1865.] MYOLOGY OF HYRAX CAPENSIS. 343 
The lumbricales, instead of being absent, as Meckel* says, are 
very distinct, though only two in number (as are also those in the foot). 
One of these arises from the palmar surface of the broad tendon of 
the flexor profundus, between the origin of the tendons of the two 
inner digits, and is inserted into the proximal phalanx of the second 
digit at its outer side; the other arises between the deep tendons 
of the third and fourth digits, and is inserted into the inner side of 
the proximal phalanx of the fourth digit (fig.6, Z.£.). In the left 
foot, however, we found these two muscles to be inserted into the 
outer sides of the second and third digits. 
The pollex is not destitute of muscles, as Meckelt asserts, as it 
possesses at least two separate, though very small, muscular bun- 
dles ; but what they represent we cannot pretend to say (fig. 7, P.). 
The fifth digit possesses a large and strong abductor minimi digiti. 
This arises by a strong tendinous fascia from the outer side of the 
pisiform bone, and is inserted into the outer side of the proximal 
phalanx of the fifth digit (fig. 7, 4b. m.d.). 
Fig. 7. 
Fig. 7. Palmar interossei of the fore foot, and small muscles to first and fifth 
digits. P. Muscular fibres upon pollex. 4d. m.d. Abductor minimi 
digiti. J... The indicators point to the four pairs of interossei. 7.1. 
The first single interosseous muscle. J. 2. The second single interosseus. 
I.3. The third single interosseus. J.4. The fourth single interosseous 
muscle. 
Fig. 8. Same muscles, sole of hind foot. J. J. J. The three double pairs of inter- 
ossei. J.1. First single interosseous muscle. J. 2. Second single in- 
terosseus. J, 3. Third single interosseous muscle. J. 4. Fourth single 
interosseous muscle. 4b.0.m.g. Abductor ossis metacarpi quinti. 
There are four pairs of interossei covering the plantar surfaces of 
the metacarpal bones. They arise from the strong tendinous fascia 
which covers the proximal ends of the metacarpal bones beneath, 
* Loe. cit. p. 333. T Loe. cit. p. 347. 
