_Syornis casuarinus_ Hutton, Trans. N.Z. Inst., XXIV, p. 133 (1892). _C. casuarinus_ is found in both Islands, and is abundant in the Middle Island. The type came from Waikowaiti. Habitat: New Zealand. Portions of one skeleton and two almost complete skeletons in Tring Museum; one of the latter from Kapua Swamps. {209} EMEUS REICHENBACH. The skull is very short and wide, with a blunt and slightly deflected rostrum, and a very small pneumatic foramen to the quadrate. The mandible is in the shape of a wide U, with a slightly inflected angle, and a large post-articular process. The symphysis is very wide and deeply excavated, with a broad and slightly prominent inferior ridge narrowing in front. The sternum resembles that of _Anomalopteryx_, but the pelvis is much wider and approaches that of _Pachyornis_. The tibio-tarsus and tarso-metatarsus are relatively shorter and thicker than in _Anomalopteryx_, but less stout than in _Pachyornis_; the distal extremity of the tibio-tarsus is not inflected. A hallux is present. The length of the tarso-metatarsus is considerably less than that of the femur, and than half that of the tibio-tarsus, its width at the middle of the shaft being rather more than one-fourth of its length. The vertebrae are of the type of _Anomalopteryx_. The species are larger than most of those of _Cela_ and _Anomalopteryx_. Additional cranial characters are that the skull usually has very broad and blunt paroccipital processes; there is no distinct supraoccipital prominence, and no well-marked depression upon the frontal aspect of the squamosal above the head of the quadrate. The basi-occipital tubercles are prominent, and give an arched posterior profile to this bone. The quadrate is elongated with a long anterior bar; the cavity of the squamosal for the reception of its head is inclined much more outwardly than in either of the other genera. Type of genus: _Emeus crassus_ (Owen). Number of species: 6. EMEUS CRASSUS (OWEN). _Dinornis crassus_ Owen, Trans. Zool. Soc. III, p. 307 (1846--partim). _Emeus crassus_ Reichenbach, Nat. Syst. der Vög., p. XXX (1850). _Syornis crassus_ Hutton, Trans. N.Z. Inst. XXIV, p. 132 (1892). This species has led to much confusion, owing to Professor Owen having associated with the real portions of _crassus_ in his possession bones of _elephantopus_, _ponderosus_ and _struthioides_. The type came from Waikouaiti. Habitat: Middle Island, New Zealand. Imperfect skeleton in Tring Museum. {210} EMEUS BOOTHI NOM. NOV. _Emeus_, Species [Alpha], Parker, Trans. Zool. Soc. XIII, p. 379 (1895), pl. XVI. Easily distinguished by the shorter and narrower beak. Type specimen--the skull found by Mr. R. S. Booth at Stag Point--now in Otago University Museum, figured as above. Habitat: Middle Island, New Zealand. EMEUS GRAVIPES LYD.