214 MEMOIRS OF THE CARNEGIE MUSEUM 
MEASUREMENTS OF DENTITION. 
Mm. 
Length of superior premolar series . 55 
Length of superior molar series 
Antero-posterior diameter of superior canine at base . 
Transverse diameter of superior canine at base.........scssseee ceeesssscseeesesceessesertenttneesseesnsesesessetees 10 
Antero-posterior diameter of P4 
Transverse diameter of P1 
Antero-posterior diameter of P* 
Transverse diameter of P2 . 
Antero-posterior diameter of P* 
Transverse Giameter Of P2 ...........+scecessessercssscseseeseseevenseecanseasepeaesaasgsnceeeerensenectansenseee seaeeseonee "1 
Antero-posterior diameter of P4 
Transverse diameter of P*, anteriorly 
Antero-posterior diameter of M+ 
Transverse diameter of M1 
Antero-posterior diameter of M? 
Transverse diameter of M2 
Antero-posterior diameter of M* 
Transverse diameter of M* 
Length of inferior premolar series. 
Length of inferior molar series 
Antero-posterior diameter of inferior canine at base.. 
Transverse diameter of inferior canine at base 
Antero-posterior diameter of P; 6 
Transverse diameter of P; 4 
Antero-posterior diameter Of Py ...scecsesssesssessesesseseeeesenceeseencerensseecaeenacas sessessessereneesraeseee nes 19 
Transverse diameter Of Py .......secessenseeseeseevere 
Antero-posterior diameter of P 
Transverse diameter of Ps 
Antero-posterior diameter of F 
Transverse diameter Of Py.......0.cccceceereee teers sencereesevensseeeeseaneesanaeeeuaaresauaeegseresenes 
Antero-posterior diameter of M; 
Transverse diameter of Mj 
Antero-posterior diameter of My 
Transverse diameter of My 
Antero-posterior diameter Of Moy......-ssceesccessseesssetes seneee cerns cteescneecs sasenneareneees nates 
Transverse diameter Of My........ccccceccecesecseestenennenneeescnenaeasseeseeceeserseeerecuaaaasseeeeeeesen ts 
Although there are a number of apparently strong specific characters in the 
dentition of the second specimen (No. 1589a) found with the type, I refrain from 
establishing a second species on account of the immaturity of the specimen. In 
this second specimen the upper and lower premolars are much more crowded in the 
alveolar border in comparison with those in the type specimen. ‘The upper carnas- 
sial has a better developed postero-external cutting ridge (tritocone) and the cusps 
are generally more trenchant. Pz is relatively somewhat larger with a higher 
crown, the metaconid of the lower carnassial slightly smaller and Mg two-rooted. 
