Lythrichthys

Lythrichthys deepwater red scorpionfishes are characterised by typically having 3 spines and 5 soft rays in the anal fin, although there may be as few as 4 or as many as 6 anal soft rays/ they have 7-12 predorsal scales. The body depth at the origin of the pelvic fin is 29.1% to 38.6% of the standard length and the interorbital area has a width at the vertical midline of eye of 8.1% to 12.9% of the standard length. The snout, dorsal and ventral surface of head have no scales. No less than 75% of the lateral surface of premaxilla is covered by a well-developed lip. the first lacrimal spine is well developed and is roughly the same length as the second and third spines. There are 5 preopercular spines, with the second being much less well developed than the first and third which are also much longer than the fourth and fifth spines which are subequal in length. The tip of the first lacrimal spine just extends over the upper lip< the scales on the thorax and abdomen are clearly embedded in the skin. they have a well developed swim bladder.^[5]

Lythrichthys deepwater red scorpionfishes are found in the Indo-West Pacific as far north as Japan and south to Australia and west as far as Fiji.^[2]