GLOSSARY OF TECHNICAL TEEMS. 



87 





I'ris, n. The (usually) colored circle of the eye surrounding the pupil. 



(Plate XII. fig. 11.) 

 Isabella-color (L. isabelli'nus), n. A light grayish cinnamon color, or 



light buffy brown. (Raw umber -f raw sienna + white.) (Plate 



III. fig. 23.) 

 Isopo'gonous, a. Having the two webs equal in breadth. 

 Isth'mus, n. A narrow strip, or neck, connecting two larger areas. 



J. 



Jug'ular (L. jugula'ris), a. Pertaining to the jugulum. 



Jug'ulum (L.), n. The lower throat or foreneck, immediately above the 



breast. It is a well-defined area in the Hawks, Vultures, Pigeons, 



Ducks, and some other groups. (Plate XL) 



K. 



Kid'ney-shaped (L. renifor'mis) , a. Somewhat heart-shaped, but without 

 the point, and broader than long. (See reniform, plate XIV. fig. 19.) 



Knee, n. Properly the femoro-tibial joint, concealed in most birds ; but 

 usually the tibio-metatarsal articulation, or keel, is so called. 



L. 



Lac'erate (L. lacera'tus); )a. Jagged, or slashed at the end or along 

 Lacin'iate (L. lacinia'tus), ] the edge. _ 



Lach'rymal (bone), n. A large bone bounding the orbit anteriorly and 



above ; it is especially well-developed in certain Falconidai. 

 Lacus'trine (L. lacus'tris), a. Lake-inhabiting. 

 Lake Red, n. A purplish red color, not so intense as crimson. (Medium 



tint of madder-carmine.) (Plate VII. fig. 2.) 

 Lamb'doid, a. L-shaped. 



Lamelliros'tral (L. lameUiros'tris), a. Having a lamellate bill. 

 Lamelliros'tres (L.), n. A group of birds embracing the Anatidce and 



Elamingoes, in which the bill is lamellate-edged. 



Lam'ina, ) ^ ^ n A thin p i ate or sca i e . 



Lamella, ) 



Lam'inate (L. lamina'tus) 1 ^ ^ Qr gcaled< 



Lam'ellate (L. lamella tus), ) 



Lan'ceolate (L. lanceola'tus) , a. Lance.shaped ; tapering gradually to 



a point at one end, and more abruptly at the other. (Plate XIV. 



fig. 12.) 



i 



