TYPE SPECIMENS OF INVERTEBRATE FOSSILS. 



225 



44088. 



.43748- 



433S6. 



41366. 



41368. 



4i3 6 : 



41369. 



44098 



43707- 



H 8. 



38146. 



Dichotrypa grandis Ulrich. Figured sections of holotype. 



Niagaran (Sil. )• Near Wilmington, Illinois. 



Ulrich, Geol. Surv. 111., VIII, 1S90, p. 49S, pi. 42, figs. iIj— le. 



Dichotrypa intermedia Ulrich. Figured sections of cotypes. 

 St. Louis (Miss.). Alton, Illinois. 



Ulrich, Geol. Surv. 111., VIII, 1S90, p. 500, pi. 76, figs. 9b, 9c. 



Dichotrypa lyroides Ulrich. Holotype. 



St. L,ouis (Miss.). Southern Kentucky. 



Ulrich, Geol. Surv. 111., VIII, 1890, p. 502, pi. 77, figs. 2-20. 



Cotypes. 



Dicranella bicornis Ulrich. 



Black River (Ord.). Minneapolis. 



Ulrich, Geol. and Nat. Hist. Surv. Minn., Final Rept., Ill, Pt. 

 II, 1894, p. 665, pi. 44, fig. 26; pi. 46, figs. 39, 40. 



Dicranella marginata Ulrich. Holotype. 



Black River (Ord.). Fountain, Minnesota. 



Ulrich, Geol. and Nat. Hist. Surv. Minn., Final Rept., Ill, Ft. II, 

 1894, p. 666, pi. 44, figs. 27, 28. 



Dicranella ? simplex Ulrich. Holotype. 



Black River (Ord.). Fountain, Minnesota. 



Ulrich, Geol. and Nat. Hist. Surv. Minn., Final Rept., Ill, Pt. II, 

 1894, p. 666, pi. 44, figs. 24, 25; pi. 46, fig. 42. 



Dicranella spinosa Ulrich. Holotype. 



Black River (Ord.). Minneapolis, Minnesota. 



Ulrich, Geol. and Nat. Hist. Surv. Minn., Final Rept., Ill, Pt. II, 

 1894, p. 665, pi. 44, fig. 23; pi. 46, fig. 41. 



Dicranopora lata Ulrich. 



Richmond (Ord.). Clarksville, Ohio. 



Cotypes. 



Ulrich, Journ. Cincinnati Soc. Nat. Hist., V, 1S82, p. 166, pi. 6, 

 figs. 16, 1 6a. 



= Rhinidictya lata. 



Dicranopora trentonensis Ulrich. Holotype. 



Stones River (Ord.). Lebanon, Tennessee. 



Ulrich, Journ. Cincinnati Soc. Nat. Hist., V, 1882, p. 167, pi. 6, 

 figs. 15, 15a. 



= Rhinidictya trentonensis. 



Dictyophytra (?) walcotti Rauff. Plesiotype. 



Utica (Ord.). Near Holland Patent, New York. 

 Rauff, Palaeontographica, XU, 1894, p. 249, pi. 4, figs 1, 2. 



Dieconeura arcuata Scudder. •. Holotype. 



Upper Coal Measures. Mazon Creek, Grundy County, 

 Illinois. 



vScudder, Mem. Boston Soc. Nat. Hist., Ill, 18S5, p. 336, pi. 30. 

 fig. 4; Foss. Insects N. America, I, 1890, p. 300, pi. 16, fig. 4, 



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