PtATE 133. 



Fics. 1-13. Erlcomnca sciiiota, new species (p. 7C^S). 



1. Fragments of the iduioneifonu «oariuiu, iiiitiii-al size. 



2. Celluliferous side of a ^^■oll preserved example, X 12. 



3. Lateral face, X 12. Tlie tubes are distinct and separated liy a distinct tliread. 

 4, 5. Dorsal side with the dact.vletlirae, X 12. 



6. Dorsal of a worn brancli, X 12. The calcareous covering lamella of tlie dactylethrae 



is broken. 



7. Frontal of a lirancli, X 2.5, sliowing dact.vletlirae at the bifurcation. 



8. Branch of Eikosoiicu ailiiintn, new species, from the Middle Jacksouian at Wilming- 



ton, North Carolina, showing ovieell, X 12. Introduced here by error. 



9. Longitudinal section, X 25. The walls of the dactylethrae appear to be .separated 



by a white line indicating an incomplete intercellular tissue. 



10. Longitudinal section, X 2.5, passing through a bifurcation. 



11. Longitudinal section, X 25. Dactylethrae of ramification are visible. 

 12, 13. Two transverse sections, X 25. 



Lower Jacksonian (Moodys marl) : Jackson. Mississippi. 

 Cat. No. G5364, U.S.N.M. 

 Figs. 14-17. Lichcnopora grigiwnciisis var. multihtmrllosa. new variety (p. S20). 



14. The type-specimen, natural size, a fragment of a lamellar expansion. 



15. Basal lamella of the type, X 12. 



10. Surface of the same, X 12. The fascicles are very atteiiu.-ited. The cancelli are of 



the same size as in the species. 

 17. Edge view of a broken zoariura consisting of but one thick lamella. X 12. 



Middle .Tack.sonian : Rich Hill, 5i miles soutlieast of Knoxville, Crawford County, 

 Georgia. 



Cat. No. G.5365, U.S.N.M. 

 134 



