OF EUTHERIAN ORDERS. 
OF EUTHERIAN ORDERS. 
613 
CETACEA. 
No teeth or 
varying number 
of homodont 
teeth. 
CARNIVORA. 
Incisors 3 and 
pointed, canines 
large t molars 
secodont (cut- 
ting ridges), 
INSECTIVORA, 
Incisors gtoz 
and pointed. 
Canines small, 
tubercular molars 
CHIROPTERA. 
Incisors 2, can- 
ines small, molars 
tubercular 
or grooved. 
PRIMATES. 
is 2 
Incisors 2 
chisél-shaped, 
canines moderate, 
molars tuber- 
cular. 
Fore-limbs 
paddles, hind- 
limbs absent. 
_ Digits $(hyper- 
phalangic). 
No clavicles. 
Plantigrade and 
digitigrade (pad- 
dles). 
. 
Digits 4 usually 
(aquatic, 4). 
Noclavicles (or 
vestigial). 
Plantigrade. 
Digits 
ole 
Usually clavi- 
cles. 
Fore-limbs 
wings, hind- 
limbs prehensile. 
Digits § (claw 
only on 1 or on 
x and 2 of fore- 
limb). 
Large clavicles. 
Plantigrade or 
prehensile. , 
Digits $ (or 4), 
Large clavicles. 
Diffuse (non- Zonary (decid- |~ Discoidal (de- Discoidal Diffuse (non- 
deciduate). uate) ciduate). (deciduate). deciduate) or 
metadiscoidal 
(deciduate). 
Aquatic, Pisci- Terrestrial, Terrestrial, fErial, _ Frugi- Arboreal or 
vorous. 
Carnivorous (or 
Fossorial or Ar- 
vorous or Insecti- 
Terrestrial, 
Aquatic and | boreal, Insecti- | vorous. Frugivorous or 
Piscivorous). vorous. Omnivorous. 
Cosmopolitan. Cosmopolitan, Arctogean Cosmopolitan. | * Neogoea and 
few in Neogcea | realm (except Arctogoea, 
and Notogcea. 
Solenodon) 
