1895.] AlfATOKY OP CErPTOPROCTA FEEOX. 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 tube- 

 rosity of the ischium is tendinous at origin and is inserted on to 

 the tibia. 



The semitendinosiis 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 sartoritis was not double; it is very wide at insertion. 



In the quadriceps femoris complex all 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 glutceus 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, and thus the 

 flexor hrevis digitoi~um, 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 halliicis 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. 



