The wrymouth (Cryptacanthodes maculatus) sometimes called ghostfish or "potato-head fish", is a slim, eel-like creature belongs to the wrymouth family Cryptacanthodidae. It outgrows the blennies, its relatives, and may reach a length of 97 centimetres (38 in) TL A low spiny dorsal fin stands along the entire back. This includes about 70 spines and unites with the caudal and anal fins. Small eyes lie near the top of its big head. The mouth slants sharply above a ponderous lower jaw. Along its reddish brown upper sides extend several irregular rows of small dark spots. The dorsal and anal fins also show spots. The lack of ventral fins and a pronounced upward pointing mouth are characteristic.