ANDEID&. | OSTEOLOGIA AVIUM. [Gruinz. 
Anticone, Reich, Bp. 
Torquata, Viell. 
Cranium with a very slight depression across the base of the bill; no depression over 
the upper surface, except a very slight one near the occiput, much rounded above. 
Orbital septum strong, with two foramina, the central one large, the upper one small, 
elongated. Occipital ridge not very prominent; a large ridge from the centre of it to 
the foramen magnum. Lacrymal bones large, projecting far backwards. Inter- 
articular bone very massive and strong. Palatine bones long, the lateral edges 
curved downwards, pointed posteriorly, flat and narrowed anteriorly ; bones formiug 
the bill strong; the lower edge of the inferior maxillary projecting backwards. 
Sternum elongated. Narrow keel, very thick on its inferior edge and curved 
anteriorly ; hollow and perforated by the trachea, which makes a convolution in its 
interior extended to the posterior margin of the sternum, which projects much forward 
beyond the junction of the furculum. Posterior margin widened laterally, and rounded 
on the outer angles; edge nearly entire. 
Pelvis similar to Ardea in shape ; foramina long. 
Ribs with the styliform process long. 
Furculum of moderate length. Rami flattened ; strongly anchylosed to the sternum, 
and much flattened transversely. 
Coracoids very broad at their junction with the sternum. 
Scapule flattened, very long, pointed, slightly bending downward. 
Leg bones the callineal process slight, continued nearly to the hind toe. 
Measurements. 
Tenths. Tenths. 
Length of humerus . . . . . 106 Breadth of anterior ‘eo 
dsenetheotana 20.) eee a0 marem of ditto sou 24 au) ee 
Length of metacarpus . . . . 950 Depthotiked | 2 ee Pee aes 
dsenethkot femur 7 =) =. y = 160 Iheneth of heads .. «°° 4, "820% 
Length of tibia . . . . . . 155 Breadth of head? .'4.) ©. « .. WOE 
Length of metatarsus . . . . 185 Length of pelvis . . ... . 90 
Rensth of stermum: o) 4p.) =) 690 Breadth of pelvisu = Eo Vee) ft 0 7b 
Breadth of posterior margin . . 24 
Illustrations. 
Suppt. 2, pl. 18. Details, pl. 18, A 
