532 Mr. J. Wood on Variations in Human Myology. [May 33, 



markable by the additional presence in the fore leg of the same animal of 

 a somewhat fan-shaped muscle, connecting the epitrocJilea and the ole- 

 cranon. As far as the author is aware, this is also unrecorded hitherto. 

 It is entirely distinct from the inner head of the triceps, from which it is 

 separated by the ulnar nerve. Across the nerve this small muscle is 

 placed superficially. The same muscle was found by the author in a 

 human male subject (No. 7 of the Table of last year's series) as a distinct 

 muscular slip, arising from the back part of the epitrochlea, bridging 

 over the ulnar nerve, and separated by it from the triceps above, and by 

 a distinct areolar interval from the fascial arch which gives origin to 

 the flexor carpi ulnaris muscle below. A sketch of this muscle is given 

 in fig. 2 (a). It may be called the Anconeus epitrochlearis.''^ 



In two subjects were found abnormalities of the Trapezius (Nos. 4 & 

 13). The first was one of deficiency, the fibres of origin of the right 

 muscle reaching only as low as the tenth dorsal spine, and those of the 

 left only to the eighth. In the other the insertion of the muscle op- 

 posite to the scapular spine gave off a strong aponeurotic slip down and 

 outwards to the lower angle of the scapula. 



In a very muscular subject with many irregularities (No. 11) was a 

 curious arrangement connected with the fibres of the Flatysma just 

 below the chin. A superficial band of muscular fibres, an inch and a 

 half wide, arose on both sides from the mastoid process and parotid 

 fascia, and passed down and forwards, slightly narrowing and thickening, 

 to unite with its fellow just below the point of the chin. It crossed the 

 insertion of the masseter, the angle of the lower jaw, and the facial 

 artery, superficial to the " risorius Santorini," which was normal. 

 Kelch has described this variety (as seen in two subjects) by the name 

 of the Musculus menti accessorius (Beitrage, xx. S. 30). 



In one subject (No. 5) the anterior belly of the Digastric was double, 

 the inner abnormal one being attached to the median raphe, but not 

 decussating with its fellow. 



In a female (No. 17) was found the curious muscular slip given in 

 fig. 3 («), on the left side only. It is called by the author the Mylo- 

 glossus muscle. It arose tendinous from the inner border of the angle 

 of the lower jaw, behind and below the internal pterygoid, spreading 

 out down, inwards, and forwards, to be inserted into the fibres of the 

 tongue, between the stylo- and hyo-glossus muscles (Jb & e), joining^ 

 especially the latter. The facial artery passed deeper than the muscle, 

 and the border of the submaxillary gland overlapped it. Henle saw a 

 cylindrical muscle arising from the same place and joining the posterior 

 belly of the digastric (Muskellehre, S. 112). This is the nearest ap- 

 proach to the above muscle the author has found mentioned. 



The Stylo-pharyngeus was in one subject (No. 19) found doubled on 

 the right side. In another (No. 26) the Scalenus medius arose by a 

 thick band of fibres covering the intertransversalis from the transverse 



