Black __fish Are Dark With White Dorsal Lines
This page is the CodyCross answer for the clue below from Deserts of the world, Group 1616, Puzzle 4 (Dune Bashing).
Question is: Black __fish Are Dark With White Dorsal Lines
and the answer is: TRIGGER
Word Meaning:
TRIGGER — (firearms) A finger-operated lever used to fire a gun.
Definitions from Wiktionary.