26 BULLETIN NO. 30, UNITED STATES NATIONAL MUSEUM. 



22. 



Meek, F. B., and Worthen, A. H. Descriptions of new Paleozoic fossils from Illinois 

 and Iowa. <Proc. Acad. Nat. Sci.Phila., vol. xiii, pp. 128-148. 18(51. Philadel- 

 phia. 1862, 



Genera Bursacrinns, Cardiopaia, Orthonema. Afterward republished iu the Illinoia Geolog- 

 ical Seports, vol. ii. 



Page. 

 Echinodermata : 



Orinoidea : 

 Platycrinug, Miller, 1821. 



P. oweni, n. 8., M. & W., 1861 128-129 



P. scoftma, n. s., M. & W., 1861 129 



P. (Pleurocrinus) agper,-a.s„M.&. W., 1861 129-130 



Forhesiocriniis, Koninck & Le Hon 130 



F. monroensis, n. s., M. & "W., 1861 130-131 



F. agassizi var. giganteus, n. s., M. & W., 1861 131 



Actinocrimis, Miller, 1821 131 



A. dodeeadactylus, n. s., M. AW., 1861 131 



A. pyri/ormis var. rudis, M. & W., 1861 131-132 



A. (Amphoracrinue 1) concavus, u. s.,M. & W., 1861 132-133 



A. (Pradocrinus I) ampJus, n. s., M. & W., 1861 133-134 



A. sillimani, u. s.,M. .SiW., 1861 134-135 



Agaricocrinus, Troost 135 



A. gracilis, n. a. , M. & W. , 1861 135 



Platycrinug -multi-branchiatug,ii. s., M. & W., 1861 135-136 



Cyathocrinus, Miller, 1821 136 



0.wach»r)iuthi,n. ».,VL. &."W., 1861 136 



Burgacrinus, n. g., M. & "W. , 186 1 136 



B. wachgmuthi, n. s., M. & W., 1861 137 



Poteriocrimtg, Miller, 1821 137 



P. ? enormia, U.S., M.&W., 1861 137-138 



P. swbinipressMS, r. s., M. & W., 1861 138 



P.tenuihrachiatug,-n.s.,M.&.W.,lSGl 138-139 



P.carinatus,ii.s.,M. & W., 1861 139-140 



Snbgeiins Scaphiocrinus, Hall, 1858 140 



P. (ficaphiocrinus ?) carbonarmg, n.s.,M. &; "W., 1861 140 



P. {Scaphiocrinus) solidus, ji.s^M. & W., 1861 140-141 



P. (Scaphiocrinus) wachsmuthi, n. 8.,M. & W., 1861 141 



Blastoidea : 



Pentremites, S.ay, 1820 141 



P.cornutus,ii.a.,M. & W., 1861 141-142 



P.melo yar. projectus, n. s., M. & ^.,1861 142 



Aster eidea : 



Petraster, Billings, 1858 142 



P.wilberamis,ji.a.,M.& W., 1861 142 



Mollusca i 

 Brachiopoda : 



ProdMC«H«, Sowerby, 1812 142 



P. magnus, n. s., M. & W., 1861 142-143 



Spirifera glabra var. contracta, n. a., M. & "W. , 1861 143-144 



Lamellibranchiata : 



* Gardiopsis, n. g.,M. &"W., 1861 144 



Leda, Schumacher, 1817 , , 144 



L. cwrto, n. 8.,M. Sc "W., 1861 144-145 



Oasteropoda- 



Dentalium, Lin., 1740 145 



jD. wnwstMm, n. 8.,M. & W., 1861 145 



Straparollus, Montfort, 1810 145 



S.simiUs,-n. s.,M. & W.,1861 145-146 



S.similiH v:\r.planus, M. & W., 1801 146 



* Cardinm and oi^i$, from its resemblanoe to Cardiam. 



