Protozoa of the Cincinnati Group. 251 



Cylindrical or tubular, two, to two and one half inches in 

 diameter, and one inch long ; lamina about one-twentieth of an 

 inch in thickness, irregular, wavy, with serrate edges ; interspaces 

 thin; pores (oscula) at irregular intervals: center of the tube filled 

 with clay, broken shells, or corals. 



Locality: Cincinnati; Morrow, O. 



3. S. suHcvi.iNDRiCA, U. P. James. 1884. Jour. Cin. Soc. 

 Nat. Hist., vol. AH I., p. 20, figs, i, \ a, /', c. 



Labccliia inoutifcra. Ulrich. 1886. Contri. to PaUeon, Vol. 



I-, P- Zl, Pl- 2, figs. 9, 9.7/^ 



Subcylindrical: exterior surface covered with prominent coni- 

 cal elevations, one-tenth to one-twentieth of an inch high, n-regu- 

 larly distributed: apices and slopes of these with radiating lines or 

 depressions: spices l;)etween the monticules covered with circular 

 or elongate papilU\i, one-twentieth of an inch apart: no surface 

 pores; specimens, two and one-half inches long, curved. 



Locality. Morrow and Clarksville, O. ; Madison, Ind. 



For the resemblances between this species and I.ebcclua /noiifi- 

 fcra, see J. C. S. N. H., IX., No. 2, p. 39. 

 c. Iiunisting forms. 



4. S. LiCHENoiDKS, U. P. James. 1S78. The PaUc^ontolo- 



gist, p. 18. 



Exi)ansions thin, on shells ; one-eighth to one-quarter ot an 

 inch in diameter and one-ipiarter to one-half line in thickness; 

 surface rugose or undulating, with small, irregular pores. 



Locality: Cincinnati. 



5. S. scABRA, U. P. James. 1878. The Palceontologist, p. iS. 

 Expansions (on shells) thin; surface rough, with conical or 



elongated monticules, one half to one line above the surface and 

 one to two lines apart. 



Locality : Lebanon, O. 



6. S. PAPiLLATA, U. P. James. 1878. The Paleontolo- 

 gist, p. I. 



Crust thin; surface, with small, closely set papill;^, irregu- 

 larly arranged, six or eight to a line ; apices open or closed. 

 Locality: Cincinnati; Clinton County, O. 



7. S. LUDLOWENSis, U. P. James. 1884. Jour. Cin. Soc. 

 Nat. Hist., vol. VH., p. 140; figures. 



Expansions two by four inches: incrusting or in irregular, 

 amorphous masses ; surface irregular or rough ; lamina thin ; pores 



