Pontinus rathbuni

Pontinus rathbuni
Highfin Scorpionfish – Pontinus rathbuni
FamilyScientific NameAuthorYearCommon Name
ScorpaenidaePontinus rathbuniGoode and Bean1896Highfin Scorpionfish

Pontinus rathbuni

Unique Characters: Dorsal-fin spines almost always 12. Palatine teeth present. First preopercular spine longest, not counting accessory spine at base of first spine. Soft dorsal fin rays 10 1/2 or fewer (usually 8 1/2 or 9 1/2). Scales on body ctenoid (rough to touch). All pectoral-fin rays unbranched Pectoral-fin rays 17 or 18, rarely 16. Hypohyals without long descending process. Third dorsal-fin spine not notably elongate; first (anterior) preorbital spine on ventral margin of lacrimal bone points back as well as down.

Similar Species:

Spinythroat Scorpionfish Pontinus nematophthalmus

Longspine Scorpionfish
Pontinus longispinis

Spinythroat Scorpionfish Pontinus nematophthalmus. Dorsal-fin spines almost always 12. Palatine teeth present. First preopercular spine longest, not counting accessory spine at base of first spine. Soft dorsal fin rays 10 1/2 or fewer (usually 8 1/2 or 9 1/2). Scales on body ctenoid (rough to touch). All pectoral-fin rays unbranched Pectoral-fin rays 16, rarely 15 or 17. Right and left hypohyals each with long ventrally-directed process at junction of anteriormost right and left branchiostegal rays (not readily visible when mouth is closed).

Longspine Scorpionfish Pontinus longispinis. Dorsal-fin spines almost always 12. Palatine teeth present. First preopercular spine longest, not counting accessory spine at base of first spine. Soft dorsal fin rays 10 1/2 or fewer (usually 8 1/2 or 9 1/2). Scales on body ctenoid (rough to touch). All pectoral-fin rays unbranched Pectoral-fin rays 17 or 18, rarely 16. Hypohyals without long descending process. Third dorsal-fin spine notably elongate in specimens larger than about 120 to 130 mm standard length; first (anterior) preorbital spine on ventral margin of lacrimal bone points forward as well as down.

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