360 
The American Geologist. 
December, 189-5- 
Besides the forms listed in tliis article as belonging to the 
fauna of the Kiowa shales, the fauna of the Belvidere beds in- 
cludes the following fourteen fossils not known in the Belvi- 
dere district higher than the Champion shell-lied: 
Asfdifc ])ikeiisis Hill. 
C(trdiuii) hiHoUiria Crag. 
Hoiiiomya (dta Roem. 
Muigai'ita iipwherriji Crag. 
Titrritella s('ri(tfiin-gr(()iMlata 
Roem., var. marnochi White.. 
Tiirritella (LittiotrocJiKs) of. huin- 
holdiii Von B. 
Astroccetiia nidiformis Cragin. 
Holccti/pus plaiKdits Roemer. 
Serpjda cJi((nipi()ni Crag. 
Ostrea roauokensis Crag. 
Gryphma pitchcrl Morton, var. 
hilii Crag. 
Lima semikevis Crag. 
Pinna comancheana Crag. 
Limopsis Hubimhricata Crag. 
Altogether there are 78 forms in the known fauna of th<^ 
Belvidere beds, 13 of which are Vertebrata and 65 Inverte- 
brata. Of these, all of the Vertebrata and 22 species (one- 
third) of the Invertebrata are peculiar to the Belvidere beds, 
or at least have been reported from only these and more or 
less closely related sediments occurring north of the Oimchita 
mountain-system in Kansas, Oklahoma and New Mexico. The 
Invertebrata thus peculiar have, with one exception, been de- 
scribed by the writer, and are as follows : 
Astroccenia nidiform is. 
Nereia incognita. 
Serptda championi. 
PHcattda senescens. 
AvicAda helviderensis. 
Limopsis suhimbricafa. 
Nucida catherina . 
Remondia ferrisni. 
Cardita belviderensis . 
Cardium kansasense. 
Cardiir in bisolaris. 
Tapes belviderensis. 
Leptosolen otterensis. 
Mactra antiqua. 
Margarita marcona na. 
Margarita, neivberryi. 
Neritoma marcona na. 
Lithotrochus ct.Jiiimboldtii Von B.. 
Van ikoro jiropinqua. 
Anch ura kioioana. 
Peters ia medic in en sis . 
Cardinm 9 inadgei. 
The more important subdivisions of the Belvidere beds, as 
seen on the Medicine Lodge River valley in the Belvidere dis- 
trict and typically developed in what may be called the Elk- 
Otter tract, which extends from the heads of South Elk creek 
near the Barber-('omanche county line to the Otter Creek 
region in Kif)wa county, are given in the following 
