440 ` Transactions.— Zoology. 
pieces of the skeleton in the Hunterian Museum appears as one bone with- 
out any suture visible between them ; the two last 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 is, however, narrower and thinner than in Epiodon australe, in 
which that bone corresponds more with Berardius arnuaii. The coracoid is 
also shorter and stouter. The humerus to which the head is thoroughly 
anchylosed, 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 anchylosed, and do not call for any further remark. 
The carpus differs considerably from that of Berardius arnuaii, of 
which Professor Flower gives a figure in his paper on that Whale in the 
“Transactions of the Zoological Society,” 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 unoiform 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 Meso- 
plodon sowerbiensis of the Northern Hemisphere, whilst in the skeleton of 
Epiodon australe the magnum and trapezoid are also still separate bones. 
However, as this skeleton is derived from a very young animal, it may be 
possible that they unite in more aged individuals. 
EKTIHNPIYX. 
Notes on Skull B. 
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 
ambert, my informant, the animal was suckling a ealf at the time. The latter was, 
however, thought not worth preserving by the finder. The skull of the mother Whale 
was secured for the Canterbury Museum. Pl. XXVI., fig 1. 
From the following table of measurements it will appear that the Skull is a little 
larger in all its dimensions than the one deseribed 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 con- 
siderably broken, which proves that the animal made considerable struggles to regain 
deep water, during which, without doubt, it injured itself in the same manner as the 
Lyttelton Harbour specimen did. The skull under review is also derived from an aged 
individual, and with the exception that its rostrum is rather narrower than that of the 
Lyttelton Harbour specimen, it has otherwise somewhat larger proportions. 
The most marked difference, however, is in the form of the prefrontals. In this skull 
the premaxillaries are much more excavated, and stand 1:53 inches apart in the centre of 
the rostrum, 
