The term refers to a type of puzzle where the answer to a clue is the scientific or common name of a specific marine creature. Solving these puzzles requires knowledge of marine life and an understanding of crossword conventions. An example might involve a clue about an elasmobranch with vertical stripes, where the solution would be the name of that shark.
These word puzzles provide an engaging method for expanding one’s knowledge of ichthyology. The challenge of deciphering clues and fitting answers into a grid enhances cognitive skills, and the subject matter promotes awareness of marine biodiversity. Historically, crossword puzzles have served as both entertainment and educational tools, and this application continues that tradition by focusing on a specific branch of zoology.