GLOSSARY. 



r f r' 



000 



Rhizonych'ium, n. Terminal bone of a toe 

 hearing a claw. (122.) (Little used.) 



Rhom'B(1id, a. Lozenge-shaped. Name of a 

 muscle of the shoulder-blade. 



Ric'tus, n. Gape of the mouth. 



Ridge, 91. Culmen (which see). (20.) 



Ri'ma, n. Outline of a slit-like opening. 



Ri'ma Glot'tidis, 11. Opening of the glottis. 



Ri'ma Oris, n. Equivalent to Commissure 

 (which see). 



Ros'trum, n. Bill ; beak ; projecting forepart 

 of head of birds ; of two jaws, upper and 

 lower, consisting of a frame of certain bones 

 over which is stretched unfeathered skinny 

 or horny membrane, the rhamphotheca. (9.) 



Round'ed {tail), a. Having the central feathers 

 longest, the rest successively gi-adually and 

 slightly shorter. A tail is douhlc -rounded 

 when, with central feathers shorter than the 

 next, the rest are graduated as before. 



Ru'diment, 11. A beginning. 



Rudtmen'tary, a. Undeveloped ; imperfectly 

 elaborated ; existing only in its beginnings. 



Ruff, n. Set of lengthened or otherwise modi- 

 fied or peculiarly colored feathers around the 

 throat or whole neck. 



Ru'ga, 11. Ridge or raised fold ; wrinkle. 



Rugose' or Ru'gous, a. Wrinkled. 



Rump, n. Uropygium (which see). (60.) 



S. 



Sac'ral, a. Pertaining to the sacrum. 



Sac'rum, n. A compound bone of the spine, 

 composed of several anchylosed vertebrae of 

 the pelvic region, with which the iliac bones 

 are sutured. 



Sac'ro-coccyge'al, a. Pertaining to the sa- 

 crum considered as comprising also several 

 coccygeal vertebrse. 



Sag'ittate, a. Arrow-head shaped ; an elon- 

 gated cordate figure with pointed lobes. 



Sali'va, n. Spittle. 



S.\l'ivary Glands. Organs secreting saliva. 



Sal'tatory, a. Progressing by leaps. Op- 

 posed to ambulatory or gradient. 



San'guis, 11. Blood. 



Saphe'na, 11. Principal vein of the leg. 



Sarcolem'ma, 11. Same as myolcmma. 



Sartor'ius, a. Name of a certain muscle of 

 the leg. 



Saurop'sida, 11. A primary group of vertebrata, 

 comprising birds and reptiles. 



Sai^ru'r^, 11. pi. Name of a certain primary 

 group of Aves formed for the reception of the 

 A rchceopteryx. 



Scab'rous, a. Scabby ; scurfy ; scaly. Said of 

 a surface roughened as if in such manner. 



Scanso'rial, a. Capable of climbing, as a wood- 

 pecker. 



Scapholun'ar, 11. One of the carpals or wrist- 

 bones. 



ScAP'uLA, n. Shoulder-blado. 



ScAP'uLAR, a. Pertaining to the shotilder- 

 blade ; as, scapular region. 



ScAP'ULAR, n. Any feather of a series growing 

 on the pteryla humeralis, in an oblique line 

 across the humerus. Scapulars is generally 

 said, the plural designating tliese feathers 



collectively ; they are also called scapularies. 

 (80.) The scapulars lill up what would other- 

 wise be an interval between the inner border 

 of the wing and the body. Illiger's word, 

 pai'ajitertcm, seems to designate them, but is 

 also used in an entiiely diti'erent sense. 



Sca'pus, n. Entire stem of a feather ; calamus 

 -frhachis. (144.) 



Schizognath'ous, a. Having the palate bones 

 separated. 



ScHizoRHi'xAL, a. Having the nasal bones 

 separated. 



Sci'atic, 11. Same as ischiatic ; pertaining to 

 the ischia. 



Scis'sioN, n. A cutting apart ; fissuration. 



Scis'soR-SHAPED (tail), a. Deeply forficate. 



Sclerot'ic, 11. Dense opaque fibrous mem- 

 brane forming most of the eyeball. 



Scol'loped, a. Lobed. (137.) 



ScoLo'PAClNE, a. Snipe-like. 



Scro'tum, 11. Bag holding testicles. 



Scutel'late, a. Provided with scutella. 



Scutel'late T.\rsus. (110.) 



Scutkl'lvm, 11.; i^\. scutella. Scale. Anyone of 

 the divisions into which the podotheca may 

 be broken up by regular lines of impression ; 

 especially such divisions when large and in 

 regular vertical series ; various smaller divis- 

 ions being called reticulations. Scutella oc- 

 cur especially on the anterior face of the tar- 

 sus and to}) of the toes ; often also on the 

 back of the tarsus ; sometimes they completely 

 encircle the tarsus. When thus large, some 

 ornithologists call them scuta; then using 

 scutella for the smaller irregular reticula- 

 tions. Scutella are .sometimes obsolete. (Com- 

 monly, but erroneously, written scutcllce.) 

 (109.) 



Scu'tiform, a. Scalelike. 



Scu'tum, 11. ; pi. scuta. See Scutellum. 



Sec'ondary'' Cov'erts. The smaller wing- 

 feathers growing from the forearm and its re- 

 gion, overlying the bases of the secondary 

 quills. (89.) 



Sec'ondary Quills or Sec'ondakies. Quills 

 growing upon the forearm. 



Seg'ment, n. A portion specially distinguished. 

 The tarsus is a segment of the leg. 



Segmenta'tion, n. Division into parts. Par- 

 ticularly applied to a process which takes place 

 in the vitellus or yolk during incubation. 



Sel'la Tur'cica, n. A certain part of the sphe- 

 noid bone. 



Se'men, 11. The male fluid, containing sper- 

 matozoa. 



Semi- (in composition). Half. 



Semilu'nar, a. Crescentic. 



Semimembrano'sus, 11. A certain muscle of 

 the thigh. 



Sem'inal, a. Pertaining to the male genera- 

 tive fluid. 



Seminif'erous, a. Secreting or convepng se- 

 men. 



Semipal'mate, a. Half webbed ; ha\'ing a 

 basal membrane between the front toes not 

 reaching to their ends. 



Sem'iplume, 11. Feather with pennaceous stem 

 and plumulaceous web. 



Semitendino'sus, n. A certain muscle of the 

 thigh. 



