part of prelabium prelabial crown In anopheline and some culicine larvae, an elevated, usually cusped tongue-like structure located between the median prelabial tooth and the prelabial outgrowths of the labiohypopharynx; in other culicines it is unrecognizably fused with the prelabial cusps, prelabial denticulus, and the mesal parts of the prelabial dental arches to form the complex of median prelabial teeth; believed to be at least partly homologous with a narrow toothed ridge located ventral to the median prelabial tooth in some dixids. TGMA:0001151 TGMA:0001151 bi-apical dens caudal arm central process default_namespace glossa median fossae median projection median tooth paraglossa peg-like structures peglike processes premental pouches ridge teeth three-pointed process toothed ridge