ATB.4 CAMBIAN CONCHOSTRACA — ULRICH AND BASSLER 123 



Page 

 FiGURBS 22-25. Indiana anderssoni (Wiman) 72 



Wiman's illustrations of this species. 



Lower (? Middle) Cambrian, Glauconite sandstone: 

 Eggregrund, Sweden. 

 26, 27. Indiana labiosa, new species 79 



The two type specimens, X 4 representing the right 

 and left valves. 



Middle Cambrian (Stephen formation) : Mount Bos- 

 worth, British Columbia. 



28. 7«dfano sw&ereda, new species 74 



The type specimen X 4. 



Lower Cambrian: l}i miles north of Bald Mountain, 

 Washington County, N. Y. 



29. Indiana (Leperditia) solvensis (Jones) 83 



Cast of impression of right valve, X 2 (after Jones) . 

 Middle Cambrian (Llandeilo flags) : St. Davids, South 

 Wales. 



30. Indiana lentiformis Cobbold 84 



Side and edge views, natural size, of Leperditia lenti- 

 formis Cobbold (after Cobbold) . 



Lower Cambrian, Olenellus limestone: Comley, Shrop- 

 shire, England. 



