premaxillo-nasal

the antorbital in Lepisosteus which has three nasal bones, prenasal or rostral, adnasal or nasal and premaxillo-nasal or antorbital

Dictionary of ichthyology. 2009.

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  • nasal bone — a paired dermal bone occurring between the premaxilla and the prefrontal, antorbital or lachrymal on either side of the snout and usually enclosing the nares. Lepisosteus has three nasals, prenasal or rostral, adnasal or nasal and premaxillo… …   Dictionary of ichthyology

  • os nasale — (plural ossa nasalia)) nasal bone (a paired dermal bone occurring between the premaxilla and the prefrontal, antorbital or lachrymal on either side of the snout and usually enclosing the nares. Lepisosteus has three nasals, prenasal or rostral,… …   Dictionary of ichthyology

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