NEW YORK ZOOLOGICAL PARK. 81 
of communication between outside and inside cages, floors 
and walls impervious to moisture and disease germs, and the 
absence of iron bars from all cages save three. 
During the months of mild weather, all the inmates of the 
large interior cages occupy, at will, corresponding cages 
in the outdoor series. It is also intended that certain hardy 
species of baboons, and the red-faced monkey of Japan, 
shall be provided with comfortable sleeping quarters and 
live outdoors, every winter. It is believed that they can 
do this, not only with comfort, but with great physical 
benefit. ; 
For general convenience, and the promotion of a uni- 
versal understanding of the primates, we propose to set 
them forth in four groups, a subdivision strictly according 
to Nature, readily comprehended, and easily remembered. 
They are as follows, with typical examples of each: 
JT. Awnruropoiw Apres. 
Chimpanzee. 2.2464 cesses eed Anthropopithecus calvus...of Africa. 
Ornanp=Uillaniss 2035620 ecteeels Simia satyrus.........0.0. “ Borneo. 
Gray Gibbon................ Hylobates leuciscus....... % cS 
II. Oxp Wort Monxeys ann Bapoons. 
Mona Monkey..........----- Cercopithecus mona........ “~ Africa. 
White-Collared Mangabey....Cercocebus collaris........ * . 
Magot: Barbary “Ape”...... Macacus inuus...........- “ N. Africa. 
Japanese Red-Faced Monkey...“ fuscatus......... “Japan. 
Pig-Tailed Monkey.......... nemestrinus..... “ FE. India. 
Rhesus Monkey...........--- e TROSUS 00068245 vs “ India. , 
Entellus Monkey...........-- i entellus........05 os 
Black “Ape”..........0-ee es Cynopithecus niger........ “ Celebes. 
Golden Baboon.............- Papio babuin............. “ON. Africa. 
Hamadryas............--+5-- “ hamadryas......... “Arabia. 
Mandrill...... 0s sees carved. f  MOTMON 6 6 os over sacs “W. Africa. 
Geladaeiuk wo acess eetomeen 5 bc8 Theropithecus gelada...... “Abyssinia. 
III. New Wortp Monkeys. 
White-Throated Sapajou..... Cebus hypoleucus......... ss S. America. 
Red-Faced Spider Monkey... Ateles paniscus.........-. = fe 
White-Headed Saki.......... Pithecia leucocephala...... aes = 
Yarkee: Short-Tailed Monkey. Brachyurus calva......... Sts vf 
Squirrel Monkey............. Chrysothrix sciurea....... ears h ee 
Common Marmoset.........- Hapale jacchus..........- anes on 
Douroucoli...........2++-555 Nyctipithecus trivirgatus.. “ “ fs 
TV. Lenturs anp Lemurorps. 
Ring-Tailed Lemur.......... Lemur catta...........65. “Madagascar. 
Tm ened sie oladiecers ater ord omissveen ey Indri brevicaudata........ * India, 
Galago...... cece cece eee eee Galago galago............ “Madagascar. 
Slow Lemur..............5-- Nycticebus tardigradus “Madagascar. 
“ 
Aye-AYe.... eee cece eee eee Cheiromys madagascariensis India. 
