1009 TYRANT—UMBRELLA-BIRD 
between them is deep seated.1 Nor is this all, for out of 
the 80 genera, or nearly, into which the Tyrannidw have been 
divided, a series of forms can be selected which find a kind of 
parallel to those found in the OscinES; and the genus J'yrannus, 
though that from which the Family is named, is by no means a 
fair representative of it; though it would be hard to say which 
genus should be so accounted. The birds of the genus Musci- 
saxicola have the habits and almost the appearance of WHEATEARS ; 
the genus Alectorurus calls to mind a WaAcTAIL; Luscarthmus may 
suggest a Titmouse, Elainca perhaps a Willow-WREN; but the 
greater number of forms have no analogous bird of the Old World 
with which they- can be compared ; and, while the combination of 
delicate beauty and peculiar external form possibly attains its 
utmost in the long-tailed Milvulus, the glory of the Family may be 
said to culminate in the king of King-birds, Musecivora regia, and its 
three allied species. 
U 
ULNA, the more curved and stouter of the two bones of the 
forearm (the other being the RADIUS, p. 762). Its proximal end 
forms the OLECRANON (p. 654) process, and its distal end articulates 
with two bones of the carpus (p. 77). The attachment of the 
CUBITAL remiges (p. 118) often causes rugosities on its dorsal 
surface. (See SKELETON, p. 859.) 
UMBRE, Pennant’s rendering in 1773 (Gen. B. p. 44) of Bris- 
son’s Ombrette (cf. HAMMER-HEAD, p. 405, and STORK, p. 920). 
UMBRELLA-BIRD,? the Cephalopterus ornatus of Geoffroy-St. 
Hilaire (Ann. Mus. xiii. p. 228, pl. 15) the “ Umbrella’d Chatterer ” of 
Shaw (Wat. Misc. xxi. pl. 897), so called from the remarkable crest 
of feathers it wears, the shafts of which, when it is displayed, says 
1 This is not the place to dwell upon the essential nature of the difference ; 
but two easy modes of discriminating them externally may be mentioned. All 
the Lantide and Muscicapide have but nine primary quills in their wings, 
and their tarsi are covered with scales in front only; while in the 7yrannidz 
there are ten primaries, and the tarsal scales extend the whole way round. The 
more recondite distinction in the structure of the trachea seems to have been 
first detected by Macgillivray, who wrote the anatomical descriptions published 
in 1839 by Audubon (Orn. Biog. v. pp. 421, 422); but its value was not 
appreciated till the publication of Johannes Miiller’s celebrated treatise on the 
vocal organs of PAssprEsS (Abh. k. Ak. Berlin, 1845, pp. 321-405). 
* I find this name first in print, Proc. Zool, Soc. 1850, p. 91; but Gould 
there uses it for the bird as being ‘‘commonly so called.” In 1836 Swainson 
(Classif. B. i, p. 41) likened its crest to an umbrella. 
