- M ERISTIC VARIATION. [PART I. 



ut thf K-i|iiimaiix an- rather with American tribes than with 

 Kiirup.-.-ins Jt' this were established, it would be not unlikely 

 that tin- Ks<|uinmux dogs might be descended from dogs domesti- 

 'I in AimTK-a before the coming of Europeans, and so far belong 

 ratlin- \\ith tin- Inca dogs than with ours 1 . 



*244. Inca Dogs. The domestic dogs from the Inca interments, be- 

 lonirin- fn a period befon- tli- < ..... ing of the Spaniards, have bci-n 

 in\r~t i;it-il I iy Nr.iiKiXfJ. Of nine skulls not one had the full numln-i- 

 "f t'-'-th and th-n- was no case of supernumerary teeth. Sometimes 

 tin- anterior premolar was absent, sometimes a posterior molar, and in 

 some cases both. The formuhe were as follows: 



4 4 







I In- di.LfN \M-I-P all of moderate size, and none shewed any defects 

 in tin- t'iii-iii nt 1 teeth, which were all strong and sound. XEIIIUXG, A.. 



A'". -/,/<-.-. 1 |. \\. p. '.I |. 



(f Unmoeotic) in form of third Premolar. 



*24">. Dog: lar^'- breed. Jn the upper jaw on both sides the third 

 premolar, in-trad <if ha\-ing only two muts has a third internal root, 

 thus Miiiii-wli.-it i-.-<i-inl,lin- tin- i-arnassial. The crown of the tooth 

 v.-ry >li-hrly ch;inL.'ed. This is nut a case of persistent milk-tooth, which 

 though ,-i three-rooted tooth, i.s very ditren-nt. C. S. M., 55s. 



III. Variation in 



Supernumerary molars an- m.t i-an- in Cauida.-. In all cases 

 seen by me these teeth are siiigl.-rooti.-d, round-crowned, ratlin 

 tubercular teeth, plan-d behind >- or "^ as the case may be. 

 Hi \>i.i.' ha- observed that it' ,> occurs, thru ,* which is normally 

 single-rooted, not iiinv ( |urnt l\ has ;l ,|uullc rout, i hough the same 

 variation may occur when there is no m * promt. CUM vn-M-ly, 

 u1 "'" "- is absent, nut a raiv \ariation, then ^ is often of a 



I:\KII.I IT, arK'iiiiiL' chirily fmm ImKit-. coii>i,lrr< tin- Ks.piiinanx ilo^-s to be 



aon ' wolves, an.l aaya th.-a th.-v ot'tn; breed with tlir \vulf P Z S 



1-'.'", ,,. 17. 



- Hi N-I i . Mi.i-fJt. J,i)ii-l>.. Is;-.). v . ].. 539. 



