Cottonwick Has a Black Line Under Its __ Fin

This page is the CodyCross answer for the clue below from Medieval Times, Group 236, Puzzle 1 (Moorish Occupation).

Question is: Cottonwick Has a Black Line Under Its __ Fin

and the answer is: DORSAL

Word Meaning:

DORSAL — (anatomy, zootomy) With respect to, or concerning the side in which the backbone is located, or the analogous side of an invertebrate.

Definitions from Wiktionary.

Cottonwick has a black line under its __ fin — CodyCross Answer | CodyCross Solutions