9 letters · 12 points in Scrabble
originLatin sciaena (“a kind of sea fish, perhaps a kind of grayling or ombre: Thymallus thymallus”), from Ancient Greek σκίαινα (skíaina, “a sea fish, probably either Sciaena umbra or Umbrina cirrosa”), + -oid.
Etymology from Wiktionary, CC BY-SA 3.0