I46 UNIVERSITY OF COLORADO STUDIES 



Lutreola vison energumenos Bangs, Mink 



Common. Two taken at Marvine Lodge. 

 Putorius nigripes Aud. and Bach., Black-footed Ferret 



Mr. R. S. Ball has two specimens which he says were killed within 1 mile of 

 Meeker. This extends its range not only west of the continental divide but far 

 toward the western border of the state. 

 Putorius arizonensis Mearns, Mountain Weasel 



Mr. W. W. Robbins, of our party, saw a weasel near Newcastle. Although not 

 determined it was likely of this species. 

 Lutra canadensis Schreber, Otter 



White River valley [Ball]. 

 Sorex personatus Geoff., Masked Shrew 



One taken at Marvine Lodge. 

 Sorex obscurus Merr., Obscure Shrew 



Two taken at Marvine Lodge. 



Fossil Invertebrates from Northwestern Colorado 



By Junius Henderson 



A large number of fossil invertebrates and some seaweeds were 

 obtained from the Mancos and Mesa Verde formations at several local- 

 ities, as follows: In calcareous shales in the lower part of the Mancos 

 north of Newcastle (Fig. 8), on Little Beaver Creek east of Meeker, on 

 the south side of White River above Meeker, and at about the same 

 horizon north of White River on the east side of the dome east of Meeker. 



Newcastle Little Beaver 



Inoceramus sp. Inoceramus cf . deformis White 



Ostrea congesta Conrad Inoceramus dimidius White 



Ostrea congesta Conrad 



Meeker, south side Meeker, north side 



Inoceramus sp. Inoceramus dimidius White 



Ostrea congesta Conrad Ostrea sp. 



Fish scales Plant stems 



At the top of the Mancos in the bluff about one mile east of Rifle 

 Gap (Fig. 7) and at the same horizon in the bluff northwest of the Meeker 

 schoolhouse (Fig. 11) 



