WHOLE VOL. SKELETAL REMAINS OF EARLY MAN — HRDLICKA 293 



PRINCIPAL MEASUREMENTS OF THE MOLAR TEETH^ OF THE 



LA QUINA H 5 LOWER JAW 



(After Henri Martin) 



Total length, crown 



Root 



Crown: Length (anterior-post. 



diam.) 



Breadth (transverse diam.) . 



mm. 



6.5 



14-5 



12.0 

 II -5 



mm. 



6.5 

 15.0 



12.0 

 II-5 



M 2 



mm. 

 155 



12.5 

 12.0 



1. 



mm. 



6.0 



18.0 



12.3 

 12.0 



M 3 



mm. 



5-5 



16.5 



II 5 

 13.0 



1. 



mm. 



5-3 

 17.0 



115 

 13.0 



' In his 1923 volume, p. 144 et seg.. Dr. Martin gives exhaustive measurements of each of the 

 25 teeth that are present. 



THE SECOND MANDIBLE (1912) 



(Mainly after Henri Martin) 



The second lower jaw (H 9) of La Quina ' is represented by its 

 left half only, but this is in a good state of preservation. The jaw 

 is not as receding as H 5 and has a distinct reminder of a chin. 

 The mental foramen is multiple, consisting of three larger and two 

 smaller orifices, extending from I2 to Mi. At the cross section 

 between Pm2 and Mi the height of the body is 3.7, thickness 

 1.6 cm. [The lower jaw H 5 of the skeleton measures 3.4 by 1.5 cm., 

 but the damage to the alveolar border makes the measurement some- 

 what uncertain, and on the right the thickness of the body was also 

 about 1.6 cm. The body is distinctly higher on the left than on the 

 right side (r. approx. 3.2; 1. 3.5 cm.) ] The axis of the condyles is 

 less oblique than in modern man (same case in H 5). The mylohyoid 

 ridge is stout, the fossa for internal pterygoid marked, much as in 

 H 5. The ramus was high, not excessively broad; there is much 

 more of an angle than in H 5, and the mandibular angle is more 

 open ; the sigmoid notch was fairly deep. The teeth are megadont, 

 again as in H 5. At the angles the fairly sharp borders of the jaws 

 are slightly inverted. The unevenness of the right and left sides of 

 the jaw is remarkable. The right body is distinctly lower but stouter 

 than the left, and the right ramus is distinctly lower as well as 

 narrower, but at the same time stronger than the left. There is. 



' Reported, briefly described, and pictured by Martin in : Position stratigraph- 

 ique des ossements humains recueillis dans le Mousterien de La Quina. Bull. Soc. 

 prehist. France, pp. 3-4, 191 2, reprint. 



