184 DB. B. C. A. WnfDLE AXD MR. F. G. P.UlS01fS ON THE [Mar. 1, 



(2) The supinator longus is absent. 



(3) The caudo-femoralis (agitator caudae) is absent. 



(4) The ilio-tibialis (sartorius) is double. 



(5) The semitendiuosus has no caudal head. 



(6) There is no soleus. 



(7) There is no fleshy flexor brevis digitorum p?dis. 



(8) There is no accessorius pedis. 



The South-American Kiukajou (Cercoleples caudivolvidvus) is 

 an animal of which we have had the good fortune to dissect two 

 specimens. It is usually looked upon as a typical member of 

 the Procyonidse, but we have detected two important musteline 

 characteristics in its muscles and one which is distinctly ursine. 



Its Musteline tendencies are : — 



(1) The presence of the omo-hyoid. 



(2) The presence of a distinct rhomboideus profundus. 



Its Ursine characteristic is : — 

 (1) The presence of two heads to the flexor longus cubiti (biceps). 



The points characteristic of the Procyonidae are : — 



(1) The presence of two palmares longi. 



(2) The fusion of the two heads of the flexor carpi ulnaris. 



(3) The absence of a head from the angle of the scapula to the 



extensor longus cubiti (triceps). 



(4) The presence of the flexor brevis digitorum maniis. 



Other myological points of interest are : — 



(1) The pronator radii teres is inserted into the lower end of the 



radius (common to Ursidae, Procyonidae, and Mustelidae). 



(2) The supinator loiigus is present (common to Ursidse, Procy- 



onidae, and Mustelidae). 



(3) The caudo-femoralis (agitator caudae) is present (common to 



Procyonidae and Mustelidae). 



(4) The gluteus veutralis (quartus) is present and distinct (common 



to Ursidae and Mustelidae, not to other Procyonidae). 



(5) The Qio-tibialis (sartorius) is single (common to Ursidae, 



Procyonidae, and Mustelidae). 



(6) The semitendinosus has a caudal head (common to Procyonidae 



and Mustelidae), 



BiBLIOGEAPHT. 



I. MiTAET. — 'The Cat.' London, J. Murray, 1881. 

 II. SiEArs-DuECKHEiM. — ' Anatomic descriptive et com- 

 parative du Chat.' T. ii., 1845. 

 III. Haughton. — " Muscles of the Lion."' P. E. I. A. 



vol. ix. p. 85. 

 lY. Eoss.— " Feli^ jubata." P. E. I. A. ser. 2, vol. iii. 

 p. 23. 

 V. CuviEE & Latjbillaed. — "LaLionne." Planches de 

 Myologie, Pis. 143-155. 



