240 Zoology of Colorado 



especially characteristic of desert regions. Eremobates pallipcs 

 of Say, a species about 13 mm. long, occurs in Colorado. 



ECHINODERMATA 



This large group of marine animals, including sea-urchins, 

 star-fish, crinoids, etc., found in Colorado only in the fossil state, 

 recalling the time when the ocean covered large parts of what is 

 now Colorado. Miocidaris cannoni of Jackson (1912) is an 

 interesting fossil sea-urchin found in the Lower Carboniferous 

 near Denver. Its specific name commemorates the well-known 

 teacher of East High School, Denver. 



