1876.] DR. J. V. HAAST ON ZIPHIUS NOV.*>ZEALANDIJE. 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 arti- 

 culated in the Canterbury Museum, and which has been taken from 

 a full-grown but not aged male, the disks on both sides of the verte- 

 brse being not yet ankylosed, the sternum consists of only four seg- 

 ments. 



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 tbeir arti- 

 cular surfaces well ankylosed, and do not call for any further re- 

 mark. 



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. Tbey 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 may be pos- 

 sible 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 Mr. Gorham Lambert, my 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- 



