ZHOUKOUDIAN (CIIO~JKOIJTIEN): LOWER CAVE 553
opposite one another. M1 and M2 hypoconulid was
large, and varied in degree to which it lay buccal to
midline. M3s were apparently quite wrinkled; cusp
morphology less defined and buccal cusps more com-
pressed than on Ml and M2.
Deciduous lower canines preserved in 22687, and
worn dms present in 22687 and B3.9. dcs very tiny;
would have been quite tall, with long distal slope. dcs
minimally concave lingually and more curved buccally.
dml and 2 quite elongate m/d and rather narrow b/l.
dml much smaller in all dimensions than dm2. dml
had lingually and slightly mesially directed paracristid
separated from metaconid region behind by distinct
notch. dml was somewhat exodaenodont buccally
over mesial root, which is well separated from distal
root. dm2 relatively longer and narrower than larger
M1 behind it; both are apparently similar in being
more distended mesially on buccal than lingual side,
and in having buccally placed hypoconulid.
Zsolated Teeth. There is, in the cast collection, a
box with 33 isolated teeth. Most of them appear not
to be hominid, instead resembling those of small fossil
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end. 171: 341-361.Repositories
Department of Historical Geology and Palaeontology, Uni-
versity of Uppsala, Sweden (first two teeth); Institute of Ver-
tebrate Paleontology and Paleoanthropology, Beijing (1959
and 1966 finds). The principal reference set of casts of the
lost originals is in the Division of Anthropology, American
Museum of Natural History, New York, NY 10024; others
exist in the IVPP, Beijing, and in The Natural History
Musem, London, United Kingdom.