spiny-finned

When Spiny Norman, the giant hedgehog, goes looking for the Dimsdale brothers in Monty Python.
Craig Ferguson's 10 Favorite Comedy Moments|Craig Ferguson, The Daily Beast Video|May 20, 2009|DAILY BEAST
The rules were fairly lax, and we watched Spiny Norman shouting “Dimsdale!”
Craig Ferguson's 10 Favorite Comedy Moments|Craig Ferguson, The Daily Beast Video|May 20, 2009|DAILY BEAST
Here and there a cactus plant thrust spiny arms into the air.
The Sunbridge Girls at Six Star Ranch|Eleanor H. (Eleanor Hodgman) Porter
A flash of silver through the air, then a puff of wind, and a red-finned, black-backed roach of about 8-oz.
The Sportswoman's Library, v. 2|Various

Acanthopterygian, ak-an-thop-tėr-ij′i-an, adj. having spiny fins.
Chambers's Twentieth Century Dictionary (part 1 of 4: A-D)|Various
A veritable hail of thunderbolts now crashed down upon the creature's spiny back.
The Myths of the North American Indians|Lewis Spence
The shell is finned, as shown at G, to provide greater heat radiating surface.
Aviation Engines|Victor Wilfred Pag

British Dictionary definitions for spiny-finned

spiny-finned

adjective

(of certain fishes) having fins that are supported by stiff bony spinesSee also acanthopterygian Compare soft-finned

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012