Editing Arctic grayling (section)

==Description==
[[File:Grayling caught in the Colville River. North Slope, Alaska.jpg|thumb|left|alt=Four Arctic grayling lying on the rocks of a riverband|Arctic grayling caught in the [[Colville River (Alaska)|Colville River]] of Alaska]]Arctic grayling grow to a maximum recorded length of {{convert|76|cm|in|abbr=on}} and a maximum recorded weight of {{convert|3.8|kg|lb|abbr=on}}.  Of typical [[Thymallus|thymalline]] appearance, the Arctic grayling is distinguished from the similar [[Thymallus thymallus|European grayling]] (''T. thymallus'') by the absence of [[dorsal fin|dorsal]] and [[anal fin|anal]] spines and by the presence of a larger number of soft rays in these fins. There is a dark midlateral band between the pectoral and pelvic fins, and the flanks may possess a pink [[iridescence]]. ''T. a. arcticus'' has been recorded as reaching an age of 18 years.