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tail base > head+ body
spiracle large2 Ds similar size & shapemouth small, transverseA well behind D2, v close to C -
eye oval, behind mouth2 large DsC notched above, v weak lower lobe2 barbels under snout
mouth small, transverse, opens near front5 short gill slits -
small, slenderD1 short, base nearer pelvic than pectoralC no lower lobeteeth very small, similar on both jaws, with multiple points
rear teeth = combswith A