1901.] THE MUSCLES OF THE UNGULATA. (>97 



(olecranal), and - (4) radial origins. Iii the Horse (56, 58) there 

 are condylar, radial, and olecranal heads, and the insertion of 

 course is only into the medius. 



The Rhinoceros (63) apparently has two condylar heads, one of 

 which Beddard and Treves call palmaris longus. The insertion: is 

 into all three digits. 



In the Hyrax (68) we found one condylar head rising in common 

 with the flexor sublimis and probably corresponding to the con- 

 dylo-radialis, there were also radial and ulnar heads. The inser- 

 tion (67, 6S) is into all fonr digits. 



In the Elephant (77, 78) there are radio-condylar, radial, and. 

 ulnar heads and the insertion is into all five digits (74). Ander- 

 son (XXVII.) describes a radio-carpeus rising from the anterior 

 surface of the radius, external to the attachment of the pronator 

 radii teres, and corresponding to the origin of the flexor longus 

 pollicis in Man ; it is inserted into the anterior annular ligament 

 and is apparently also present as the muscle marked ^ in Cuvier 

 and Laurillard's plate (I.). . 



We are able to give the following details of the nerve-supply. 

 In the Pig (11) and Peccary (14) the condylo-radialis, condylo- 

 centralis, and radialis slips are supplied entirely by the median, 

 the ulnaris entirely- by the ulnar, while the condylo-ulnaris gets a 

 twig from both the median and ulnar. 



In the Brocket (27) the condylo-radialis and- radialis are sap-. 

 plied by the median, the ulnaris by the ulnar, and the condylo- 

 nlnaris by the median and ulnar. 



In the Dniker-bok (49) the condylo-i'adial and condylo^entraL 

 heads were supplied by the median, the ulnaris - by the ulnar, 

 while the condylo-ulnar was entirely supplied by the ulnar. 



Lumhricales. — ■In the Hippopotamus (1) there was only one 

 lurabrical rising from the annularis tendon. In the Suidse (4, 6, 

 11) one from the index tendon of the flexor profundus. In the 

 Tragulidse, Kinberg's Chevrotaiu (20) had one evidently belonging 

 to the annularis, but in Chatin's Water-Chevrotain (XI.) the index 

 one was apparently alone present. In the Cervidae (25, 26, 27, 28) 

 and the Bovidtc (33, 35, 36, 37, 38, 40, 43, 49) no lumbricals are 

 present. In tlie Tapiridas (54, 55) there are three, for the index,, 

 medius, and annularis. In the Equidae (5(5, 57, 58) two, one from 

 each side of the single profundus tendon, corresponding- therefore 

 to medius and annularis. . 



In the Ehinoceros there are none accoi'diug to Beddard and 

 Treves (XX.). 



In the Hyrax (67, 68) the medius. and annulaiis are present, 

 but Meckel failed to find any in his specimen (71) (see text-tig. 91 j. 



In the -Elephant (74) thei-e were four, but in (73). and (78) the 

 ulnar one was wanting.: 



Pronator quadrattis. — The only ungulate in which we have 

 been able to find any notice of this muscle is the Tapir (55), in 

 Mhich Murie says that it occupies the lower quarter of the 

 forearm. 



