The sternum is puny and small as compared with the creature's size. It is clearly that of a bird not furnished with powerful wings, and is even much less elongated than in the Bittern, but the coracoidal bones are very long and slender. The wings also were short and feeble, the humerus being hardly as big as in _Butorides atricapilla_. It is conspicuously slenderer and shorter than in the Bittern. The main body of the bone is slightly curved on the outside, and the lower articular condyle is large and flattened. I have not been able to examine any bone of the "manus," but the metacarpal bone shows exactly the same proportions for the wing as does the humerus, as it also barely reaches the size of that of _Butorides atricapilla_. The measurements are as follows:-- _Skull._ Total length 154 mm. Length of upper mandible 94 " Width of upper mandible at base 22 " Width of interorbital region 22 " Space between the mastoid apophyses 40 " Width of skull at level of postorbital apophyses 40 " Length of lower mandible 147 " _Tarso-metatarsus._ Total length 95-162 mm. Width at proximal extremity 14 " Width at distal extremity 13.5-14 " Width of shaft 6.2-7 " _Tibio-tarsus._ Total length 140-210 mm. Width at distal extremity 12-13 " Width at proximal extremity 13-14 " Width of shaft 6-6.5 " {113} _Femur._ Total length 90-92 mm. Width of distal extremity 15-16 " Width of proximal extremity 14-16 " Width of shaft 6.2-7 " _Sternum._ Total length 64-88 mm. Width in front 35-48 " Width behind costal facets 26-36 " Width at posterior border 27-35 " _Coracoidals._ Total length 59-67 mm. Width at lower extremity 17-18 " _Humerus._ Total length 118-180 mm. Width of proximal extremity 20-27 " Width of distal extremity 16.5-24 " Width of shaft 7-11 " _Metacarpals._ Total length 62-98 mm. Width of proximal extremity 12-17 " Width of distal extremity 7-11 " "