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: 
I, Awnruroporw APpEs. 
Chimpanzee........-.....204. Anthropopithecus calvus...of Africa. 
Orang-Utan..............005 Simia satyrus............. “ Borneo. 
Gray Gibbon................ Hylobates leuciscus....... ° 7 
II. Orn Wortp Monkeys anp Basoons. 
Mona Monkey.........-.-+-- Cercopithecus mona....... “ Africa. 
White-Collared Mangabey....Cercocebus collaris........ “ ‘ 
Magot: Barbary “Ape”...... Macacus inuus...........- “ON. Africa. 
Japanese Red-Faced Monkey...  “ fuscatus......... “ Japan. 
Pig-Tailed Monkey.......... i nemestrinus..... “ E. India. 
Rhesus Monkey.......-..---- Thesus........... “ India. 
Entellus Monkey.......------ S entellus.........+ es - 
Black “Ape”.........-2.+++- Cynopithecus niger........ “ Celebes. 
Golden Baboon.............- Papio babuin............. “ N. Africa. 
Hamadryas........--..-+055  hamadryas......... “Arabia. 
Mandrill... 2.2.1.2... ee eee “  mormon.........45- “OW. Africa. 
Gelada..isc.¢ssneeenreas anes Theropithecus gelada...... “ Abyssinia. 
ITI. New Wort Monkeys. 
White-Throated Sapajou..... Cebus hypoleucus......... “ §. America. 
Red-Faced Spider Monkey... Ateles paniscus........... A se 
White-Headed Saki.........- Pithecia leucocephala...... Bene ny 
Yarkee: Short-Tailed Monkey. Brachyurus calva,........ ai ff 
Squirrel Monkey..........--- Chrysothria sciurea....... aeons ss 
Common Marmoset.........- Hapale jacchus........... wae - 
Douroueell .....c0en04 essa ee" Nyctipithecus trivirgatus.. “ “ es 
IV. Lemurs anp Lemourorps. 
Ring-Tailed Lemur........-- Lemur catta..........45-- “ Madagascar. 
Indri..... 2c cee eee eee eee Indri brevicaudata........ “ India. 
Galago.......-+eee sees eee ee Galago galago...........- “ Madagascar. 
Slow Lemur......----++-++++ Nycticebus tardigradus... “ Madagascar. 
Aye-Aye..... eee rece ree ees Cheiromys madagascariensis “ India. 
