1873.] MR. ST. G. MIVART ON THE LEMURS. 501 



produced downwards and inwards as well as backwards ; mastoidal 

 region of penotic not inflated ; dorsal and lumbar vertebra; together 

 not more than twenty ; tarsus short ; os calcis less than one fifth 

 the length of tibia ; uaviculare and cuboid subequal in length ; no 

 hypapophysial prominences beneath the cervical vertebrae. ' 



Fig. 14. 



riL 



Dorsal aspect of left tarsus of Hapalemur status. 



(Letters as before.) 



Galaginin.-e. 



3 „» 3 



L i C. I, Pm. f , M. f , =4=34. 



Upper molars with an oblique ridge from the postero-external to 

 the antero- internal cusp ; tarsus elongated ; os calcis more than one 

 fourth the length of the tibia ; mammae two pectoral and two inguinal. 



Hab. Africa and Madagascar. 



Cheirogaleus. 



Tail longer than body. Upper incisors unequal, the anterior pair 

 the larger; third upper premolar very much smaller than the first 

 molar, and with only one external cusp; first upper premolar as 

 extended vertically as the second or more so ; the postero-internal 

 cusp of upper molars very small or absent ; palate much prolonged 

 beyond the last molars ; praemaxilke largely developed, joining the 

 nasals for more than a quarter of their (the nasals') extent; an in- 

 terparietal bone ; mastoidal region of penotic not inflated; dorsal 

 and seven lumbar vertebrae ; an intermedium in carpus ; length of 

 os calcis more than one fourth that of tibia; naviculare not twice the 

 length of the cuboid, sometimes but little exceeding it ; gall-bladder 

 with its base turned towards the back. 



Hab. Madagascar exclusively. 



