310 Miscellaneous. 
MISCELLANEOUS. 
Descriptions of new species of Birds of the Family Caprimulgide. 
By Joun Cassin. 
Genus Hypropsauis, Wagler, Isis 1832, page 1222. 
1. Hydropsalis limbatus, nobis. 
Adult 3? Form.—Wings long, pointed, with the shafts of the 
primaries strong and slightly curved ; first primary longest, second 
and third deeply sinuated on their outer webs, and, with the first, 
having their external margins distinctly serrated. Tail excessively 
long, graduated, the two external feathers surpassing the next by 
about 14 inches ; others regularly receding to the two in the middle 
which are shortest. 'Tarsi feathered slightly below the knee. Webs 
of outer tail-feathers narrow. 
Dimensions.—Total length of skin, from the tip of bill to end of 
tail, about 2 feet 5 inches ; of the wing 9 inches ; of the tail to end of 
external feathers about 22 inches ; length of two middle tail-feathers 
about 3 inches. 
Colours.—Upper surface of the head, body and wing-coverts 
brownish black, spotted and sparingly lined with pale fulvous. The 
wing-coverts with round spots at their points of the same colour. 
Superciliary region grayish white, every feather having narrow 
irregular lines of black. Hind-neck with a semi-collar of bright 
reddish fulvous. Under the eye an irregular whitish stripe. 
Scapular feathers with their external webs black, with a few curved 
lines of fulvous remote from the tip, which is broadly margined with 
black ; internal webs of scapulars nearly white, irregularly striped and 
spotted with black ; other scapulars nearly black, with pale fulvous 
margins externally. 
Throat before with a white collar. Chin, breast and belly irregularly 
mixed with brownish black and pale yellowish white, the latter colour 
assuming upon the breast the form of semicircular segments and 
lunular spots upon the tips of the feathers, and the former (blackish) 
disposed to form very irregular narrow bands upon the flanks and 
belly ; ventral region and under tail-coverts paler. 
Quills brownish black, having upon their internal webs four or five 
narrow transverse lines of pale yellowish white, conspicuous when 
viewed from below; and upon their external webs (except the first) 
several rounded or irregular-shaped spots of the same colour. Second 
and third quills where sinuated upon their outer webs, with a very 
slight margin of white. Secondaries obscurely tipped with whitish. 
First, second and third tail-feathers throughout their whole length 
with their outer webs and about two-thirds of their inner webs brownish 
black ; other portion of the inner webs, being the internal margin of 
those feathers, white ; a few bright fulvous spots near the base upon 
the outer webs. Fourth and fifth tail-feathers with similar colours, 
but more broadly bordered with white, which upon those, as well as 
the third, is sparingly spotted with brownish. 
Young $? Form.—Tail deeply emarginate, but not excessively 
long ; external feathers exceeding the next by about 1} inch only. 
