1882.] PROF. ST.-GEORGE MIVART ON THE iELUROIDEA. 471 



25'3 (Proteles). Its least proportion in Felis is 20"8. Its least pro- 

 portion in the Viverridce is 138 {Viverricula), and its greatest is 

 22*0 (Suricata and Galidictis). 1 have found it equal to the humerus 

 in length in the Wild Cat and Fossa, and almost equal in Hemiga- 

 lidia. I have only found it absolutely longer than the humerus in 

 Eupleres and Crocuta. 



The radius and ulna are long and slender in Fossa, Galidictis, and 

 Eupleres, In Hemigalea the radius (which is a good deal bowed) 

 is furnished with a singular plate-like expansion towards and at the 

 ventral end of its outer or radial border. A more or less rudimen- 

 tary development of the process may occur also in Paradoxurus, and 

 a trace of it in Cryptoj)rocta. 



The olecranon may, as in Viverra civetta, be more bent post- 

 axiad than in most forms, and than even, relatively, in the Great 

 Cats. A remarkable process may be also developed from the ole- 

 cranon, extending mesiad. This is seen in Civetta, but attains its 

 maximum in Cryptoprocta, where it reminds one of the inflected man- 

 dibular angle of a marsupial. This is little developed in Hemigalea, 



Fig. 2. 



A. Distal end of dorsal surface of right radius and ulna of Hemigalea : p, plate- 

 like process. B. Distal end of tibia and fibula. 



which, however, has a plate-like process, or ridge, developed from 

 the middle of the distal fourth of the ventral surface of the ulna, 

 extending down to the root of the styloid process ; into this plate- 

 like ridge the supinator longus, pronator teres, and the (large) pro- 

 nator quadratus muscles are inserted. This ridge also exists in 

 Viverricula. 



The Manus. 



The greatest length of the manus (measured from the junction of 

 the radius and carpus to the end of the third digit), compared with 

 that of the spinej is 239 {Proteles), the least is 1 1*5 {Viverricula). 

 In Felis I have found it range from 17*0 to 22*0. The greatest rela- 

 tive length of the third metacarpal is 12'5 {Proteles), and the shortest 

 \s A'2 {Cynogale). The greatest relative length of the third digit 

 is 100 {Felis), and 95 {Suricata) ; the shortest is 5'2 {Viverra). 

 The relatively longest third ungual phalanx is 4 '5 {Suricata) ; the 

 sliortest is 1*3 {Viverra). 



The metacarpus is thus proportionally most elongated in Proteles 

 Proc. Zool. Soc — 1882, No. XXXII. 32 



