EXPLANATION OF PLATE XXVII. 



Fig's 95 A and B. — Carnvculiua parva (Barnes) vSingleton Lake, 

 Halls. 



Fig's 95 C and D. — C. parva (Barnes) d^, Artificial Pond, Columbia. 



Fig's 96 A and B. — Eitrynia {Micromya) lienosa (Conrad) cf, Black R., 

 Williamsville. 



Fig's 96 C and D.— £ (A/) lienosa (Con) 9, Black R., Williamsville. 



Fig's 97 A and B.— £. (M) iris (Lea) 9, White R., Hollister. 



Fig's 98 A and B.—E (M.) brevicuhi (Call) cf, White R., Branson. 



Fig's 98 C and D.— £ (M.) hrevicula (Call) 9, Jack's Ford, Current R. 



Fig's 99 A and B. — E (M.) hrevicula Brittsi (Simpson) 9, Niangua R., 

 Hahatonka. 



Fig's 100 A and B. — £. (Eurynia) recta (Lamarck) cT, Osage R., Oseola. 



Fig's 100 C and D. — E. (E.) recta (Lam.) 9, Meramec R., Meramec 

 Highlands. 



Fig's loi A and B. — E. (E.) sulnostrala (Say) o^. Lost Cr., Maysville. 



Fig's loi C and Y^. — E. (E.) suhroslrata (Say) 9. Flat Cr., Sedalia. 



