520 Mr. J. Wood on Variations in Human Myology. [June 18, 



muscle were connected with a distinct tendon, rather smaller than the normal 

 one, which, passing in the groove and sheath of the peroneus longus, was 

 implanted upon the outer margin of the cuboid bone behind its peroneal 

 groove. A. similar instance has been recorded by Macalister. It is of the 

 same character as the peroneus quartus of Otto, which was inserted into 

 the calcaneum. 



The peroneus quartus has been found twice in 70 subjects by the author. 

 Meckel describes it in the Kangaroo. In 1 male and 1 female the tendon 

 of the brevis was found, in both legs, to give off a shp of reinforcement 

 to that of the tertius. 



50. Peroneus quinti. — This variety, constituted usually, in the human 

 subject, by a slip of tendon from that of the peroneus brevis, given off 

 below the outer ankle and joining the extensor aponeurosis of the little toe, 

 was found in the male (No. 11) to have developed upon it a complete, 

 distinct, and fusiform muscular 



belly (fig. 10 a), exactly like Fig. 10 (Subject No. 11). 



that described in the author's ,i 

 paper of 1864, and also by Hal- ii| \ 



lett in his paper in the Edin- 

 burgh Medical and Surgical Uj 

 Journal of 1848. The pe- ij 

 roneus tertius (5) was present || 

 and normal, and the tendons of l|l 

 the extensor brevis digitorum 1 

 (c) complete. \ 

 In 7 males — 4 in both legs, 



1 in the right, and 2 in the left 

 only — the tendon of the pe- 

 7'oneus quinti was complete, 

 reaching to the extensor apo- 

 neurosis of the little toe. The 

 same was the case in 4 females, 



2 on both sides and 2 on the 

 left only. In 2 males in both 

 legs, and in 6 females, of which 

 4 were in both legs, 1 in the 

 right, and 1 in the left only, the tendon, after parting from the peroneus 

 brevis in the usual way, became spread out in front and lost upon the upper 

 border of the ffth metatarsal bone about its middle — an incomplete 

 arrangement, said by Mr. Davis to be found also in the Civet Cat (Journ. 

 of Anat. and Physiol. May 1868, p. 217). 



Out of 102 subjects, in the 68 males the complete muscle has been 

 found once, the complete tendon in 18, and the incomplete tendon in 5, 

 making 24 in the males. In the 34 females the complete tendon has been 

 found in 5, and the incomplete form in 8, making 13 in the females. This 

 gives about an equal average in the two sexes. 



