| OCR Text |
Show 1895.] ANATOMY OF CRYPTOPROCTA FEROX. 437 two parts ; in the Genet the " two parts are more separate." Finally, in Cryptoprocta the two parts are absolutely separate, save for an extremely minute tract at their origin. The two parts of the muscle are equi-sized. The part which arises from the tuberosity of the ischium is tendinous at origin and is inserted on to the tibia. The semitendinosus has the same double head of origin that characterizes the Genet and Civet, as is shown in the accompanying drawing, where the muscle is cut and reflected. The two parts join nearly halfway down femur, and there is, as Prof. Mivart remarks of the Genet, a slight connection with the tenuissimus. The biceps arises from the ischial tuberosity just below the semitendinosus ; the tenuissimus arises a little way in front of it. The two join as is shown in the illustration (woodcut, fig. 6). The gracilis is like that of the Cat. The sartorius was not double; it is very wide at insertion. In the quadriceps femoris complex ail four parts were well developed and distinct; the origin of the crurceus goes right up to the neck of the femur. An agitator caudce (see fig. 2, p. 431) is present in Cryptoprocta, as in the Genet but not in the Cat. It is inserted into the femur by a longish attachment in common with a slender slip which is detached from the second part of the gluteeus maximus (that part which is inserted on to the outer condyle of the femur). The gastrocnemius is only two-headed, the two heads arising, of course, from the two condyles of the femur ; from external condyle in common with outer head arises the plantaris. The soleus arises from the head of the fibula only. There are no special remarks to offer upon the flexors of the foot, except to state that the accessorius is as in the Civet, aud thus the flexor brevis digitorum is in one mass. The tibialis is not double, except just in the tendon for a short distance. The extensor communis digitorum goes to four digits; the tendons arise from the muscle in order of notation, but they all pass through the ligamentous loop at the ankle-joint together. The extensor longus hallucis is close to the tibialis; its muscle, however, extends below the muscle of the tibialis; it supplies the hallux only. All three peroneals are present with attachment as in the Cat. |
