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Show 1876.] DR. J. V. HAAST ON ZIPHIUS NOVJE-ZEALANDI^. 475 Prof. Flower, in his excellent Memoir on Berardius arnouxi, figures the sternum as consisting of five pieces; but it is evident that the fourth and fifth segments are portions of the same bone, although they from some cause have not ankylosed. In a skeleton belonging to the same species, which stands articulated in the Canterbury Museum, and which has been taken from a full-grown but not aged male, the disks on both sides of the vertebrae being not yet ankylosed, the sternum consists of only four segments. The fourth and fifth pieces of the skeleton in the Hunterian Museum appear as one bone without any suture visible between them, the last two articular facets standing close to each other on the side of the fourth segment. Pectoral limb. The scapula has the usual form peculiar to the Ziphioid Whales ; the acromion, however, is narrower and thinner than in Z. australis, in which that bone corresponds more with Berardius arnouxi. The coracoid is also shorter and stouter. The humerus, to which the head is thoroughly ankylosed, has a well-defined tuberosity for articulation with the strongly excavated glenoid fossa of the scapula, and on its lower posterior side a groove for the articulation of the ulna ; both ulna and radius have their articular surfaces well ankylosed, and do not call for any further remark. The carpus differs considerably from that of Berardius arnouxi, of which Professor Flower gives a figure, and with which the carpus of another specimen articulated in the Canterbury Museum fully agrees. Instead of being united in pairs, the scaphoid and lunar and the cuneiform and unciform are all distinct, and only the magnum and trapezoid are united into one bone. They agree in this respect with the same elements in the carpus of Mesoplodon sowerbiensis of the Northern Hemisphere, whilst in the skeleton of Ziphius australis the magnum and trapezoid are also still separate bones. However, as this skeleton is derived from a very young animal, it m a y be possible that they unite in more aged individuals. Notes on another Specimen. A female Whale of somewhat larger dimensions, belonging to the same species, was stranded about the middle of July 1873 in Akaroa Harbour. According to M r . Gorham Lambert, m y informant, the animal was suckling a calf at the time; the latter, however, was thought not worth preserving by the finder. The skull of the mother Whale was secured for the Canterbury Museum. From the following table of measurements it will appear that the skull is a little larger in all its dimensions than the one described previously, belonging to the skeleton in the Canterbury Museum. Although the point of the rostrum is quite entire, the point of the lower jaw was considerably broken, which proves that the animal made considerable struggles to regain deep water, during which with- |