Yes, SPEARFISHES is a Scrabble word!

Letter values in Scrabble US: S 1, P 3, E 1, A 1, R 1, F 4, I 1, S 1, H 4, E 1, S 1.

Is it a valid word?

SPEARFISHES is a valid word in the official Scrabble dictionary (US), the UK Scrabble Dictionary and Words with Friends (ENABLE).

any of several large vigorous pelagic fishes resembling sailfishes but with first dorsal fin much reduced; worldwide but rare