Elasmobranchii (tubarões e raias) (sharks and rays) >
Heterodontiformes (Bullhead and horn sharks) >
Heterodontidae (Bullhead, horn, or Port Jackson sharks)
Etymology: Heterodontus: heteros (Gr.), different; odontos (Gr.), tooth, referring to pointy teeth (for clutching prey) at front of jaws, different than rounded molar-like teeth (for grinding hard-shelled invertebrates) at the back. (See ETYFish); mexicanus: -anus (L.), belonging to: Mexico, referring to its distribution in the Gulf of California along the Mexican coast to at least Oaxaca (and perhaps to Peru). (See ETYFish).
Environment: milieu / climate zone / depth range / distribution range
Ecologia
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