. Catalogue of the fossil birds in the British Museum (Natural History). ';. 215 Family APTERYGIDJj]. Skull with a loug and slender curved beak ; humerus very short; a hallux ; a deep extensor groove but no bridge to the tibio-tarsus ; a superior notch to the sternum. All the species comparatively small. The tarso-metatarsus (fig. 53) is comparatively short, with the anterior surface not grooved, the second trochlea shorter than the fourth, the third more or less pedunculated, and usually a perfoi'ation in the groove between the third and fourth. In the tibio-tarsus the extensor g
. Catalogue of the fossil birds in the British Museum (Natural History). ';. 215 Family APTERYGIDJj]. Skull with a loug and slender curved beak ; humerus very short; a hallux ; a deep extensor groove but no bridge to the tibio-tarsus ; a superior notch to the sternum. All the species comparatively small. The tarso-metatarsus (fig. 53) is comparatively short, with the anterior surface not grooved, the second trochlea shorter than the fourth, the third more or less pedunculated, and usually a perfoi'ation in the groove between the third and fourth. In the tibio-tarsus the extensor groove is very deep, and separated only by a thin ridge Fig. 52. N. Apteryx avsiralis.—Left side of the pelvis, ,J nat. size, il, ilimu ; is, ischium ; p', pubis ; p, pectiueal process of do. ; a, acetabulum. (^AJfer Marsh.) from the inner border of the bone ; and there is no distinct intercon- d3dar tubercle. The femur is slender, much curved forwards; with a narrow and deep distal anterior trochlea ; the popliteal depression is shallow, without pneumatic foramina ; and the summit- of the great trochanter is but slightly elevated above tne bead. In the pelvis (fig. 52) the preacctabular portion of the ilium is much longer than the postacctabular ; and the ischium and pubis are deflected below the axial line of the ilium ; the depth of the ischium greatly exceed- ing that of the pubis. The coracoid has a minute foramen. The sternum is wider than long, and has distinct coracoidai grooves, a deep superior notch, and widely separated and non-divergent lateral processes. The cervical vertebra) are Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original British Museum (Natural History). Department of Geology. [Birds]; Lydekker, Richard, 1848-1915. London
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Keywords: ., 1891, bookcentury1800, bookdecade1890, bookpublisherlondon, bookye
