386 Mr. J. Wood Varieties in Human Myology. [June 15, 



longior, and inserted by a long tendon into the base of the metacarpal of 

 the pollex, below and distinct from the extensor ossis metacarpi pollicis. 

 In this instance no slip was given to the abductor, as is sometimes the 

 case. The author had the satisfaction of showing this specimen to Pro- 

 fessor Sharpey, with the levator claviculee before described. Professors 

 Ellis and Huxley, and Messrs. Flower and Pettigrew of the Royal College 

 of Surgeons, also inspected it. It was not present on the right side, but 

 here a muscular connexion existed between the supinator longus and ex- 

 tensor carpi radialis longior. There was no palmaris longus on the left 

 side, and only a small one on the right. On the left side also the fourth 

 lumbricalis was absent. 



In the body of a fine young Negro, which was very carefully dissected 

 and observed, few departures from the ordinary muscular arrangement 

 were observed, and these were present only in the upper extremity. In 

 the left arm was a complex arrangement of the flexor sublimis digitorum. 

 Two large muscular slips from the coronoid origin of this muscle passed 

 to the tendons of the deeper muscles. The inner and more superficial ter- 

 minated in two long tendons, which passed separately under the anterior 

 annular ligament, and became blended in the middle of the palm with those 

 of the flexor profundus going to the fourth and fifth fingers. The outer 

 slip also divided (a little higher up) into two tendons. One of these joined, 

 in the middle of the forearm, that of the flexor pollicis longus; and the 

 other, after receiving a muscular head from the radius below the last-named 

 muscle, became connected in the palm with the perforating tendon of the 

 index, giving part origin to the first lumbricalis. Here were three ad- 

 ditional tendons intermediate between the flexor sublimis and profundus, 

 passing separately under the annular ligament. Additional tendons have 

 been before met with in this position in Europeans, but the author does 

 not remember to have met with them to the extent seen in this Negro. In 

 the same arm, the third lumbricalis joined the ulnar side of the middle 

 finger instead of the radial side of the ring-finger, which had no lumbricalis. 

 The interossei muscles were regular, that to the thumb (the first palmar of 

 Henle) was also present. All the palmares muscles were well developed, 

 as well as the plantares and the peroneus tertius. The latter was con- 

 nected at its origin (as is commonly found) more intimately with the exten- 

 sor tendons of the fourth and fifth toes, than these were with those of the 

 second and third. 



The arteria comes nervi mediant was very large, forming the greater 

 part of the superficial palmar arch, and supplying the thumb and index. 



In a well-formed tall adult Lascar, with a good cranial development, 

 features of an elevated type, and of a deep olive colour, the most careful 

 observation detected no further irregularity than an extensor proprius of 

 the middle finger on both sides, arising partly in common with the indi- 

 cator, and inserted into the common extensor aponeurosis. There was also 

 an increased differentiation of t\\e flexor sublimis diyitorum. 



