GALEMYS 25 



acts in opposition to combined posterior surface of large upper 

 incisors. Upper unicuspids forming an unbroken row continuous 

 posteriorly with series of cheek teeth, but separated anteriorly 

 from large incisor by distinct space into which the apex of 

 second lower incisor fits when jaws are closed. Two anterior 

 unicuspids (i 2 and i 3 ) minute, terete, single-rooted, their axes 

 directed backward and falling in same line with those of two 

 anterior lower unicuspids when jaws are closed. Third unicuspid 

 (canine) two-rooted, its crown perpendicular, compressed, larger 

 than those of first and second combined, and distinctly greater 

 in height. Fourth unicuspid (pm 1 ) single-rooted, subterete, 

 scarcely larger than second. Fifth and sixth unicuspids (pm 2 

 and pm 3 ) essentially like canine, their crowns distinctly higher 

 than wide, compressed obliquely to the tooth-row, with slightly 

 developed anterior and posterior cutting edge. Height of third 

 and fifth sub-equal, greater than in the others, their tips about 

 on level with main cusps of molars ; sixth lower than fifth but 

 with crown longer and posterior ridge better developed. Lower 

 unicuspids not unlike pm 2 and pm? but with crowns lower and 

 longer, slanting a little forward, each with a faintly developed 

 antero-internal lobule. These teeth are slightly imbricated and 

 their form approximates that of the unicuspids of the Soricidie. 

 First and second (i s and c ) higher than third, their form suggest- 

 ing that of anterior lower incisor, all three single-rooted. 

 Fourth larger than any of the first three, obscurely two-rooted ; 

 fifth slightly smaller, single-rooted ; sixth (pm 4 ) largest of the 

 series, distinctly two-rooted, its cusp nearly on level with 

 main cusps of molars, its an tero- external lobule (rudiment of 

 parastyle) more evident than in the others. Large upper pre- 

 molar three-rooted, its crown area about equal to that of third 

 molar, its main cusp with well developed anterior and posterior 

 cutting edges, its antero-internal cusp small but evident, its 

 postero-internal cusp about equal to protocone of m 3 . Upper 

 molars with crowns wider and less oblique than in Talpa 

 europsea, and main cusps not so high. Transverse groove 

 between bases of main cusps converted into a median pit by 

 better development of commissures of protocone and larger size 

 of protoconule and metaconule. Paracone and metacone about 

 equal in height, the latter slightly the more robust. Styles well 

 developed, except the reduced parastyle of to 1 , the mesostyle in 

 each tooth completely divided into two cusps, the W-pattern thus 

 changed into two V-shaped figures. Third upper molar with 

 crown area about two-thirds that of second, its metastyle and 

 fourth commissure absent. Lower molars essentially as in 

 Talpa europsea, but contrast in height of outer and inner 

 cusps very slight. 



