394 AMEKICAN FOSSIL BRYOZOA. [bull. 173. 



Rhombopora? asperula Ulricli. 



1890. Rhombopora ? asperula. Ulrich, Geol. Surv. Illinois, VIII, p. 656, pi. Ixx, 

 9-9e. 



1889. Rhombopora ? asperrima (in error for asperula). (Ulrich, in press), Mil- 



ler, North American Geol. Pal., p. 321. 

 Keokuk: Keokuk, Iowa; Nauvoo and Warsaw, Illinois. 



Rhombopora attenuata Ulrich. 



1890. Rhombopora attenuata. Ulrich, Geol. Surv. Illinois, VIII, p. 655, pi. Ixx, 7. 

 1894. Rhombopora attenuata. Keyes, Missouri Geol. Surv., V, i>. 34. 



Keokuk: Warsaw, Illinois. 



Rhombopora conlluens Ulrich. See Acanthoclema confluens (Ulrich). 



Rhombopora crassa Ulrich. 



1884. Rhombopora crassa. Ulrich, .Tour. Cincinnati Soc. Nat. Hist., VII, p. 28, 



pi. i, 2-2?;. 

 1894. Rhombopora crassa. Keyes, Missouri Geol. Surv., V, p. 34. 

 Goal Measures: Kansas City, Missouri. 



Rhombopora decipiens Ulrich. 



1890. Rhombopora decipiens. Ulrich, Geol. Surv. Illinois, VIII, p. 657, pi. 

 Ixxi, 3-3f/. 

 St. Louis: Monroe County, Illinois. 



Rhombopora dichotoma Ulrich. 



1890. Rhombopora dichotoma. Ulrich, Geol. Surv. Illinois, VIII, p. 650, pi. 



Ixx, 13-13ft. 

 1894. Rhombopora dichotoma. Keyes, Missouri Geol. Surv., V, p. 33. 

 Burlington: Burlington, Iowa. 

 Keokuk: Warsaw, Illinois. 



Rhombopora elegantula Ulrich. 



1884. Rhombopora elegantula. Ulrich, .Tour. Cincinnati Soc. Nat. Hist., VII, 



p. 33, pi. i, 3-36. 

 1890. Anisotrypa elegantula. Ulrich, Geol. Surv. Illinois, VIII, p. 447. 

 Keokuk: Kings Mountain, Kentucky. 



Rhombopora exigua Ulrich. 



1890. Rhombopora exigua. Ulrich, Geol. Surv. Illinois, VIII, p. 651, pi. Ixx, 

 10, lOa. 

 Burlington: Burlington, Iowa. 



Rhombopora exilis (Dawson). 



1868. Stenopora exilis. Dawson, Acadian Geology, p. 287. 



1878. Stenopora exilis. Dawson, Acadian Geology, ed. 3, p. 287, tig. 85a. 



1889. Stenopora exilis. Miller, North American Geol. Pal., fig. 218 (!>. 203). 

 Carboniferous: Windsor and Stewiacke, Nova Scotia. 



Rhombopora gracilis Ulrich. 



1890. Rhombopora gracilis. Ulrich, Geol. Surv. Illinois, VIII, p. 651, pi. Ixx, 



11-115. 

 Burlington: Burlington, Iowa. 



Rhombopora granulifera Ulrich. See Batostomella granulifera (Hall). 



Rhombopora Hamiltonensis Nicholson and Lyddeker. See Streblo- 



trypa hamiltonensis (Nicholson). 

 Rhombopora hexagona Grabau. See Orthopora hexagona (Hall and 



Simpson). 



