546 



GLOSSARY. 



Immature', a. Not having yet assumed final 

 size, shape, color, or other couditions of the 

 adult. 



Imper'forate, a. Not pieiced through ; also 

 closed up (said chieHy of the nostrils). 



Implacen'ial, a. Having uo placenta. Birds 

 are implacental. 



Incised', a. Cut out ; cut away. 



iNCPBA'Tiox, n. Act of setting on eggs to hatch 

 them. 



I.NUUM'BENT, a. Depressed or bending down 

 upon something ; laid at full length ; chiefly 

 Siiid of the hmd-toe when its whole length 

 rests on the ground or oIIkt support, owing 

 to Its low insertion on the level of the rest 

 (IA\.) 



iN'cus, a A l>one of the inner ear of mam- 

 malia, held by high authority to be homolo- 

 gous with the OS quadratum of birds (which 

 see). See also Malleu.s. 

 In'dex, n. The i)rin.-ii,al digit of the wing is 

 often so called, but is really homologous with 

 the third or middle linger of mammals ; the 

 polle.x or so-called thumb of birds being the 

 homologiie of the mammalian index. 

 IN'0OLES, n. Natural disposition. 

 iNDtJMEX'TUM, n. Covering of bh-ds ; the pti- 



losis or plumage. (142.) 

 In'fra- (in composUimi). Below ; under • op- 

 posite of supra-. It is in part sjTionvmoiis 

 with s-«6-, but refers only to position,' whUe 

 sub- IS of more extensive application 

 Inframax'illary, n. The under jaw bone, 



or mandible. 

 Infraor'bital, a. Below the eve-socket. 

 Ixfcndieu'lifokm, a. Funnel-shaped. 

 I.\PUNniB'uLrM, n. Funnel; name of several 



ditferent organs. 

 Inges'ta, n. pi. Things eaten ; contents of crop 



or stomach. Opposed to eyi^sta. 

 IXGLu'viEs, n. Crop or craw. Also used sy- 

 nonymously with chin. 

 1-N'guex, n. The groin : whence the adj. in- 

 guinal. (Little used.) 

 Ix'guixal, a. Pertaining to the groin. 

 IN-.VER Toe, n. (127.) In most birds the sec- 

 ond IS the inner anterior toe ; in the trogons, 

 the third or middle toe becomes inner anterior 

 by reversion of the second, which is then in- 

 ner posterior. In a few exotic kingfishers, 

 the second or inner anteiior is rudimentary 

 or wanting. In several birds the hallux or 

 hrst or hinder toe is reversed, and becomes 

 inner autenor. But in any position the inner 

 «o«, pioperly speaking, is the second, that one 

 Willi only three joints. 

 I-N-xom'ina"te (hone), n. The pelvic bone, com- 

 posed of ilium, ischium, and pubis 

 IxoscuLA'Tio.N, n. Same as Ana.stomosis 



(which see). 

 I.xsEcnv'oRoi-s, a. Insect-eating. 



IN-TEG/L-MENT, n. A covering or enveloDe • 

 commonly, the skin. envelope , 



Inter- (in composUion). Between : among 

 iNTERARTic'fLAR, a. Between the joint!; in 



a joint ; as, xnlcrarticular cartilage 

 iNTERCos'TAL a. Between two rib?;' as, inter- 

 costal muscle, artery vein 

 I.NTERMA.x'.Li.ARY (bSne), n. ' Same as Premax- 



li.LARV (which see). 

 I.N'TERNoi,E, n. Any bone of a finger or toe. 

 NTEiioR BITAI, o. 15etween the eve-sockets. 

 I l.NTERRA MAL, a. Between the forks or rami 

 ot the lower jaw. 

 iNTERKUM-'ED, a. Discontinuous ; broken up 

 INTEKSCAPIL'H-M or Intersoar'llim, n. Re<non 

 of the U|)per back between the shoulders (lig ) 

 I.NTERscAi-'ULAR, a. Between the shoulders, 

 itie plural, lulcrscnpulars or interscapula- 

 nes, IS used to denote the feathers of such 

 region collectively. 

 LwAG'iXATE, a. Sheathed. 

 I-NVER'TEBRATE, a. or 11. Having no back- 

 bone ; an animal without a backbone. Op- 

 posed to vcrlebrate. 

 I'RIAN Irid'ia-N, a. Pertaining to the iris. 

 IRIDES'CE.VT, a. Glittering witli many colors, 



which change in diflTerent lights. 

 I'ris, n. Circular muscular curtain suspended 

 perpendicularly in the eye between the aque- 

 ous and vitreous chambers, having a hole in 

 the centre (the pupil). It is of all colors in 

 birds. 

 IscHiAT'ic, a. Pertaining to the ischium. 

 I.s'cuirM, n. One of the pehic bones, the hin- 



demiost. 

 -I.SH. A .suffix, forming an adjective, usimUij 

 denoting possession of a quality in less de- 

 gree ; especiaUy used for colors ; as, blackish 

 not quite black, etc. ' 



Isth'mis, n. Neck or narrow strip connecting 

 tw-o larger portions of same region, patch of 

 color, etc. 



J. 



Jaw, n. See Maxili.a, JLixdible. 

 Jeju'nl-m, n. Portion of intestine between 



duodenum and ileum (not definite, and little 



used). 

 Ju'gal, a. Pertaining to the zygoma. 

 Ju'gal (bone), n. Same as malar bone. 

 Jr'dLAR, a. Pertaining to the jugulum. 

 Ju'Grr.UM, n. Lower throat ; lower foreneck 



(53.) 

 JuNCTl-'RA, n. Articulation ; joint. 



IxsEsso'RES, n. pi. Perching-birds ; an order 



now becoming obsolete. 

 IXSESSO'RIAL, a. lielating to i)erching-bir,is. 

 1-Nsis'TE.NT, «. Said of the hind toe, when its 



base IS .so elevated that the tin only touches 



the giound. (130.) 

 Ix'sT.xcT, n. Imperfect reason; the faculty 



of^ doing the right thing without knowing 



K. 



Keei,, ?i. Same as GuXYs (which see). (22.) 

 KxKE, )(. Femoro-tibial articulation. (N. B. 

 The heel-joint, siiffmqo, or tibio-mctatarsal 

 articulation, is often improperly called hiee.) 

 (102.) I r . , 



L. 



La'bfi., n. Card, ticket, or similar slip of 

 paper, parchment, etc., aliixed to an object, 

 giving written information respecting it. 



