496 PROF. ST.-GEORGE MIVART ON THE ^LUROIDEA. [JuUC 6, 



tendinosus. In the HytBtia it descends at least to the middle of the 

 leg ' ; Dr. Watson says to the os calcis in Crocuta. 



The semitendinosus of the Genet (as also the Civet) has a delicate 

 head, which arises from the third caudal vertebra at the hinder end 

 of the caudal origin of the gluteus maximus, with which it is con- 

 terminous. This head joins the other part of the semitendinosus 

 about one third down the femur, and becomes slightly connected with 

 the tenuissimus. It is inserted as in the Cat, but the upper tendon 

 of its insertion is not so distinct. This muscle has no caudal origin 

 in Crocuta. 



The semimembranosus is in the Genet quite as in the Cat, save that 

 its two parts are more separate — separate for nearly the whole length 

 of the muscle. The part from the ramus of the ischium goes to the 

 femur ; that from its tuberosity to the tibia. In Crocuta it is 

 quite inseparable from the adductor magnus. 



Agitator caudce. — This muscle, which I did not observe in the Cat, 

 arises in the Civet from the first and second caudal vertebrse, and is 

 inserted into the back of the femur. In the Genet its origin blends 

 with the hinder end of the caudal origin of the gluteus maximus. 

 It is crossed by the sciatic nerve and goes to the lower third of the 

 femur (rather behind its outer margin), and extends down almost to 

 the external condyle. 



In the Genet and Civet there is a special sphincter of the scent- 

 glands. 



The sartorius is double in the Genet and, sometimes at least, in 

 the Civet". One part arises from above and behind the anterior 

 superior spine of the ihum and goes to the patella ; the other part 

 springs from below the first part, and is lost in the fascia on the 

 inner side of the knee. It is also double in Crocuta. 



The pectineus in the Genet is as in the Cat. It is large and 

 doiible at its insertion in the Civet ^. In Crocuta it goes from the 

 ilio-pectineal line to the middle of the linea aspera. 



The adductor mass of the Genet is substantially similar to that 

 of the Cat, though, as in the Civet, it may be divided into three parts. 

 One of these, the adductor primus, is attached to the semimem- 

 branosus *. Another, the adductor secundus, is very wide and short 

 and is separable into two layers. The third part, or adductor 

 longus, is attached halfway down the femur. In Crocuta there are two 

 adductor muscles, which both arise from the pubic arch, and which 

 are inserted, respectively, one into the internal condyle and internal 

 tuberosity of femur, and the other into the whole length of the 

 linea aspera and into the internal branch of its lower bifurcation. 



The quadriceps extensor of the Genet is as in the Cat, save that 

 the crureus takes origin along the whole length of the femur, up 

 to the neck of that bone. The crureus is not differentiated in Cro- 

 cuta, and the vasti are hardly separable. 



^ Cuvier'8 ' Planches,' pi. 131. 



^ Mr. Young, I. c. p. 174, describes it as single. 



3 P. Z. S. 1879, p. 102. 



* Not 80 in the Civet (Young, l. c. p. 174). 



