Members of the genus Hippocampus crossword clue
16 Down · WSJ Crossword, September 4, 2026 · 9 letters
Explanation
The answer to “Members of the genus Hippocampus” is SEAHORSES. It appears as 16 Down in the Wall Street Journal crossword of September 4, 2026, a Friday puzzle titled “AI Slop” by Christopher Youngs, and it fills 9 squares running top to bottom from row 1, column 19 of the 21×21 grid.
A plural clue takes a plural answer, which is why the entry ends in S. The entry begins with S and ends with S, and contains 4 vowels and 5 consonants. If you are working from the crossings, two or three confirmed letters from the Across entries should be enough to lock it in. Friday puzzles are the Journal’s contest crosswords with a hidden meta answer, so expect the rest of this grid to be pitched at the same level.
Past appearances
SEAHORSES has not appeared as an answer in any other WSJ puzzle in our index, which runs from May 2026 onward. It will be listed here the next time it turns up.