TYPE SPECIMENS OF INVERTEBRATE FOSSILS. 415 



43555. Monotrypa magna Ulrich. Holotype and figured sections. 

 Stones River (Ord.). Dixon, Illinois. 



Ulrich, Geol. and Nat. Hist. Sur\-. Minn., Final Rept., Ill, I'l. 1, 

 1893, p. 304, pi. 27, figs. 28, 29. 



43554. Monotrypa nodosa Ulrich. Cotypes. 



Riclnnond (Ord.). Savannah, Illinois. 



Ulrich, Geol. and Nat. Hist. vSur\-. Minn., Final Rept., Ill, Pt. I, 

 1893. P- 3"6. 



43779. Monotrypa rectimuralis ITlrich. Cotype and figured 



sections. 

 Cincinnatian (Ord.). Alexander Cottnty, Illinois. 



Ulrich, Geol. vSurv. 111., VIII, 1890, p. 462, pi. 38, figs. 4a, 4b. 



436S4. Monotrypella aequalis Ulrich. Holotype and figured 



sections. 

 Utica (Ord.). Cincinnati, Ohio. 



Ulrich, Journ. Cincinnati vSoc. Nat. Hist., V, 1882, p. 247, pi. li, 

 figs. 3-3b. 



43751. Monotrypella appressa Ulrich. Cot3-pes and figured 



sections. 

 Middle Devonian. Rock Island, Illinois. 



Ulrich, Geol. Surv. 111., VIII, 1890, p. 453, pi. 46, figs, i-ie (on 

 plate as INI. simplex in error). 



= Eridotrypa appressa. 



43780. Monotrypella crassimuralis Ulrich. Figured sections of 



cotype. 



Richmond (Ord.). Wilmington, Illinois. 



Ulrich, Geol. Snrv. 111., ^'^I, 1890, p. 452, pi. 38, figs. 2c-2f. 

 = Rhombotry pa crassinuiralis. 



35401. Monotrypella quadrata ( Rominger). Ple.siotypes. 



Richmond (Ord.). Oxford, Ohio. 



Hayes and Ulrich, U. S. Geol. 8nrv., Folio 95, 1903, illnstration 

 sheet, figs. 9, 10. 



= Rhombotry]')a ([uadrata. 



43685. Monotrypella subquadrata Ulrich. Cotypes and figured 



sections. 

 Richmond (Ord.). Osgood, Indiana. 



Ulrich, Journ. Cincinnati Soc. Nat. Hist., V, 1882, p. 249, pi. 11, 

 figs.4-4b. 



= Rhombotrypa subquadrata. 



135S74. Montacuta ? actinophora Dall. Holotype. 



Upper Oligocene. Oak Grove, Santa Rosa County, Florida. 



Dall, Trans. Wagner h'ree In.st. vSci. Phila., Ill, Pt. V, 1900, p. 11 72, 

 pi. 44, fig. 2. 



