Serrated deepwater scorpionfish (Scorpaenopsis crenulata)

Biology

Dorsal spines (total): 12; Dorsal soft rays (total): 9; Anal spines: 3; Anal soft rays: 5. This species is distinguished by the following characters: 17 pectoral-fin rays; 37 scale rows in longitudinal series; 19 pored lateral-line scales; posterior margin of maxilla extending well beyond a vertical through posterior margin of orbit; an additional spine arising from a low median ridge of anterior lacrimal spine; posterior lacrimal spine divided into 2 spinous points; poorly developed interorbital ridges, covered with skin (not visible if skin is not removed); upper opercular spine divided into three spinous points; postocular, tympanic, nuchal, pterotic, posttemporal, and supracleithral spines serrated; extremely deep occipital pit, its depth greater than pupil diameter; space between ventral margin of orbit and suborbital ridge broad, its distance 4.1% SL; extremely deep suborbital pit, its depth subequal to pupil diameter; a pair of pores behind a symphysial knob on l

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