374 GLOSSAEY. 



Polygamous — Mating with more than one female. 



PrcBCOces — Birds ahle to run about and feed themselves at birth. 



Prascocial — Having the nature of ProBCOces. 



Premaxillaries — Same as intermaxillaries. 



Premolars — The small grinders ; the teeth between the canines 



and the true molars. 

 Preop&rcle — The membrane bone lying in front of the opercle and 



more or less nearly parallel with it; the "false gill covers." 

 Prima/ry — Any one of the ten (often nine, rarely eleven) of the 



large, stiff quills growing upon the pinion or hand-bone of a 



bird, as distinguished from the secondaries, which grow upon 



the fore arm. 

 Prima/ry Wing Ooverta — The coverts overlying the bases of the 



primaries. 

 Projectile — Capable of being thrust forward. 

 Protractile — Capable of being thrust forward. 

 Pulmonary — Pertaining to the lungs. 

 Punctate — Dotted with points. 

 Pyloric caca — Glandular appendages in the form of blind sacs 



opening into the alimentary canal of many fishes at the 



pylorus or passage from the stomach to the intestine. 

 Qaoffo-aie— Nearly square. 



©aa(?r?7ooMZfflr— Four-chambered— said of the heart, 

 Qain—One of the stiff feathers of the wing or tail of a bird. 



* * 

 Quinmmx — Set of five arranged alternately, thus * 



* * 



Radius— 0-a.\BT bone of fore arm. 



Ra/y— One of the cartilaginous rods which support the membrane 



of the fin of a flsh. 

 2Jec*mes— Quills of the tail of a bird. 

 Becwrved — Curved upward. 

 Remiges — Quills of the wing of a bird. 

 Reticulate — Marked with a network of lines. 

 Retractile — Susceptible of being drawn inward, as a cat's claw. 

 iJeirorse— Directed backward. 

 Rictal — Pertaining to the rictus, as rictal bristles. 

 Rictus — Gape of the mouth. 

 Rostral— Peitaming to the snout, as rostral plate. 

 Rudimenta^-y—XJndeveloped. 



