686 



4325. The skull of a not quite mature female Mangmta urinator. 



All the permanent teeth have been acquired, except the upper canines, the deciduous pre- 

 decessors of which are still retained ; the pulp-cavity of the milk-canine is exposed by the 

 absorption of the whole anterior half of the fang. Almost immediately behind this is the 



premolar^) 2, without any trace ofp 1 or of its socket. 



Purchased. 



Genus Ryztena. 

 Dental formula : i f^, c |, p g, m ^=36. 



4326. The skeleton of a Suricate (Eyzeena tetradactyla). 



The vertebral formula is: 7 cervical, 15 dorsal, 6 lumbar, 3 sacral, and 20 caudal; but 

 the extremity of the tail is wanting. The twelfth dorsal is that towards which the spines of 

 the other vertebrae converge. The humerus is perforated above the inner condyle. 



Mus. Brookes. 



4327. The skull of an immature female of the Suricate (Ryzana tetradactyla). 



The permanent incisors and true molars have come into place in both jaws. In the upper 

 jaw the crowns of p 2 and p 3 have protruded from their sockets, and p 4 is in place ; the 

 points of the permanent canines have also appeared, but the deciduous ones are retained. In 

 the lower jaw p 2 is in place, but the deciduous m 3 and m 4 are still retained : the points of 

 the permanent canines appear on the inner sides of the deciduous ones. There is no trace of 

 p\ or of its socket in either jaw. 



Purchased. 



Family Canida. 

 Dental formula :i g, c \=, p , m Ef=42. 



Genus Cams. 



4328. The skeleton of the Common Fox (Canis Fulpes). 



The vertebral formula is: 7 cervical, 13 dorsal, 7 lumbar, 3 sacral, and 22 caudal. The 

 transverse processes of the last cervical are imperforate. Nine pairs of ribs articulate di- 

 rectly with the sternum, which consists of eight bones and a xiphoid cartilage. The eleventh 

 dorsal is that towards which the spines of the other trunk-vertebrae converge. The anapo- 

 physes begin to be developed on the seventh dorsal, and are reduced to mere tubercles on the 

 third lumbar. The supraspinal part of the scapula is less deep than the infraspinal one ; the 

 upper contour of the bone shows two obtuse angles : the acromion is short and broad, par- 

 tially bent down, but not notched or bifid. The clavicular bones are not preserved. The 

 humerus is pierced between the condyles, but not above the inner condyle. The pollex is 

 shorter than the metacarpal of the index. There is a fabella behind each condyle of the 



