GLOSSARY. 



TINE, the prong of an antler. 



TRACHEA, the windpipe. 



TRAGUS, the earlet or eminence in front of the opening of the ear 



in certain bats. 

 TRANSPALATINE, the outer wing of the palatine joining the 



maxilla to the pterygoid. 

 TRAPEZIUM, the outer wrist bone joining on to the scaphoid and 



trapezoid and supporting the thumb. 

 TRAPEZOID, the wrist bone joining on to the centrale, scaphoid 



and trapezium. 



TRICONODONT, having three cusps as in the case of molar teeth. 

 TROCHANTERS, the tuberosities at the upper end of the femur. 

 TROCHLEA, the articular surface at the lower end of thehumerus. 

 TRUNCATED, abruptly cut short. 

 TUBERCLE, the point by which the rib is attached to the 



transverse process of the vertebra. 

 TUBERCULATED, bearing tubercles or cusps as in the case of 



molar teeth. 



TUBULIFEROUS, perforated with small tubes. 

 TURBINALS, the two bones in the nasal cavity. 

 TYMPANUM, the ear-drum. 



TYMPANIC, the lower bone on the outer side of the periotic. 

 TYMPANOHYAL, the small bone lying in the passage between the 



tympanic and periotic. 



ULNA, the bone in the fore arm in line with the little finger. 

 ULNARE, the wrist-bone joining on to the ulna. 

 UMBILICUS, the navel; 



UNCIFORM, the wrist bone lying in front of the cuneiform. 

 UNGUICULATE, furnished with claws. 

 URO STYLE, the coccyx in the form of the central bar of the pelvic 



bones in the amphibians. 

 VENTRAL, pertaining to the under surface as opposed to the 



dorsal or upper surface. 

 VERTEBRA, any one of the bony segments of which the backbone 



consists. VERTEBRAE, two or more such segments. 

 VESTIGIAL, traceable in a rudimentary form. 

 VILLOSE, closely haired like the pile of velvet. 

 VISCERA, the internal organs. 



VIVIPAROUS, bringing forth young free from the egg. 

 VOMER, the bone underlying the mesethmoid and the fore portion 



of the presphenoid. 

 WITHERS, the ridge between the root of the neck and the 



shoulder-bones. 

 XIPHISTERNUM, the ensiform process at the hinder end of the 



breastbone. 

 ZYGANTHRUM, the process on the back of a snake's vertebra 



which works on the zygosphene of the adjoining vertebra. 

 ZYGAPOPHYSES, the projecting smooth surfaces by which the 



vertebrae are joined to each other. 

 ZYGOMATIC PROCESS, the process projecting from the 



squamosal and joining on to the malar. 

 ZYGOSPHENE, the process on the front of a snake's vertebra which 



works on the zyganthrum of the adjoining vertebra, 



