1Hr»7.] MR. ST. GEORGE MIVART ON THE LEMURID^. 971 



posterior palatine foramina sniJill; a small malar foramen ; sphenoidal 

 fissure and foramen rotundum together represented by a single open- 

 ing ; no conspicuous carotid foramen on the basis cranii ; angle of 

 mandible produced downwards as well as backwards ; mastoidal re- 

 gion of periotic inflated ; tarsus short ; number of dorsal and lumbar 



vertebrae ? 



Ilab. Madagascar. 



1. L. mustelimis. From the north-west of Madagascar. Native 

 name " Fitiliki." 



2. L. rujicaudatus'^ . Native name " Bovenghe." 



CHEIROGALEUSf. 

 2-2 - , 1-1 p ]»| 3-3 ^ 3-3 _\%__oc 



Upper incisors very unequal, the anterior pair much the larger ; 

 third up])cr premolar very much smaller than the first molar, and 

 with only one external cusp ; first upper premolar decidedly, some- 

 times very greatly, exceeding the second in vertical extent ; upper 

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

 internal cusp, the postero-internal cusp being very small or absent ; 

 fifth cusp of last lower molar obsolete or rudimentary ; palate much 

 prolonged beyond the last molars, with no defects of ossification ; 

 praemaxillae largely developed, joining the nasals for more than a 

 quarter of their (the nasals') extent ; an interparietal bone ; a small 

 malar foramen ; carotid foramen conspicuous on basis cranii ; pte- 

 rygoid fossse elongated ; ectopterygoid plates subparallel ; angle of 

 mandible bent downwards, or not so bent ; seven lumbar vertebrae. 



II ai. Madagascar. 



1 . O. milii%. First upper premolar decidedly, but not very greatly, 

 exceeding the second in vertical extent ; lower incisors not as long 

 as the mandibular symphysis ; angle of mandible not produced 

 downwards ; muz7.1e not much elongated ; length of dorsum of navi- 

 culare less than half the length of the astragalus ; astragalus about 

 two-tbiids the length of the os calcis ; cuboides somewhat longer 

 than the dorsum of the naviculars. 



From the east coast of Madagascar. 



2. C.furcifer^. First upper premolar exceedingly long, like a 

 shorter second canine ; lower incisors as long as the mandibular 



» Eev. Zool. July 1867, p. 256. 



t Geoff. St.-Hil. Ann. du Mus. d'Hist. Nat. t. xix. p. 171 ; Isid. G. St.-Hil. 

 Cat. des Prim. p. 76 ; Wagner, Sclii'eber. Suppl. i. p. 273, and v. p. 147 ; Dablb. 

 Stadia Zool. p. 221; Gray, P. Z. S. 1863, p. 142; St. Geo. Mivart, P.Z. S. 1864, 

 p. 642. 



+ Geoff. St.-Hil. Cours sur les Mamin. 1828, p. 25 ; Tsid. G. St.-Hil. Cat. des 

 Prim. p. 77 ; Gray, P. Z. S. 186.3, p. 142 ; St. Geo. Mivart, P. Z. S. 1864, p. 642. 

 Cheirogakus fypicus'i A. Smith, S. Afr. Journ. ii. p. 50; Gray, P. Z. S. 1863, 

 p. 142. 



§ Isid. Geoff. St.-Hilaire, Cat. des Prim. p. 77. LepUcmur furcifer, Gray, 

 P. Z. S. 1863, p. 145. Microcebus furcifer, St. Geo. Mivart, P. Z. S. 1864, 

 pp. 621 & 642 ; Pollen and Schlegel, loc. ci(. p. 8, pi. 5. 



