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A short, sharp spine is present on thepreoperculumand/or operculum and post-temporal bone, the latter spine directed posteriorly.
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A small lower spine occurs on thepreoperculum.
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It lacks scales on midline of nape, anterior to itspreoperculum.
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More cirri project from thepreoperculum, operculum, and under the lower jaw.
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The preopercle is serrated, the lower membranous flap does not extend beyond edge ofpreoperculum.
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There are small spines on thepreoperculumand small prickles in the postpectoral area.
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Thepreoperculumis gently rounded.
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