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Show 1894.] MAMMALIAN H A N D AND FOOT. 367 humerus and the ulna and is inserted into the pisiform and the fifth metacarpal bone. The extensor digit, long, (radialis subl. ?) goes to digits 3-5. The "extensor dig. minimi proprius" ends by three tendons on digits 3-5 (1st phalanx). The ext. indicis et pollicis comes from the distal end of the ulna. 4. VIVERRICULA MALACCENSIS. (Plate XXI. fig. 6.) Flexores. The "palmaris longus" arises (very broad) from the internal condyle (hum.) and ends by four tendons (connected with each other) on digits 2-5, some fibres going to the Pp. and to the neighbourhood of the Pm. As this muscle has two nerves (from the medianus and the ulnaris) it may perhaps be considered as formed by union of two palmares. On the wrist there are four little muscles :- Al) From the pisiform and the tendon of the ulnaris „ . . I internus to the ulnar border of the manus. . u nans. J ^ Fr0m the pisiform : C continue into one tendon, I which ends on the sheath v(3) From the Pp : 1 of the flexor longus on the [fifth digit. N. medianus: (4) From the Pp to the thumb. Underlying these four muscles there is a strong transverse ligament. ! The flexor dig. subl. has delicate and narrow tendons which are cleft and perforated by the following muscle. The flexor dig. prof, has very strong and broad tendons, which are connected with those of ^ the perforatus where they pass it. The radial part of the profundus goes to the pollex and index. II. L E G AND FOOT. a. MARSUPIALS. 1. DIDELPHYS MARSUPIALIS. (Plate XXI. figs. 1, 2.) a. Flexores. There are strong nerves and vessels running to the Ph. The gastrocnemius consists of two separate muscles arising from the inner and the outer condyle of the femur, joining each other only on the insertion on the calcaneum. The plantaris takes origin in common with the lateral gastrocnemius, runs down, crossing the tibial or inner gastrocnemius at an acute angle ; it is fixed on the calcaneum and ends in the " fascia " plantaris, the tendinous fibres going mostly to the Ph. |
