REPORT ON PAL^ONTOLOGTCAL COLLECTIONS. 373 



htoceramus , undt. sp Resembles /. Morton). Meek and Hayden (which 



holds ion near the base of formation No. 



4 in Upper Missouri), but may be distinct. 



Found loose at or near the same locality as last. 

 Ftioirnimns psnnlomytiloidex, Sehiel Five miles east of Big Sandy. Eastern Kansas. 



No. 3 of Upper Missouri section. 



Fiuhi romux arn-nJohlrs. Meek and Hayden .Locality ami position same as last. 



I'diiopod f . .'. Apparently a i'onopoo : hut. as the specimens are 



any known species. Above Deer Creek, ou 

 North Platte. Probably Cretaceous. 

 liacnlitcs , undt. sp Small and much compressed. Specimens imper- 

 fect. North Platte above the bridge, No. 3 of 

 Upper Missouri Cretaceous series ; also in same 

 position five miles east of Big Sandy, Eastern 

 Kansas. 



FOSSILS OF THE BEAR RIVER FRESH- OR BRACKISH-WATER BEDS. 



LAMELLTBRANCHIATA. 



Unio vetustus, Meek, No. 154 Near Bear River, on Sulphur ( 'reek, in estuary 



beds; longitude 1 HP .",2'; latitude 41° 12'. 

 Corbula (Anisorhinnims) pyrlfornris. Meek, No.' Ml . Hear River, same position. 

 Corbula Engelmanni, Meek, No. 154 Locality and position same as last. 



GASTEROPODA. 



Pyrgulifera humerosa, Meek, No. 154 Locality and position same as above. 



IAmnwa ? nitidula, Meek Bear River, same as above. 



Campeloma macrospira, No. 154 Locality and position same as above. 



Viviparus Conradi, Meek and Hayden ! !, No. 154. .Locality and position as above. 

 Bhytophorus pviscus, Meek Same as above. 



TERTIARY SPECIES. 



Unio Eaydeni, Meek Ham's Fork, southwestern Wyoming. 



GASTEROPODA. 



Goniobasis Simpsoni, Meek Ham's Fork. 



Goniobasis arcta, Meek Ham's Fork. 



Planorbis spcctabilis, Meek . Ham's Fork. 



I'lanorbis speetabilis, var. Utahensis, Meek Ham's Fork. 



Limnaa vetusta, Meek Ham's Fork. 



Limnasa similis, Meek Ham's Fork. 



