154 PROF, ST.-GEORGE MIVART ON THE ^LUROIDEA. [Feb. 7, 



is (in general, but not in V. tangalungd) relatively larger and more 

 obtusely triangular or even nearly quadrangular, and is more nearly 

 equal in size vyith the tooth in front of it ; ^— has a relatively larger 



The following teeth, which are absent in the Cat, are present in the Genet : — 



P 1 M- 2 P 1 p. 2 . 



p ' ' ^p^. 5^ are one-rooted. The second upper premolar, ^— , which is 



P 3 



one-rooted in the Cat, is two-rooted, as is also p—;,. — ^ has its crown more 

 triangular than the Cat's, the heel (or talon) being smaller. <^-r, is much like 



P 4 -t^- «^ 



that of the Cat. The upper sectorial ^— differs from the Cat's in that its 



anterior outer cusp is smaller, its third outer cusp, or talon, distinctly bilobed, 

 and its inner cusp larger and more produced from the general surface of 



the tooth. The homologous lower tooth, r^—, is very like that of the Cat. 



Ml 

 The first upper molar — ^— is very much larger than that of the Cat ; its antero- 

 posterior extent compared with that of — ^— taken at 100, is in the Genet 37'5, 

 in the Cat, at most, only 300 ; its transverse diameter compared with that of 



-^— taken at 100 is in the Genet 140-0, in the Cat only 800. Moreover it 



has three roots instead of only two as in the Cat. Its functional surface is 

 trihedral and presents two outer and one inner cusp, with an external cingulum, 

 which is very prominent at the outer anterior angle of the tooth. Between 

 this and the two outer cusps is a flattened somewhat elevated (the skull having 



the basis cranii upwards) surface. — '— is shaped like — ^ but is very much 



smaller. The lower sectorial tooth, =r=— (the analogue, but not the homologue, 



of the upper sectorial), has a much larger heel than has that of the Cat, and one 

 which is divided into an inner and an outer cusp. There is also a distinct 



internal cusp, which is placed opposite to the principal external cusp, ^rj—r, is 



a much smaller tooth than jt—,, and is generally quadrate or quadricaspidate, 



but may be trihedral, with two cusps in front and one behind. 



Of the milk-dentition I have not seen the first upper and lower deciduous 



D 2 

 molars. The second upper deciduous molar, ^~, has a rather more developed 



prominence, both in front and behind the main cusp, than has the tooth which 

 replaces it. It is therefore very unlike that of the Cat, which is a small simple 



one-fanged tooth. The second lower grinder =r-^ is like p— ; ; but its talon is 



larger and is distinctly divided. This tooth is not developed in the Cat. 



D 3 

 The deciduous upper sectorial, — ^— , agrees with that of the Cat in being quite 



P 4 



unlike the tooth which replaces it, and in resembling -^~. It differs from the 



permanent sectorial (as is the case in the Cat) in that the inner cusp is re- 

 latively smaller and nearer to the antero-posterior middle of the tooth. A 

 slight ridge extends from this inner cusp to the anterior cusp ; and on this 

 ridge a very small fourth cusp is develojDed. The homologous lower tooth 



=— - is like ^5— 7, but has a relatively larger talon, thus resembling the Cat's =— • 



The hindmost upper milk-molar — '— is quite like ^^, though not nearly so 



antero-posteriorly extended as is the deciduous upper sectorial ; it is (as in the 



Cat) larger in relation to it than is ^— -^. The inferior deciduous 



sectorial =— - is quite like ^tjf—., except that the antero-exterior cusp is much 



smaller than that immediately behind it. In this difference it agrees with the 



Cat's — ^— , but it has not that excess of talon compared with— ^ which |r— has 



