OntologiesxaoclassesXAO:0000324   
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hypobranchial placode
http://purl.obolibrary.org/obo/XAO_0000324

A unique type of neurogenic placode, located ventral and caudal to the 2nd and 3rd pharyngeal pouches, which gives rise to small hypobranchial ganglia of yet unknown function.

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