Yes, CTENOPHORE is a Scrabble word!

Letter values in Scrabble US: C 3, T 1, E 1, N 1, O 1, P 3, H 4, O 1, R 1, E 1.

Is it a valid word?

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

biradially symmetrical hermaphroditic solitary marine animals resembling jellyfishes having for locomotion eight rows of cilia arranged like teeth in a comb

Also: comb jelly.