SYSTEMATIC INDEX. 



II MIDAS, Geoflfr ......................... J 3 8 



1. rosalia (Linn.) ..................... '3^ 



2. geoffroyi (Pucher.) .................. 139 



3. cedipus (Linn.) ..................... '4 



4 labiatus, Geoffr ...................... 141 



5. rufiventer, Gray ..................... M 2 



o. mystax, Spix .................. 142 



ft. pileatus, Is. Geoffr ................... 143 



6. weddelli, Deville .................. 143 



7. nigrifrons, Geoffr ................... 143 



8. fuscicollis, Spix ..................... 144 



9. chrysopygus (Wagner) .................. 144 



10. nigricollis, Spix .................. 145 



11. illigeri( Pucher.) ..................... 145 



12. bicolor, Spix ..................... 147 



13. midas (Linn.) ..................... 148 



14. ursulus, Geoffr ...................... 148 



FAMILY II. CEBID^: .................. 150 



SUB-FAMILY I. NYCTIPITIIECIN^E ............ 152 



I. CHRYSOTHRIX, Kaup ..................... 152 



1. usta (Is. Geoffr.) .................. 154 



2. entomophaga (d'Orb.) .................. 155 



3. sciurea (Linn.) ..................... 156 



4. cerstedi, Reinh ...................... 158 



II. CALLITHRIX, Geoffr ...................... 158 



1. torquata (Hoffm.) ................. 159 



2. cuprea, Spix ..................... 160 



3. amicta (Humb.) ..................... 161 



4. cinerascens, Spix ......... ......... 161 



5. moloch (Hoffm.) ..................... 162 



6. ornata, Gray ..................... 162 



7. personata, Geoffr. .................. 163 



8. nigrifrons, Spix ..................... 164 



9. castaneiventris, Gray .................. 164 



10. melanochir, Neuwied ... ... ... ... ... ... 165 



11. gigot, Spix ..................... 165 



III. NYCTIPITHECUS, Spix .................. 166 



1. trivirgatus (Humb.) ............... ... 168 



2. lemurinus, Is. Geoffr ................ .. ifcg 



