(CILAS SIEM CAL TOM OUM (OU (QIPTETBISE IEA IL 2B OBO O IOCKGS, ATS 
13. Macrodon sangamonensis, Worth. (?) (rr) 
14. Phillipsia, sp. (tr) 
Inpithewshalyelinvestones of Not 7 -aatews species) or large 
Brachiopods were obtained. West of the Dunlap schoolhouse, 
two miles north of Matfield Green, the following species were 
collected : 
1. Derbya multistriata, (M. and H.) Prosser." 
2. Aviculopecten occidentalis, (Shum.) Meek (rr) 
3. Myalina recurvirostris, Meek and Worth (?) (rr) 
shells poorly preserved. 
4. Myalina perattenuata, M. and H. (?) (rr) 
In addition at other localities has been found the following 
species : 
5. Spivorbis sp. 
Probably the S. orbiculostoma of Swallow.? 
The light gray limestone of No. 9 contains an abundance of 
a few species of small Lamellibranchia which constitute a char- 
acteristic Permian fauna. An exposure west of Wolf Creek, on 
Sec. 15 of Four Mile township, Morris county, afforded the 
following species : 
Pleurophorus subcuneatus, M. and H. (a) 
Bakevellia parva, M. and H. (c) 
Yoldia (?) subscitula, M. and H. (tr) 
Edmondia Calhount, M. and H. (?) (r) 
Small specimens similar to the form figured by Geinitz as 
belonging to this species (see Fig. 2, Pl. II., Carb. und 
Dyas, Nebraska). 
. Nautilus eccentricus, M. and H. (?) (c) 
6. Aclis Swalloviana, (Geinitz) Meek. (r) 
7. Small Gastropod cf. Orthonema sp. (tr) 
Specimens showing Szy/olites structure. 
BW wb 
Leal 
The limestones interstratified with the Florence flint contain 
™The strice and characters of these specimens apparently agree with the form 
noted in some of the early papers as Orthisina umbraculum, Schloth, sp.(?) for which 
Meek and Hayden proposed the specific name O. mztistriata (Proc. Acad. Nat. Sci. 
Phil., Vol. XI., p. 26). 
2 Described without figure in Trans. Acad. Sci. St. Louis, Vol. I., p. 181. 
