A MKMOIK UPON THE GENUS 
y. Irfint i*uiHTH»r molar with two in- 
mnial foiioM. 
10. SuiK-rior and inlerior .liaaU-inuH hjiuiII. 
11. Kona of i*kiin much chaigaU-d and 
dc|m-^m-<l. tK-oipital rt‘gioii higlier 
than the iiiternrhital and provided 
witli large cn-ata. Orbit ainall and 
phicwl well forward over molars. 
Floor of orbit short. Zygomatic arch 
strongly develojaal. Auditory pro- 
c-eK«-s well wparattKl. I’alate short. 
I’nanaxilhiries short ami with a short, 
rmiiid symphysis. Nasals elongated 
and of the sjiine hnwlth throughout. 
Alispheiioid canal long. Foramen 
ovale s«»parat«*il fnan foramen lacerum 
in«Hliinn. Symphysis of lower jaw 
short and nnimlecl. 
l‘i. (Vaiiial eavity elongated, with ccre- 
hnd ami «*erelHdlar fossie separated 
hy an ossified ieutorium. 
IS. Hniin «»f a low tyjK*. Divisions of 
same well s«*pnrated, with olfactory 
loU-s niueh elongated. Oix-belluin 
and tn«‘«Iulla very broad transversely. 
H. .\tlas |M’rfontt(Hl by a vertehrarterial 
canal. 
15. S'apnhi with a largi' coracoid pro- 
«vss. 
IG. Pelvis with iliac |)ortion not subdi- 
viihsl. 
17. t’ar|»us short and hn)ad. with distal 
faci'ts of lunar sulHM|ual. The four 
•ligits of the mamis well developed. 
Manus approaching the Paraxonic 
tyis*. 
18. Tarsus with facets of astragalus and 
calcaneuin continuous. Astragalo- 
culsad contact .small. No interlock- 
ing articulation lH>twi*en metatarsals. 
A fibuloK'alcaneal facet present. 
10. Supei’ior and inferior diastemas large. 
11. Form of skull may be variously mod- 
ified. Crests not strongly devel- 
oped. Orbit and Hoor of same much 
elongated. Zygomatic ai-ch nearly 
straight and slender. Auditory prr> 
cesses nearly aiiproachingeach other. 
Mastoid portion of periotic not 
. exposed. Premaxillaries much elon- 
gated and high, with a long median 
symphysis. Nasal short and broad, 
expanded distally. Symphysis of 
lower jaw nearly horizontal in posi- 
tion and very long. 
12. Carpus narroAV and elongated. Distal 
facets of lunar highly specialized, the 
lunar-magnum facet being very small 
and nearly vertical in position. 
Lunar-unciform facet large. Mag- 
num high and narrow. Manus aj)- 
proaching the Mesaxonic type with 
metacarpal 111 larger than the 
others. Metacarpal V <|uite reduced. 
13. Distal humeral trochleie specialized. 
14. Pre- and postzygapoj)hyses of pos- 
terior dorsal and lumbar vertehne 
involute in form. 
15. Scapula with an oblique e.xternal 
spine. 
Ih. Tarsus with facets of astragalus and 
calcaneum widely separated. Infer- 
ior facet small. Astragalo-culx)id 
contact large. Metatarsals III and 
IV may have interlocking artic- 
ulations. hibulo-calcaneal contact 
reduced. Navicular shallow. A 
large contact between cuboid and 
metatarsal HI. 
