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a.1.Having many cusps or points.
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Maxillule with well-developed arthrite bearing four distal multicuspidate spines and three pinnate setae, and one surface seta; coxal endite, basis, exopod and endopod fused, with seven setae in all.
2c) with well-developed gnathobase bearing several multicuspidate teeth and one lateral seta.
Finally, the multicuspidate teeth of hybodonts are considered to be adapted for a "grasping and swallowing" strategy (clutching- or tearing-type sensu Cappetta, 1987) that could include prey such us other small fishes, soft-bodied animals and arthropods.