1282 A GLIMPSE OF THE POST-TEETIARY AVIFAUN’A OF QUEENSLAND, 
entire absence of a tendon gi'oove or tunnel on the outer edge of 
the distal end. Its proportions and general appearance are those of 
a teal, its size about that of ..1. ^punctata. From this it diflfers as 
follows : — the head is longer in proportion to its bi’eadth, the 
notch between the intercondylar tuberosity and entocondylar 
concavity is deeper, the ectocnemial ridge less falcate in shape 
descending on to the shaft with a gentler curve, the distal 
half less attenuated, the tendinous groove on the outer edge 
obsolete, the distal orifice of the precondylar groove larger. 
Femur . — The cue to the identification of this bone, the proximal 
half of a left femur, is given by the unusual expansion forwards 
of the great trochanter beyond the line of the head and neck, 
giving an obliquity to its surface, as seen from above, almost 
characteristic of the Anseres. Among these it agrees nearly in size 
and proportions with A. punctata, from which it is distinguishable 
by the small size of the head, narrowness of the neck, and by the 
lower position and smaller extent of the ghitcei insertions. 
Uendrocygna validipinnis, n.sp. 
(PI. xxxiv. figs. 5a, 5b, 6.) 
Proximal half of left humerm . — -The pectoral process is low, and 
runs with a straight edge and gentle obliquity from the pectoral 
crest to the radial tubercle. This points away from the Rap- 
torial birds, diurnal or nocturnal, the perchers and kingfishers. 
The process is concave on its inner side ; in the parrots and 
]»igeons a slightly concave surface on this side is sometimes seen. 
The ulnar tubercle is low, contrasting with its elevation in the 
bustards, ibises, and plovers ; it is much expanded over a deeply 
excavated sub-tuberous fossa, and its sub-tuberous ridge sweeps 
1 lack wards to the shaft with a strong curve and a sharp edge, a 
form sufficing to distinguish it from the corresponding part in the 
herons, coots, and pelicans. From the grebes it is not so readily 
distingui.shed by a single character ; the mo.st obvious difference 
it presents is the shortness of its iiectoral crest, which in Fodiceps 
is continued forwards with a sliarp curved edge nearly to the 
radial tubercle. Analysis leaves only the Anseres among ter- 
restrial birds for comparison. The highest point of the pectoral 
