GL OSS AS T. 



67i> 



T'uor F.HES 

 PROCERI 



A name given by Illiger 

 to the Struthionea. 

 a. Capable of being 

 thrust forward or 



PROTRACTILE, J elongated, as the 



PROTRUSILE, j tongue of the Wood- 

 pecker or a Hum- 

 mingbird. 



PSILOP.EDES, n. A more or less artificial 

 group of birds, born weak and help- 

 less, and further distinguished by a 

 scant growth of down affixed to the 

 undeveloped pterylce, or future feath- 

 ers, to which it is temporarily at- 

 tached. The Passeres and most of the 

 Pintras belong to this group. (Syn- 

 onymous with G ymnop&des.) 



PSILOP.EDIC, a. Pertaining to, or hav- 

 ing the nature of, the Psilopcedes. 



\'<\ i -r vci, n, A very natural group of 

 birds, comprising the Parrot tribe 

 only. 



PTERYLA, n. An area or tract of the 

 skin on which feathers grow. A 

 "feather tract." 



PTERYLOGRAPIIY, n. A description of 

 the plumage, with reference to the 

 distribution of the feather tracts or 

 pteryla, 



PTERYLOSIS, n. The plumage, consid- 

 ered with reference to its distribution 

 on the skin. 



PTiLOP-EDES, n. A more or less artificial 

 group of birds, instituted by Professor 

 Sundevall, including those which at 

 birth are covered with down. (Syn- 

 onymous with Dnsypades.) 



PTILOP.EDIC, a. Pertaining to, or having 

 the character of Ptilopcedes. Clothed 

 at birth with down, like the chick of 

 the domestic fowl, a duckling, or a 

 gosling. 



PTIT.OSIS, n. Plumage. 



PULLUS, n. A chick. Applied to the 

 downy young of Ptilopcudic or prceco- 

 i-iol birds. 



PUNCTATE, a. Dotted. 



PUPIL, n. The central black (or dark 

 blue) spot or disk of the eye, enclosed 

 within the iris. 



PYGOPODES, n. A group of swimming 

 birds, containing the families Podi- 

 cipididce, Colymbidm and Alcidee, dis- 

 tinguished by the extreme posterior 

 position of the legs. 



PYGOPODOUS, a. Pertaining to or hav- 

 ing the character of the Pyyopodes. 



PYRIFORM, a. Pear shaped. 



Q. 



QUILL, n. As generally used, one of the 

 primary remiges; and perhaps best so 

 restricted. 



QUINARY, a. Consisting of or arranged 

 by fives. The quinary system of classi- 

 fication, formerly much in vogue, pre- 

 sumed five types for each natural 

 group; that is, five species to a genus, 

 five genera to a family, etc. 



QUINCUXX, n. A set of five, arranged 

 thus: v 



E. 



RACE, n. A nascent species or "form," 

 which on account of the existence of 

 intermediate specimens cannot be 

 considered a species, no matter how 

 great a degree of differentiation may 

 have been reached. Races are distin- 

 guished as geographical and local, 

 according as to whether they occupy 

 extensive or limited areas of country. 

 Geographical races are usually cor- 

 relative with definite geographical 

 areas, being, in fact, the expression of 

 geographical variation. 



RADIAL, a. Pertaining to the radius. 



RADII, n. The barbs of a perfect 

 feather. 



RADII ACCESSOR!!, n. The barbs of a 

 supplementary feather or at'tershaft. 



RADIOLI, n. The barbs of the radii or 

 barbules. 



RADIOLI ACCESSORII, n. The barbules 

 of a supplementary plume or after- 

 shaft. 



RADIUS, n. The outer bone of forearm. 



RAMUS, n. A branch or fork, as the 

 ramus of the lower mandible; that is, 

 mandibular ramus. 



RAPTORES, n. An artificial group of 

 birds, including the so-called "Birds 

 of Prey." 



RAPTORIAL, a. Pertaining to the birds 

 of prey, or having the characteristics 

 of the Raptures. 



RASOUES, n. The name of the Gallinr 

 acece in some of the older classifica- 

 tions. 



RASORIAL, a. Pertaining to the Rasores 

 or scratching birds. 



RATIT.E, n. A group of birds, more or 

 less artificial, including those with a 

 flat or unkeeled sternum, and com- 

 prising the orders Struthiones and 

 Apteryges, all other existing birds be- 

 ing included in the Carinatie, which, 

 have ;\ keeled sternum. 



