44 EQUINE ANATOMY. 



bars and internal border of the sole ; on each side 

 are found the lateral lacunae or commissures of the 

 frog ; the superior face rests on tlie pyramidal body of 

 the plantar cushion, has a triangular excavation divided 

 by the frog stay or sjmie of the frog ; its base forms 

 the glomes of the frog ; the apex rests on the point of 

 the angle formed by the posterior border of the sole. 



