LiCH. 



340 



face. Plate 6, f. 3, enlarged, young Lichenalia growing on an 

 Atrypa shell ; f. 4, 5, 7, 8, enlarged, specimens growing on Fen- 

 estella ; f. 6, enlarged four times, a group of two young Lichen- 

 alia, and a young Favosites, on a Strophostylus shell; f. 9, 10, 

 enlarged, lower surfaces ; f. 11, enlarged, cross-section, showing 

 depth of cells and thickness of skin in old individuals. 

 Lichenalia concentrica, var. maeulata, from Oollett's 



Indiana Keport of 1881 p. 241, plate 5, 

 fig. 5, a small irregular specimen, with 

 unusually distinct maculae upon the 

 celluliferous surface. (Hall, 28th Kt. 

 pi. 6, figs. 3,5, 6.)— F 5. 

 Lichenalia concentrica, var maeulata, Hall Page 

 241. Upper or celluliferous surface of a regularly growing 

 specimen of medium size, showing tubercles with maculae of 

 larger cells. The cells are represented much larger than they 

 really are on the specimen. 

 Lichenalia concentrica var. parvula (Hall Doc. Ed. 28th 



Rt. State Museum, 

 N. Y. 1876, pi. 7, f. 

 12; Mus. Ed. 1879, 

 p. 147.) Figures 

 from Collett's Indi- 

 ana Report of 1881, 

 p. 241, plate 6, fig. 

 PL. 6. 1, a fragment grow- 

 ing on a Strophostylus shell ; fig. 2, enlargement of a portion, 

 showing the cells much smaller and more distinctly circular 

 than in the ordinary form of the species.— iWa^am, VI. * 



Lichenalia concentrica. It is probably the under sur- 

 face of this bryozoan which is figured on page 153, and erro- 

 neously named Crania corrugata. (R. P. Whitfield.) 



Lichenalia? (Hall, Pal. N. Y. Vol. 1, 1847, genus in 

 Trenton and Hud. river.) Found in the Millertown Clinton 

 fossil ore bed, Perry Co., Pa. Claypole's specimen 46-5 ; and 

 at 1 m. N. of Dilville, Perry Co., in Chemung. Spec. 109-9 

 (perhaps wrongly labeled and placed)— Fr^; VIII g.— See 

 Appendix. 



Lima glaher. See Pernopecten glaber, VIII g. 



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