466 OARBONIFEKOUS KORMATroNS AND FAUNAS OK COLOBADO. 



1891. Str(ijmrollu.t calilloides. K'^yes, Acad. Nat. Sci. Philadelphia, I'njc, p. 255. 



Lower Coal Measures: I)es Moines, Iowa. 

 1895. iSlraparollui! cdlilloides. Keyes, Missouri (ieol. Surv., vol. 5, ]). IHO. (Date of imprint, 1894.) 



Upper Coal Measures; Kansas City, Mo.; Atchison, Kans. 



There can be littlo doubt that tlK^slicll described hy Hull a,s £Juo7)ip/ialijM ru</o.sm, 

 and to which Meek and Worthen afterwards gave the specific name snhrugomis, is 

 the same for which Conrad had a! read}' proposed the name hiachus catilloidei^, a 

 circumstance whicli was, I believe, first pointed out by Keyes. Eu. catilloides has 

 been recognized at but three localities in Colorado and is represented by only four 

 specimens in, all. 



Locality and horizon. — San Juan region (station 2333); middle portion of the 

 Hermosa formation. Crested Butte district (station 2298); Maroon formation. 

 Dolores River region, Sinbads Valley (station 2285); top of the Hermosa formation. 



BULIMORPHA Whitfield, 1882. 



B0LIMORPHA CHRYSALIS Meek and Worthen. 



PI. X, figs. 6, 6a, 7, 7a. 



1866. Polyphemopsk dirymlii. Meek and Worthen, Acad. Nat. Sci. Philadelphia, Proc, p. 267. 



Lower Goal Measures: Hodges Creek, Macoupin County, 111. 

 1873. Pobiphemopnin cJirysalis. Meek and Worthen, Geol. Surv. Illinois, Kept., vol. 5, p. 596, pi. 28, 

 fig- 7. 



Coal Measures: Hodges Creek, Macoupin County, 111. 

 1889. Bulimorpha chrysalis. Keyes, Acad. Nat. Sci. Philadelphia, Proc, p. 300. 

 1891. Buiiviovpha? chrysalis. Keyes, Acad. Nat. Sci. Philadelphia, Proc, p. 264. 



Lower Coal Measures: Des Moines, Iowa. 



The form which has been referred to B. chrysalis is not abundant, and identifi- 

 cation has not in every case been accomplished with complete satisfaction. Though 

 slight difierences have been observed, thivs species has been identified at stations 2342, 

 23-±5, and 2347, all of which are in the Rico formation. At station 2271, in the Lead- 

 ville district, occurs a somewhat larger though otherwise very similar shell, which 

 the f aunal list of the Leadville monograph " suggests may belong to this species. 



Locality and horizon. — San Juan region (stations 2342, 2345, 2347); Rico forma- 

 tion. Leadville district (station 2271). 



SOLENISCLTS Meek and Worthen, 1860. 



SOLENISCUS cf. PALUDINIFORMIS Hall. 



1858. Macrocheilus paludinxforinis. Hall, Geol. Surv. Iowa, vol. 1, pt. 2, p. 719, pi. 29, fig. 10. 



Lower Coal Measures: Des Moines Valley, Iowa. 

 1884. Sulenisciis {Macrocheilus) paludinspformis. White, U. S. Nat. Mus. Proc, vol. 6, p. 187, pi. 8, fig. 17. 



Carboniferous: Indiana. 



'lU. 8. Geol. Surv., Hon., vol. 12, 188(i, p. 67. 



