GLOSSARY. 



Allantoic A membranous sac-like appendage for effecting oxygenation and 



other changes in the blood, developed from the posterior part of the alimentary 



tract in the embryos of mammals and other vertebrates. 

 Anchylose To grow together; to unite and become immovable. 

 Alisphenoid Pertaining to the greater wings of the sphenoid bone. 

 Alveola A pit or cavity; as the socket of a tooth. 

 Arboreal Tree dwelling. 

 Antorbital foramen Infraorbital foramen. 

 Audital bulla (see Bulla). 



Axilla Hollow space between junction of the arm and shoulder ; armpit. 

 Basal length (of skull) Distance from lower edge of foramen magnum to extreme 



end of premaxillary in front of incisors. 

 Basilar length of Hensel (of skull) Distance from lower edge of foramen magnum 



to the posterior alveola border of a middle incisor. 

 Bicolor Having two colors. 

 Bicuspid With two cusps. 

 Bifid Divided into two parts. 

 Brachydont Having a low or short crown. 

 Brain case The part of the skull enclosing the brain. 

 Bulla, pi. bullae The swollen portion of the bony part of the external meatus of 



the ear; see chart, p. 12. 

 Caecum A sac or pouch open only at one end, which is situated at the junction 



of the large and small intestines; see page 22. 

 Canine teeth See chart, p. 1 1. 

 Carnassial teeth See chart, p. 14. 



Calcar A bony cartilage extending from the tarsus along the edge of the inter- 

 femoral membrane in bats. 

 Carnivorous Flesh eating. 

 Carpus Bones forming the wrist joint. 

 Caudal Refers to the tail. 



Cheek teeth Teeth on side of jaw posterior to the canine. 

 Chironym Unpublished or manuscript name. 

 Clavicle The collar bone. 

 Cloaca The common cavity into which the hind part of the alimentary canal as 



well as the urinary and generative ducts open. 

 Conch The external ear. 

 Condyle A protuberance on the end of bone forming a point of articulation with 



another bone. 

 Cortex The part of a hair which surrounds the cellular center and which contains 



the color pigment. 

 Crepuscular Active at twilight. 



Cuticle The epidermis or outer covering of the true skin ; see skin. 

 Cusp A point or protuberance on crown of tooth. 



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