GLOSSARY. IOI 
omos, a shoulder).— The long projecting 
process from the acromion process found in 
certain rodents. 
Metapophysis (Gr. meta, beyond ; apfophuo, I grow 
from).—The mammillary process of human 
anatomy. A lateral process sometimes 
developed on the vertebre. 
Metapterygium (Gr. sefa, behind ; pterwx, a wing).— 
The hinder basal cartilage in the pectoral 
fin of the Elasmobranchii. 
Metasternum (Gr. szeza, behind ; s¢ernon, the chest).— 
The xzphisternum. The posterior portion of 
the sternum, also termed the ensiform carti- 
lage. 
Metatarsal (Gr. meta, beyond ; farsos, the sole of the 
foot)—Applied to each bone of the meta- 
tarsus. 
Metatarsus (Gr. seta, beyond ; Zarsos, the sole of the 
foot).—That part of the pes situated between 
the ankle and the toes. 
Metosteon (Gr. meta, behind ; osteon, a bone).—The 
posterior portion of the sternum in birds. 
Minimus (L. the least)—The fifth digit of the fes or 
MANUS. 
Molar (L. so/a, a mill)—A grinding tooth. 
Multicuspid (L. mts, many; cuspis, a pointed 
extremity).—Possessing many cusps, as the 
molar teeth. 
Mylo-hyoid groove.—A groove on the internal side 
of the mandible, in which the mylo-hyoid 
nerve and artery run. 
