12 SIMJADH.——CERCOPITHECUS. 
Cercopithecus tantalus. 
a. Skull. From the Zoological Society’s Collection. 
The Mona. Cercopithecus mona. 
Cervical vertebre...........00. 7 
DGrsal geo cie oesres RE A 13 
Lumbar 22..c2yawanere tees hee 7 
DACTAl, vcr ee eRe ea Oh ea Oe BES 3 
Caudal x.sr3463 4 sees oot eon ahs o's 26 
¥*qa, Skull: young. Western Africa. 
*5, Skull. Western Africa. 
c. Skeleton. From Mr. Warwick’s Collection. 
d. Skeleton. From Mr. Cross’s Collection, 
e, f, g. Skulls. From the Zoological Society’s Collection. 
h. Skeleton. 
The Diana. Cercopithecus diana. 
Cervical vertebre............0- @ 
Dorsal. sake cack tara aha Peewee 12 
Tumba oa seacte eahbal bees ween 7 
Dacral aden eed nee Sasdaenseacass 3 
Caudal cc sgo% veces ecw enerwae oe (imperfect. ) 
*a. Skull. From the Zoological Society’s Collection. 
b. Skeleton: young. 
The Movsracue Monxzy. Cercopithecus cephus. 
Cervical vertebre............0. 7 
DORSAL! tects. h boe 8 went eld ideo Bele de 12 
TMD aT soe cto eee be a 7 
DaCraly jer. lacy oad gran loon Paria oe 3 
Caudal) ia ce ate chee wh ectnloiedatans 25 
a, b, Skulls: adult and young. 
c. Skeleton. 
d, e. Skulls: young. From the Zoological Society’s Collection. 
f. Skeleton. From the Zoological Society’s Collection. 
The Brack-cuzexnp Ascacns. Cercopithecus melanogenys. 
*a, Skull: young. W. Africa. 
The Wutrer-nosep or Vauttine Monkey. 
Cercopithecus petaurista. 
Dithecus petaurista, Blaine., Ost. Atl. G. Pithecus, pl. 10 (teeth). 
Cervical vertebra.............. 7 
Doral: icy. sik aug tiwacvarbatab ara’ 12 
