214 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL.83 



strong. A marked crest extends from the mylohyoid ridge to the 

 mandibular foramen. The dental arch diverged very perceptibly 

 from before backwards. 



Measurements ; cm. 



Height at symphysis, approx 2.9 



Height at M2 2.0 



Thickness at symphysis 1.34 



Thickness at M2 1.76 



Breadth of ramus, min 2.95 



Lozvcr jaiv D.—A fragment of the anterior part of the left body, 

 from the symphysis to the alveolus, with five teeth ; estimated to have 

 belonged to an adolescent of 16-18 years. Female. The bone is stout, 

 though within the range of variation of strongest modern jaws. The 

 body was low, as usual in a female. The symphyseal portion, flattened 

 and slightly receding, shows a moderate eminence of a chin. The 

 inferior border forms a well marked flat surface, with long facet 

 for the attachment of the digastric muscle. The lingual surface of 

 the bone shows a low, dull transverse epimedian ridge, and also a 

 low vertical central ridge, with bilateral shallow depressions both 

 above and below. The teeth in size are about as those in strong lower 

 jaws of today. The canine and the lateral incisor were moderately 

 shovel-shaped ; the anterior bicuspid shows on its labial cusp remnants 

 of the same condition. In both shape and size the canine resembles 

 closely the incisor, though it is broader and its body is thicker. The 

 first molar is relatively somewhat long and narrow (ant. -post. diam. 

 12; transv. diam. 10.5 mm.). 



Measurements: (G.-K. ) cm. 



Height at symphysis, estimated 3.3 



Height at I2 3.05 



Height at Mi 2.9 



Thickness at symphysis 1.36 



Thickness at M i i .45 



Lozvcr jazv E. — The larger portion of the left body, probably of 

 a female less than 20 years old. The bone is stout and the teeth are 

 large ; yet the specimen probably belonged to a female, the body 

 being too low for a male. The symphysis is flat and slopes backward 

 in a straight line ; it has no appreciable evidence of a chin. The canine 

 is stout and dull-pointed, otherwise much like the neighboring incisor. 

 The lower border is markedly flattened for the digastric attachments. 

 Lingually, anteriorly the bone resembles the preceding specimen (D), 

 though the ridges and depressions are less defined. The mylohyoid 

 ridge is unusually pronounced, the fossa for the submaxillary gland 

 deep and broad. 



