GLOSSARY OF TECHNICAL TERMS. 



83 



Hallucal, a. Pertaining to the hallux, or hind toe. 



Hallux (L.), n. In birds possessing four toes, the hinder one is the 

 hallux, no known bird having four toes directed forwards. In some 

 birds, as certain Plovers, the Bustards (Otididce), the Slruthiones, etc., 

 the hallux or hind toe is wanting. In three-toed birds having two 

 toes in front and one behind, the hallux is usually the one wanting, the 

 hind toe being in reality the fourth (or outer) toe reversed. When 

 the toes are in pairs (two before and two behind), the hallux is usually 

 the inner of the hinder pair, the exception being in the Trogons 

 (Trogonidae). The hallux reaches its best development in the Passeres, 

 the Accipitres, Striges, and Rallidce, but more especially in the first, 

 in which it is usually as strong as if not stronger than the largest of 

 the anterior toes. (Plate XL) 



Ham'ulate (L. hamula'tus), a. Furnished with a small hook. 



Ham'ulus (L. ; pi. ham'uli),n. A small hook; sometimes applied to the 

 barbules or barbials of a feather, when hook-shaped. 



Hand-quills, n. The Primary quills, or primaries. 



Has'tate (L. hasta'tus), a. Shaped like a spear-head. (Plate XV. fig. 2.) 



Ha'zel (L. coryllin'us; avellin'us; avellan'eus), n. An orange-brown color 

 like the shell of a hazel-nut or filbert ; similar to chestnut, but with 

 less red and more yellow. ( Vermilion -f raw sienna + black.) (Plate 

 IV. fig. 12.) 



Heel (L. suffra'go ; calcaneus ; ta'lus), n. The upper posterior extremity 

 of the tarsus. (Plate XL) 



Heliotrope Pur'ple, n. A grayish purple color. (Violet madder-lake -f 

 sepia -f French blue + white.) (Plate VIII. fig. 18.) 



Hel'met (L. galea' lus), n. A naked shield or protuberance on the top or 

 fore part of the head. 



Hepatic (L. hepa'ticus), a. Pertaining to the liver ; hence, liver-colored. 



Herodio'nes (L.), n. A natural group of altricial waders, embracing the 

 Storks, Wood-Ibises, true Ibises, Spoonbills, Boatbills, and Herons. 



Herodio'nine, a. Pertaining to or partaking of the character of the 

 Herodiones. 



Her'ring-bone (markings), n. A series of transverse lines or bars con- 

 nected along the middle of a feather by a longitudinal stripe or line 

 of the same color. (Plate XV. fig. 15.) 



Heterodac'tylae (L. ), n. The name of a natural group of birds, including 

 only the Trogons. 



Heteroge'neous, a. Of dissimilar nature or miscellaneous character. 

 (Opposite of homogeneous.) 



Hex'agon, n. A figure of six sides. 



Hexag'onal (L. hexagona'lis), a. Having six sides. 



Hiber'nal (L. hiber'nus), a. Pertaining to winter. 



Hind-neck (L. cer'vix), n. (See plate XL) 



Hind-toe (L. hal'lux), n. The posterior toe or hallux (which see). (See 

 plate XI). 



Hir'sute {L. hirsu'tus), a. Hairy, or shaggy, as the foot of a Grouse. 



