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head spines
(english) Spines of the head of Scorpaenidae members. They are, from anterior to posterior over the top of the head on each side, the nasal, preocular, supraocular, postocular, tympanic, coronal (media to the tympanic and postocular spines), parietal, and nuchal. Opercular spines are at the postero-dorsal corner of the operculum, preopercular spines line the posterior margin of the preoperculum, and the cleithral and postcleithral spines are just above the opercular spines on the side of the head. (See also: opercular, preocular, cleithrum)

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