174 KANSAS UNIVERSITY SCIENCE BULLETIN. 



to the whorl. The notch in the lip extends back some distance- 

 as a thin, almost linear slit. 



Pleurotomaria tabulate/, Conrad. 



Soleniscus sp. 



Sphserodoma medialis (Meek and Worthen) Keyes. 



Sph&rodoma ponderosa ( Swallow) Keyes ? 



Sphserodoma sp. 



Strophostylus nana (Meek and Worthen) Keyes. 



? Glyphseoceras sp. (Two specimens, very small and not so 

 preserved as to be well identified.) 



* Goniatites subcavus Miller and Gurley. 



* Metacoceras sangomonensis (Meek and Worthen) Hyatt. 



* Nautilus planovolvis Shumard. 



Orthoceras Cf. rushensis McChesney. Pittings on part of the 

 surface. 



Solenocheilus Cf. collectus Hyatt. 



Stearoceras gibbosum Hyatt ? Perhaps a young specimen of 

 this species, though it will probably prove to be different. The 

 cast preserves a fine line down the center of the ventral surface 

 which disappears before reaching the deep sinus. The sinus is 

 somewhat shallower than that figured by Hyatt, and it may be 

 an Endolobus. 



Griffithides scitula (Meek and Worthen) Vogdes. 



28. Burlingame Shales. Olive shales, generally very ar- 

 gillaceous, though arenaceous in streaks, and in places even con- 

 tain sandstone. These shales are 120 feet or more in thickness, 

 and for the most part are not fossiliferous, though in places fossils 

 are very abundant. In the upper part is the Dover-Silver Lake 

 coal, and above it usually a layer of impure limestone. 



Chonetes granulifer Owen. 



Hustedia mormoni (Marcou) Hall and Clarke. 



Lingula umbonata Cox. (See previous note to this species.) 



Orbiculoidea missouriensis (Shumard) Hall and Clarke. 



Productus nebraskensis Owen. 



Seminula argentia (Shepard) Hall. 



Aviculopecten occidentalis (Shumard) Meek and Hayden. 



Aviculopecten ivhitei Meek ? 



Myalina congeneris Walcott ? 



Myalina perattenuata Meek and Hayden. 



