GREAT CAROLINA WREN. 



119 



The female differs from the male in being lighter above, tinged with grey 

 beneath, and in wanting the white tips of the wing-coverts. 



The roof of the mouth is flat, with two slight ridges on the palate, and a 

 prominent median line anteriorly, the posterior 

 aperture of the nares linear, 4 twelfths long, papil- 

 late; the tongue 7^ twelfths long, very slender, H 

 twelfths broad at the base, where it is emarginate 

 and papillate, channelled above, tapering to a rather 

 obtuse bristly and horny point. The width of the 

 mouth is 4 twelfths. The cesophagus, a b c, is 1 

 inch 9 twelfths long, 3 twelfths in width; the pro- 

 ventriculus, b c, 3i twelfths. The stomach, c d e, 

 is elliptical, a little compressed, 7-| twelfths long, 

 5J twelfths broad; its muscles moderate, the lower 

 very thin, the tendons rather large; the epithelium 

 tough, with large longitudinal rugae, and of a red- 

 dish-brown colour. The contents of the stomach 

 are insects and seeds. The intestine, efg h, is 5 

 inches 9 twelfths long, its width 1^ twelfths; the 

 cloaca,^', globular, 6 twelfths in width; the cceca, 

 i, 1|- twelfths long, and -J twelfth wide. 



The trachea is 1-|- inches long, considerably flat- 

 tened, scarcely 1 twelfth broad at its widest part, and 

 contracting to \ twelfth; the rings 58, with 2 addi- 

 tional dimidiate rings. The muscles as in all the singing birds, those of the 

 inferior larynx considerably developed. Bronchial half rings about 15. 



There is a pretty large oblong salivary gland in the usual place, opening 

 with a single duct into the fore part of the mouth. 



The Dwarf Buck-eye. 



iEscuixs Pavia, Willd. Sp. PL, vol. ii. p. 286. Pursch, Fl. Amer., vol. ii. p. 254.— 

 Heptandria Monogynia, Linn. — Acera, Juss. 



Leaves quinate, smooth, unequally serrated; racemes lax; generally with 

 ternate flowers; corollas tetrapetalous, their connivent claws of the length of 

 the calyx; stamens seven, shorter than the corolla. The flowers are scarlet. 



