V. MIDIDAE. 



GENERA. 



Saguinus La.c=Hapale Geoff. 



Hapale Gray. Jacchus Gray. 



Cebuella Gray. Mico Gray. 

 Midas Geoff. 



Leontopithecus Gray. Oedipus Gray. 



Midas Gray. Seniocebus Gray. 



PROSIMIAE. 



FAMILIES. 



I. Teeth of three kinds, the canine3 being retained through life. Incisors 

 small, with simple roots. Pectoral mammse developed, in addition to 

 inguinal ones. (Owen.) (Lemuroidea.') 



A. Fibula entirely distinct from the tibia. Skull with the orbits open 

 behind. Incisors of upper jaw small, (rarely wanting,) separated into 

 two groups by a symphysial interspace ; of lower jaw, larger, contiguous, 

 and proclivous; canines of lower jaw parallel with and like incisors. 



Pes with the second toe armed with a subulate claw; rest with flattened ' 

 nails. 



LEMURIDAE. (VI.) 



B. Fibula partially auchylosed with the tibia. Skull with the orbits parti- 

 ally closed behind by the union above of the alisphenoid with the jugal. 

 Incisors of upper jaw (4) contiguous, inner large and conic ; of lower 

 (2) contiguous and opposed to large upper teeth: canines of lower jaw 

 normal. Pes with the second and third toes armed with subulate nails ; 

 rest with flattened pointed nails. 



TAESIIDAE. (VII.) 



II. Teeth of two kinds, the canines being early deciduous. Incisors f , gli- 

 riform, continually reinforced from the formative pulp ; the fangs very 

 long, those of the lower jaw extending backwards to the base of the coro- 

 noid processes. Inguinal teats only developed. Maims with the middle 

 finger very attenuated, and provided with a narrow scooped nail ; rest of 

 nails (except of thumb of pes) similar, subulate. (Daubentonioidea.) 



DAUBENTONIIDAE. (VIII.) 



STIPES-FAMILY LEMTTBOIDEA, 

 VI. LEMTTBIDAE. 



SOT-FAMILIES. 



I. Teeth 30 ; i. e. M I P.M. J C. | I. 2 -^x2. 



INDHISINAE. (A.) 



II. Teeth 36 (exceptionally 32) ; i. e. M. f P.M. f C. { I. ^x2 (exception- 

 ally, I. - in adult). 



A. Tarsus short or of moderate length. 



