924 
U. S. P. R. R. EXP. AND SURVEYS—ZOOLOGY—GENERAL REPORT. 
Parus septentrionalis , Harris, p. 389.—Specimens from Fort Bridger, like all others from 
the Rocky mountains, show an unusual amount of white on the quills and tail, almost enough 
to constitute them distinct species. 
Parus meridionalis, Sclater, p. 392.—The specimen described is not one of the types, as 
stated ; these are in the British and Paris Museums. 
Paroides elaviceps, Baird, p. 400.—Fort Yuma. 
Family Dacnididae. —The discovery of Certhiola Jlaveola , on Indian Key, Florida, by Mr. 
Wurdemann, where it appears to he not rare, adds not only a species hut a family ( Dacnididae ) 
to the fauna of the United States. The genus has the following characters : 
Certhiola }—Bill nearly as long as the head, as high as broad at base, elongated, conical, 
very acute, and gently decurved from base to tip. Culmen uniformly convex ; gonys concave. 
No bristles at base of hill. Tail rounded, rather shorter than the wings. Tarsi longer than 
middle toe. Primaries, nine. 
Certhiola jlaveola, Sund. 2 —First primary about equal to sixth. Body above black ; chin, 
throat, and sides, ash grey ; belly, edge of wing, and rump, yellow. A white stripe from 
upper mandible over the eye as far as nape, and a black one below it from the commissure, 
through and below the eye. Outer webs of primaries white at base, forming a patch ; all 
narrowly edged with grey towards the tip. Crissum white; tail feathers black tipped with 
white, diminishing in amount from the outer feather inwards. Iris light blue ; bill and feet 
black. Length, 4.75; extent, 7.75; wing, 2.50. No. 10367. Indian Key, January 31, 1858. 
This species appears subject to considerable variation, the throat being sometimes much 
darker. Several allied species appear to exist, but this is probably the typical Certliia Jlaveola 
of Linnaeus. 
The genus Certhiola belongs to the family Dacnididae, characterized among Oscines, with a 
very few others, by the divided tongue. This in Certhiola has the branches bristle-like, divided 
at the ends into pencils. There are but nine primaries, as in Sylvicolidae. Other genera of the 
sub-family are Conirostrum, Dacnis, Coereha, and Diglossa. 
Chrysomitris pinus. —Spring specimens from Fort Bridger and Fort Tejon differ from spring 
specimens from Carlisle in having the streaks on the sides and belly darker and broader. 
Curvirostra Americana, Wils., p. 426.—There seems to be a general tendency in the western 
cross-bills from the Rocky mountains and the Pacific slope to have larger bills than the eastern, 
thus referring them to the Loxia raexicana of Strickland. 
Loxia mexicana, Strickland, p. 427, is described in his review of Monographic des Loxiens by 
Bonaparte and Schlegel, Jardine’s Contributions to Ornithology, 1851, 43. “ Colors as in L. 
americana. Length, 6.2 ; wing, 3.9 ; bill to base, .8; depth of bill at base, .4. Dab. Near 
city of Mexico.” 
Junco caniceps, Baird, p. 468.—A large collection of Junco from Fort Bridger embraces a 
number of J. caniceps, agreeing generally with the description given. One specimen, however, 
is remarkable in having the sides reddish as in oregonus, although with the dorsal features of 
caniceps. There is, however, a trace of reddish on the wing coverts, which assimilates it 
further to oregonus. I have little doubt that it is a hybrid between the two species. 
1 Certhiola, Sundevall, 1835. 
Certhia Jlaveola, Linn. Syst. Nat. I, 1766. 
Certhiola Jlaveola, “Sundevall, 1835.”— Gosse, Birds Jam. 1847, 84.—In. Illustrations, 1849, pi. xvi.— Reichenbach, 
leones, fig. 3825 
