4QO FIELD MUSEUM OF NATURAL HISTORY ZOOLOGY, VOL. XL 



Deciduous Periodically shed, not permanent ; as, antlers of deer, which fall off 

 annually or milk teeth, which are replaced by others. 



Digitigrade Walking on the toes. 



Diphyodont Having two successive sets df teeth. 



Discoidal Disk-shaped. 



Diurnal Active by day. 



Dorsal Refers to the back. 



Epidermis Outer layer of the skin; see skin. 



Epiphysis A cartilaginous part of a bone which ossifies separately and subse- 

 quently becomes anchylosed to the main part of the bone. 



Foramen, pi. foramina A hole or opening. 



Fossa, pi. fossae A depression or cavity. 



Fossorial Burrowing. 



Frugivorous Fruit eating. 



Hallux First toe of hind foot; corresponds to big toe in man. 



Heterodont Having diversified teeth; as, molars, canines, and incisors. 



Hibernate To become torpid and remain for a certain length of time in a coma- 

 tose condition. 



Homonym One and the same name for two or more different things. 



Hypsodont Applied to teeth having long crowns and short roots, such as the 

 molars of the Bovidce. 



Incisors Front teeth between canines; see chart, p. 12. 



Inguinal Pertaining to the groin. 



Insectivorous Insect eating. 



Interfemoral Between the thighs; used with reference to the membrane between 

 the hind limbs of a bat. 



Interorbital Between the eyes. 



Interorbital breadth Breadth of interorbital constriction. 



Jugal or malar bone See chart, p. 12. 



Lambdoidal ridge A ridge on side of back portion of skull. 



Mamma, pi. mammae A teat. 



Mandible The lower jaw. 



Mastoid breadth Distance between mastoid processes. 



Meatus Used here with reference to the opening of the ear. 



Molars The back cheek teeth; see chart, p. n. 



Monophyodont Having only one set of teeth. 



Nares The nostrils. 



Nocturnal Active by night. 



Nomen nudum or anonym Name originally given to something without an 

 accompanying diagnosis or a reference to an identifiable, published figure or 

 plate. 



Nucleated Having a nucleus or nuclear substance. 



Odontoblast A tooth cell that produces dentine. 



Omnivorous Eating food of all kinds and indiscriminately. 



Orbit Eye socket. 



Palatilar length Distance from posterior end of palatine bone to posterior base of 

 incisors. 



Pectoral Pertaining to the breast. 



Pelage The hair or fur. 



Pencillated Refers to tuft of long hairs extending beyond the end of the tail. 



