. Key to North American birds. Containing a concise account of every species of living and fossil bird at present known from the continent north of the Mexican and United States boundary, inclusive of Greenland and Lower California, with which are incorporated General ornithology: an outline of the structure and classification of birds; and Field ornithology, a manual of collecting, preparing, and preserving birds . this characterizes the whole orderSteganopodes (fig. 52). (6.) In the lobate foot, a paddle results notfrom connecting webs, but from a series of lohe,^ or flaps along thesides of
. Key to North American birds. Containing a concise account of every species of living and fossil bird at present known from the continent north of the Mexican and United States boundary, inclusive of Greenland and Lower California, with which are incorporated General ornithology: an outline of the structure and classification of birds; and Field ornithology, a manual of collecting, preparing, and preserving birds . this characterizes the whole orderSteganopodes (fig. 52). (6.) In the lobate foot, a paddle results notfrom connecting webs, but from a series of lohe,^ or flaps along thesides of the individual toes; as in the coots, grebes, phalaropes, andsun-birds {Heliornithidce). Lobatifin is usually associated with semi-palmation, as is well seen in the grebes {Podicipedidce). In the snipe-like phalaropes {Fhalaropodidce), lobation is present as a modificationof a foot otherwise quite cursorial. The most emphatic cases of loba-tion are those in which each joint of the toes has its own flap, witli a p _j _ j„(,iggji p^.^].free convex border; the membranes as a whole therefore present a scol- mation of Hydrochflklonloped outline (figs. 53, 53 bis). Such lobes are merely a development «/o?mi*-,• nat. size,of certain marginal fringes or jn-ocesses exhibited by many non-lobate or non-palmate , if the foot of some of the gallinules be examined in a fresh state, the toes will be seen to.
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectbirds, bookyear1896
