Any of various dark-finned fishes; especially (more fully "blackfin tuna") a small tuna of the western Atlantic, Thunnus atlanticus, having the second dorsal fin and the dorsal finlets all dark.
Today’s NYT Connections Answers Apr 30, #324 - Daily Updates & Hints
Today’s Wordle Answer Apr 30 #1046- NYT Wordle Hints & Updates
NYT Mini Crossword Answers Today - The Mini for Apr 30 Solved
NYT Strands Today - Hints, Spangram & Answers for April 30