GLOSSARY 
amphibious 
anomalous 
anteorbital 
anthropoid 
arboreal 
archaic 
asymmetric, -al 
bandicoot 
canine teeth 
carnassial teeth 
conch 
coniferous 
cusps 
dasyures 
dentine 
deciduous 
diastema 
dimorphism 
distal 
distichous 
diurnal 
embryonic 
enamel 
endemic 
environment 
Able to live on land and in the water. 
Irregular, unconformable. 
Before the orbit (eye). 
The group of monkeys most resembling man; 
man-like. 
Tree-living, tree-climbing. 
Of an earlier or primitive age; antiquated. 
With parts not arranged correspondingly. 
A long-snouted marsupial of the family Pera- 
melidae. 
Eye teeth or dog teeth, usually longer than other 
teeth and sharp-pointed. 
The shearing cheek teeth of carnivores. 
External ear. 
Pertaining to cone-bearing trees. 
Points on the crowns of teeth. 
Carnivorous marsupials. 
The hard, bone-like tissue of teeth. 
Relating to seasonal loss of leaves (botany) ; 
teeth that are replaced by others (zoology). 
A gap between teeth. 
Occurrence of two distinct forms of structure, 
size, coloring, etc., in a single species. 
Farthest away from the body. The hand is at- 
tached to the distal part of the forearm. 
In two rows, as the webs of a feather. 
Active during daylight hours. 
Relating to an embryo or unborn young. 
A hard substance which forms a thin layer cap- 
ping or partly covering the teeth of most 
mammals. 
Having their habitat in a specific district (bi- 
ology). 
The sum total of the surroundings affecting the 
life of an organism. 
355 
