Haynes: Fauna of the Upper Devonian in Montana. 45 



Family STROPHOMENID^ King. 



Genus Schuchertella. 



21. Schuchertella chemungensis var. arctostriata (Hall). (Plate VII, 



fig. 6.) 



Slreptorhynchiis chemungensis var. arctostriata Hall, Pal. N. Y., Vol. IV, PI. 9, fig. i. 



Hemipronites chemungensis var. arctostriata Meek, 40th Pari. Surv., PL 3, fig. 2, 



Schuchertella chemungensis var. arctostriata (Kindle), Bull. Am. Pal., No. 20, p. 26. 



PI. 2. 



About ten specimens, identified as this variety, were collected from 

 the limestone bands in the green shale, number 5, in the valleys near 

 Three Forks, and eight specimens were collected from the same horizon 

 at Logan by Dr. Raymond in 1905 and by the writer in 1912 and 1913. 

 One very well preserved specimen was obtained by the writer in 1913 

 from the gray limestone member near Sappington. These specimens 

 show a considerable range in size, but they all seem to belong to the 

 same species and variety. The dimensions of an average specimen 

 are: width on hinge 25 mm., height 18 mm. A rather small specimen 

 has a width of 9 mm. and a height of 7.5 mm. All of the specimens 

 show the characters of the variety as noted by Hall. The surface is 

 covered with close, crenulated, radiating striae, increasing mainly by 

 interstitial addition. The specimens appear to be identical with those 

 figured by Dr. Kindle from the Jefferson limestone of Princeton and 

 Livingston, Montana. 



Family PRODUCTID.E Gray. 



Genus Productella Hall. 



22. Productella spinigera Kindle. (Plate VIII, fig. 3.) 

 Productella spinigera Kindle, Bull. U. S. Geol. Surv., No. 391, p. 19, PI. V, figs. 1-4. 

 About twenty-five specimens, identified as this species, were collected 

 by Dr. Raymond and the writer from members numbers 4 and 5 at 

 the various localities. These specimens show very little variation 

 and correspond very well with the description and figures of the 

 Ouray species of Dr. Kindle. 



23. Productella coloradensis Kindle. (Plate VII, figs. 5 and 7-8.) 

 Productella coloradensis Kindle, Bull. U. S. Geol. Surv., No. 391, p. 17, PI. IV, 

 figs. 2-8. 



About thirty specimens collected by Dr. Raymond and the writer 

 from members 4 and 5 were identified by the writer as this species. 



