GLOSSARY. 



559 



Tylar' I, n. pi. Pads under the toes. (123.) 



TyM'p.A.Nlf: (6OTi«), a. forii. Same as Os Quad r.\- 

 TUM (which see). 



TYM'PAsrM, n. Ear-drum. Also, the naked 

 inflatable air-sacs ou the sides of the neck 

 of gi-ouse, an enlargement of the ordinary 

 cervical reservoirs of air which communicate 

 with the bronchi. 



Type, n. Way ; plan ; mode. Also, sign or 

 symbol. The lijpc, ov typical form, of a group 

 is that which exhibits a given set of charac- 

 ters most perfectly. But the type of a genus 

 is usually the species, if any, from which the 

 generic characters were especially drawn up, 

 without reference to such qualification ; while, 

 furthermore, the type of a species, in cuirent 

 acceptation, is merely the specimen from which 

 the species was originally described, even 

 though it may ver^' inadequately represent 

 such species. 



Typ'ical, a. Of most usual structure ; adher- 

 ing strictly to a given plan of structure. (But 

 compare Type.) 



U. 



Ul'x.a., n. Inner or posterior bone of forearm. 



Ul'xab, a. Pertaining to the ulna. 



Umbii.'ic.\l, a. Kelating to the umbilicus. 



U-MEIl'ic.\TE, a. Pitted, as if with an umbilicus. 



L'MBlLi'ctTS, 11. Navel. Pitted scar, indicating 

 point of entrance of placental vessels into the 

 foetus. Also, any similar pit or depression, 

 as that on the scape of a feather at junction 

 of rhachis and calamus. 



Unap.med Toe. Toe bearing no claw. See 

 DiGrru.s JIuticus. (133.) 



Ux'ciFORM, a. Hooked. 



Cndep. .Iaw. See JIandibulum. 



Un'dep. Pap.ts. See G.\str.eum. 



Under Tail-coveuts. (13.) See Crissum. 



Under Wixg-coveuts. (84.) See Tectrices. 



Uxdul.^'tiox, j;. Wavy color-marks. 



Unguic'ulate, a. Clawed. 



Unguis, n.; pi. ungues. Claw. 



Unip'arous, a. Producing but one young. 

 Same as inonotokous. 



Upper B.\ck. (58.) See Interscapilium. 



Upper Jaw. (10.) See Maxill.v 



Upper P.\.rts. (5.) See Not^u.m. 



Upper Tail-coverts. (72.) See Calypteria. 



Upper Wing-coverts. (84.) See Tectrices. 



UR-t'fM, )i. Hinder half of a bird. (S.) (Lit- 

 tle used.) 



Ure'a, n. A certain component of urine. 



Ure'ter, h. Tube conveying urine from kid- 

 ney to cloaca. 



Ure'thr.\, 11. Groove in penis for direction of 

 the discharge. 



U'rinary Bl.\ddeu, n. A certain compart- 

 ment of the cloaca, in some birds, is so named. 



U'rine, n. Liquid excretion of the kidneys, in 

 birds voided more or less nuxed with the faeces. 



Uro-gen'it.\l or Gen'ito-u'rinary', a. Said 

 of organs common to the two offices implied 

 in tlie words, or of such organs regarded as 

 associate parts. 



Ubohy'al, n. Median backward process of the 

 hyoid bone. 



Uroptg'iitm, n. Rump. (60.) 



U'terus, m. Womb. Wanting in birds; but a 

 lower tract of the oviduct where the eggshell 

 is formed has been loosely so called. 



Vact'ity, n. Deficiency in a part ; as, a vacu- 

 ity in the bony jialate. 



V.^gi'na, n. Any sheath, in general. Particu- 

 larly, the female sexual passage. In birds the 

 lowermost tract of the oviduct is sometimes 

 loosely so called. 



Vane, n. (151.) See Vexillum. 



Variety, n. A nascent species. Practically, 

 the tenn designates a set of objects incom- 

 pletely distinguished from others of the same 

 species, by reason of slightness of the differ- 

 ence, or presence of connecting links. 



Vas'culak, a. Permeated with bloodvessels. 

 Also equivalent to circulatory; as, the vascu- 

 lar system. 



Vas Def'eren's, n. Tube conveying semen from 

 testes to cloaca. 



V.A.s'Trs, a. for n. A certain muscle of the thigh. 



Vein, n. Vessel conveying blood from the 

 capillaries to the heart. Artery carries blood 

 from the heart. 



Ve'n^ C.\'v.e, n. pi. Large veins pouiing blood 

 from the system into the heart. 



Ve'nous, a. Pertaining to a vein ; as, veiious 

 blood, the venous system. 



Ven'ter, n. Lower belly. (Not well distin- 

 guished from abdomen, and little used.) (65.) 



Ven'trad, a. Towards the belly. 



Ven'tral, a. Pertaining to the belly. 



Vex'tricle, 11. Chamber of the heart, right or 

 left, whence issue the pulmonary arteries and 

 the aorta. Compare Auricle. Also, a cavity 

 of the cerebrum. 



Ven'tricous, a. Swollen ; bulbous. 



Ventric'ulus Bulbo'sus, 11. Sa.me sis gigerium. 



Ventric'ulus Succenturi.Vtus, n. Same as 

 proventriculus. 



Vermicula'tion, n. A^ery fine crosswise mark- 

 ing. 



Ver'miform, a. Shaped like a worm ; as, a 

 woodpecker's tongue. Lumbriciform is the 

 same. 



Ver'n.il, a. Relating to the spring. 



Verru'cous, a. Warty. 



Ver'satile, to. Reversible ; susceptible of 

 turning either way. 



Vertebra, to. ; pi. vertebra;. Any bone of the 

 spine ; any one of the backbones. 



Ver'tebral, a. Pertaining to the backbone. 



Vertebr.^rte'rial (canal), a. for n. Passage for 

 an artery through several cervical vertebrffi. 



Ver'tebbate, a. Having a backbone ; also, 

 used substantively for an animal with a back- 

 bone. 



Ver'tex, to. Crown ; highest central portion 

 of pileus. 



Vescic'ula Semina'li.?, to. A .structure, im- 

 perfect or wanting in birds, for storage of se- 

 men. 



Vesti'ttts, a. or to. Clothed, i. e. feathered. 

 Clothing, i. e. plumage ; as, vestitus nujitialis, 

 breeding plumage. 



