M KIM STIC VA HI ATIOX. 



[PART i. 



on tin- i-iu'lit -idi- immediately in succession to ^ but slightly within 

 the an-adc i-, ;iniither tooth (marked + in the figure), which is very nearly 

 a "]>> ofy,>. tin. ugh a little smaller. On the outside of the jaw and 

 lii-liiiid thi.s to.ith is a normal ;A From its singular position outside 

 tli.- series, this tooth might easily be taken for a supernumerary one 

 though it> f.ii in clearly shews it to be a natural p* displaced, while two 

 t.-t-fh having the form of j7 s stand in succession. B. M., 63. 7. 7. 18. 

 (in. -mi,. ned by THOMAS, P. Z. S., 1882, p. 62). 



H. ichneumon (Andalusia): in one of the upper jaws between 

 :in<l internal to }^ and /j_ 3 is a 3-rooted tooth (not a milk-tooth) which 

 in >i/f and shape is about intermediate between r and p\ Leyd. M. 



Molars. 



Tin.- only cases of noticeable variation in molars were both in 

 t In- same species, Crossarclnis zebra. Of this species six skulls were 



n, four normal, and also the two following, the first being a case 

 of extra molar on each side, the next a case of increase in size and 

 cninpN-x variation in m?, on the left side suggesting a partial divi- 

 sion of this tool li. 



'301. Crossarchus zebra: small but well-formed additional molar 

 in uppi-r ja\\ .,11 each side, making pf, ??i|. (Fig. 51, III.) Teeth 

 unfortunately all much worn, so that it is not possible to determine 

 whrtluT any of the molars differ from their normal forms in corre- 

 lation with the existence of these extra teeth ; but as far as size is 

 concerned, then- was no sign of such change, ^ and m?_ being of 

 th.- ii-ual >j/e. B. M., 73. 2. 24. 18 mentioned by THOMAS, P. Z. 

 X. l.ssi>, pp. 01 and 89. 



FlO. 51. ' .//V/H/X :,lr,i. I. I'.'Stn iui njip.T nmlars of No. 



II. A Hoi in;il sjurinicn, right upper jaw. 

 III. Upper jaw of No. 301. 



