we surveyed, both benthic elasmobranchs (sharks, skates, and rays) and chimaerids (ratfishes) are common in southern California waters [17,18].
However, research has also shown that smaller species like ratfishes have high bite forces for their size, perhaps due to their need to crush hard shells.