Dictionary of Ichthyology  

gular plate = the median or paired, dermal, flat bone(s) between the lower jaws of primitive Teleostomes, below the basibranchials. There is a median gular in Amiidae and some Elopidae, Megalopidae and Albulidae, in some Dipnoi there is a second, posterior median plate while others have two pairs of gulars lateral to the median plate, and in Latimeria, Polypterus and Calamoichthys there is a median plate and a lateral plate on each side. Presumably gulars are serially homologous with branchiostegal rays.

Photograph by Brian W. Coad.

Canadian Museum of Nature
www.briancoad.com