PLEASE insert the following corrections on pages cxix and cxx of 
part 2 of volume 3 of the FINAL REPoRT of the Geological and Nat- 
ural History Survey of Minnesota. 
Page cxix. 
* 
For Lophospira parangulata var, acuminata n. var. read Lophospira acuminata, 
n.sp., p. 993. 
For Lophospira (?) major read Hormotoma (?) major Hall, p. 1018. 
After Liospira abrupta insert Liospira modesta, n. sp. Ctenodonta bed. 
After Hormotoma gracilis insert Hormotoma gracilis var. goodhuensis, n. var. p. 
1015. Ctenodonta bed. 
After Coelocaulus cehlerti insert Coelocaulus neglectus n. sp., p. 1020, Clitambonites 
bed. 
After Ophiletina sublaxa insert var. sequens, n. var., p. 1031. Fusispira bed. 
Page cxx. 
Add Maclurina subrotunda Whitfield, p. 1043. Maclurea bed. 
For Trochonema varians read Trochonema vagrans, n. sp. p. 1049. 
Insert (Eunema) between generic and specific names of Trochonema salteri and Tro- 
chonema robbinsi. ; 
For Trochonema sp. read Trochonema (Eunema) simile n. sp., p. 1053. 
“ Trochonema liratum read Gyronema liratum n. sp. 
“ Trochonema pulchellum read Gyronema pulchellum, n. sp. 
“ Trochonema semicarinatum read Gyronema semicarinatum Salter. 
“ Trochnema percarinatum Hall read Gyronema duplicatum, n. sp., p. 1055. 
“ Cyclonema textilis read Strophostylus textilis n. sp., p. 1064. 
Holopea pyrene is from the Fusispira bed. 
For Holopea subundata read Holopea paludiniformis Hall, p. 1067. Clitambonites 
bed and in the Trenton of New York. 
Subulites conradi occurs also in the Black River group in Canada. 
Add Subulites regularis n. sp., p. 1072. Stones River group in Minnesota, Kentucky 
and Tennessee, and Black River group in Canada. 
For Fusispira vittata Hall, read Fusispira angusta, n. sp., p. 1079. 
“ Fusispira vittata var. vaticina read Fusispira angusta var. subplana, n. var., 
p- 1079. 
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