Fin on a Shark's Back
This page is the CodyCross answer for the clue below from Greece, Group 661, Puzzle 4 (Athens Acropolis).
Question is: Fin on a Shark's Back
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.