1882.] PROF. ST. -GEORGE MIVART ON THE ^LUROIDEA. 497 



The psoas magnus aud iliacus are as in the Cat. 



The psoas parvus arises from the third, fourth, and fifth lumbar 

 vertebrae, and (as in the Civet) is inserted into the pelvis by a very 

 strong tendon. 



The pyriformis, gemelli, quadratus lumborutn, quadratus femoris, 

 and the obturators are as in the Cat. 



A muscle which I did not notice in the Cat exists in the Civet : it 

 arises in front of and below a very distinct antero-posterior ridge on 

 the dorsum of the ilium. It is called gluteus quartus by Professor 

 Macalister. 



Another muscle, which answers to my gluteus quartus in the Cat, 

 is similarly conditioned to that of the Cat, both in Genetta and 

 Viverra. It also exists in Crocuta. This muscle is called gluteus 

 quintus by Professor Macalister. 



The plantaris arises, in the Genet, only from the external condyle 

 of the femur and the adjacent sesamoid bone, and is (as also in the 

 Civet) only slightly united with the external head of the gastro- 

 cnemius. It is inserted as usual. 



The gastrocnemius of the Genet has only three heads of origin — 

 one from each femoral condyle aud adjacent sesamoid, and one 

 (mainly aponeurotic at its origin) from the fibula. There is no 

 origin from the ligamentum patellae. The insertion is as usual. 



The soleus of the Civet is like that of the Cat. In the Genet it 

 takes origin from the upper half of the fibula. Its insertion is as 

 usual. It is wanting in Hycena striata and in Crocuta. 



The popliteus and tibialis anticus are both as in the Cat, and 

 the same is the case with the Civet. In Crocuta it is double half- 

 way down, the tendon of one part being inserted into the entocunei- 

 forme, aud that of the other into the rudimentary metatarsal of the 

 hallux. 



The extensor longus digitorum of the Genet is like that of the 

 Cat. In the Civet it gives origin to two main tendons, which sub- 

 divide to supply the four outer digits, the details of the subdivision 

 varying in dififerent individuals. In Hycena striata the muscle 

 divides into two bellies and gives off five tendons. In Crocuta it 

 seems to be single, and is said to give off no tendon to the digitus 

 minimus. 



The extensor longus hallucis is absent in Crocuta and in the Cat. 

 In the Civet it is slender, arises from the upper half of the margin 

 of the fibula, and goes to the hallux only. In the Genet it is also 

 slender and has a similar origin, but appears to end distally in an 

 aponeurotic expansion extending dorsally on the hallux and index. 



The peroneus longus in the Civet and Genet is inserted into the 

 fifth metatarsal as well as into the first metatarsal. In Crocuta 

 and Hycena striata it is inserted into the fifth metatarsal only. 



The peroneus brevis and peroneus quiniti digiti are as in the 



Cat. The latter is wanting in Crocuta, but the former has two tendons. 



The extensor brevis digitorum of the Genet and Civet is much as 



in the Cat, but ends distally in an aponeurotic expansion rather 



than in quite distinct tendons. It goes to the four outer or to the four 



