GLOSSARY 309 



Gcmis. A group of species agreeing in certain characters and differing from 



other genera of the family in one or more characters. 

 Gregarious. Going in flocks or herds. 

 Habitat. Region inhabited by a species. 

 Heterogenous. Of unlike or miscellaneous characters. 

 Hibernate. To become torpid in winter quarters. 

 Homogenous. Of like characters. 

 Humerus. The bone of the upper part of the fore limb, from shoulder to 



elbow. 

 Hybrid. Progeny of parents of different species. 

 Immature. Not mature; ungrown. 



Hicisor. Tooth in the front part of mouth, Ijetween the canines. 

 Indigenous. Native in a region. 

 Insectivorous. Feeding on insects. 



Interfemoral membrane. The memlirane connecting the hind legs of a bat. 

 Littoral. Pertaining to the shore. 

 Longitudinal. Lengthwise. 

 Afacnlate. Spotted. 



Mammal. Animals that suckle their young. 

 Maims. The hand or fore foot. 

 Marine. Of the sea. 



Maratime. Pertaining to the border of the sea. 

 Molar. A grinding tooth. 



Monogamous. JNIating with a single individual of the opposite sex. 

 Nocturnal. x\ctive in the night. 



Normal. Of the usual character; standard; regular. 

 Omniz'orous. Feeding on anything eatable. 

 Order. A group of families agreeing in certain characters. 

 Pelage. A covering of hair. 

 Pelagic. Frequenting the sea far from land. 

 Pes. The hind foot. 

 Piscivorous. Feeding on fish. 



Plantigrade. Walking on the full length of the foot. 

 Polygamous. Mating with more than one female. 

 Premolar. The anterior permanent molariform teeth which are preceded by 



deciduous ("milk") teeth. 

 Radius. The front one of the two bones of the forearm. 

 Retractile. Capable of being drawn back, like a cats claw. 

 Rostrum. The beak; the front part of the skull. 

 Sectorial. Adapted for cutting. 

 Septum. A partition. 



