(From the chin, and the tongue). Mesoglossi. These muscles arise from the chin, above the genio hyoides, and enter the middle of the tongue to bring it forwards. Winslow thinks that they push the tongue out, retract, or expand it.

Genio hyoidaeus, (from the chin, and hysides, the bone of the tongue). Rectus attollens. A small muscle arising from a tubercle above the beginning of the mylo hyoides, and inserted into the upper part of the base of the os hyoides.

Genio pharyngae'i, (from and mylopharyngaei (Douglas). Muscular fibres joined to the side of the genio glossi, and inserted into the sides of the pharynx, and continuing with the genio glossi to the chin.