Tongue, trachea, and œsophagus, as in _Uppucerthia_. Proventriculus longer, and slightly contracted at its entrance into the gizzard, which is large, flattened, and muscular, more rounded than in _Opetiorhynchus_, lined with a rugose hardened coat, and filled with small seeds, and the remains of insects; intestines of small diameter, and furnished with two rudimentary cæca. Inches Length of œsophagus, including proventriculus 1¾ of gizzard ¾ Breadth of ditto ⅝ Length from gizzard to cæca 5 cæca to cloaca 1½ Sternum of nearly equal breadth, both posteriorly and anteriorly, but much narrowed in the middle, the portion to which the ribs are attached much elongated beyond their junction; posterior margin furnished with two deep fissures, slightly narrowed at their exit; keel deep, slightly rounded on its inferior edge, and much scolloped out anteriorly; pelvis broad and short, the os pubis projecting far backwards; the ischium terminating posteriorly in an acute process. Os furcatum thin, much arched, furnished with a flattened reflexed process at its junction with the sternum; the points of the rami bent forwards at their junction with the coracoids. Coracoids of moderate size and length, inserted deeply into the sternum; scapula of moderate size, broader near the extremity. lines Length of sternum 11 Breadth anteriorly 6¼ posteriorly 8¼ Depth of keel 4½ Length of pelvis 12 Width anteriorly 4½ posteriorly 11 Length from occiput to point of bill 19 Breadth of cranium 7½ Length of coracoids 8 No. of cervical vertebræ 12 dorsal ditto 7 sacral ditto 10 caudal ditto 7 ——— Total 36 ——— No. of true ribs 5 false ditto 2·1 ——— Total 8 UPPUCERTHIA DUMETORIA. _Geoff. & D’Orb._ (Female.)