ECH INODERM ATA. 



Soc. Nat. Hist., vol. 3. [Ety. Jiubos, 



hump-backed; kustis, a bladder.] 

 Hybocystites problematicus, Wetherby, 



1880, Jour. Cin. Soc. Nat. Hist., vol. 



3, Trenton Gr. [Sig. problematical.] 

 Hydreioxocrixus, De Koninck, 1858, Bull. 



Acad. Royale Belgique, 2me serie, 



tome 3. Messrs. Wachsmuth & Spring- 

 er refer to this genus Zeacrinus 



acanthophorus, Z. armiger, Z. de- 



pressus, Z. discus and Z. mucrospinus. 

 Ichthyocrinus nobilis, Wachsmuth & 



Springer, 1878, Proc. Acad. Nat. 



Sci., Upper Burlington and Keokuk 



Gr. [Sig. noble.] 

 Iocrinus, Hall, 1864, Advance sheets, 24th 



Reg. Hep. N. Y. [Ety. io, in triumph ; 



Jcrinon, a lily.] 

 crassus instead of Heterocrinus crassus. 

 subcrassus instead of Heterocrinus, sub- 



crassus. 

 Lampterocrinus parvus, Hall, 1879, Desc. 



New Spec. Foss., Niagara Gr. [Sig. 



little.] 

 Lecanocrinus pusillus, Hall, 1863 (Cya- 



thocrinus pusillus) Trans. Alb. Inst., 



vol. 4, Niagara Gr. [Sig. very small.] 

 pusillus, Winchell & Marcy, syn. for L. 



pusillus. Hall. 

 Lecythiocrinus, White, 1880, Proc. U. S. Nat. 



Mus., vol. 2. [Ety. lekuthion, a small 



oil flask; krinon, a lily.] This name 



was preoccupied by Muller in 1858, 



and by Zittel in 1879. 

 . adarnsi, Worthen, 1882, Bull. No. 1, 111. 



St. Mus. Nat. Hist., Coal Meas. [Ety. 



proper name.] 

 olliculceformis, White, 1880, Proc. U. S. 



Nat. Mus., vol. 2, Upper Coal Meas. 



[Sig. like a little pot.] 

 Lepidesthes colletti, White, 1878, Proc. 



Acad. Nat. Sci., Keokuk Gr. [Ety. 



proper name.] 

 formosus, S. A. Miller, 1879, Jour. Cin. 



Soc. Nat. Hist., vol. 2, Keokuk Gr. 



[Sig. beautiful.] 

 Lichexocrixus affinis, S. A. Miller, 1882, 



Jour., Cin. Soc. Nat. Hist., vol. 5, 



Hud. Riv. Gr. [Sig. related to, from 



resemblance to L. crater iformis.] 

 dubius, S. A. Miller, 1880, Jour. Cin. 



Soc. Nat. Hist., vol. 3, Utica Slate Gr. 



[Sig. doubtful.] 

 pattersoni, S. A. Miller, 1879, Jour. Cin. 



Soc. Nat. Hist., vol. 2, Utica Slate Gr. 



[Ety. proper name.] 

 Lyriocrixus melissa instead of Rhodo- 



crinus melissa. 

 sculptus, S. A. Miller, 1882, Jour. Cin. 



Soc. Nat. Hist., vol. 5, Niagara or 



Low. Held. Gr. [Sig. sculptured.] 

 Macrostylocrixus fasciatus instead of 



Cyathocrinus fasciatus. 

 fusibrachiatus, Ringueberg, 1882. Jour. 



Cin. Soc. Nat. Wist., vol. 5, Niagara 



Gr. [Sig. from the fusiform arms.] 

 meeki instead of Actinocrinus meeki. 

 striatus var. granulosus, Hall, 1879, 28th 



Reg. Rep., Niagara Gr. [Sig. gran- 

 ulous.] 

 Marsupiocrixus tennesseensis instead of 

 Platycrinus tennesseensis. 



tentaculatus instead of Platycrinus ten- 

 taculatus. 

 Megistocrixus infelix, refer to Saccocrinus 

 infelix. 



marcouanus, refer to Saccocrinus mar- 

 couanus. 



necis, refer to Saccocrinus necis. 



nodosus, Barris, 1879, Proc. Davenport 

 Acad., Nat. Sci., Up. Held. Gr. [Sig. 

 nodose.] 



parvirostris is a syn. for M. plenus. 



pileatus, S. A. Miller, 1879, Jour. Cin. 

 Soc. Nat. Hist., vol. 2, Up. Held. 

 Gr. [Sig. covered with a cap.] 



spinosus should be stricken out. 

 Melocrintjs clarkei, Williams, 1882, Proc. 

 Acad. Nat. Sci., Chemung Gr. [Ety. 

 proper name.] 



obpyramidalis, Winchell & Marcy, 1865 

 (Actinocrinus obpyramidalis), Mem. 

 Bost. Soc. Nat. Hist., vol. 1, Niagara 

 Gr. [Sig. obpyramidal.] 

 Myelodactylus bridgeportensis, S. A. 

 Miller, 1880, Jour. Cin. Soc. Nat. 

 Hist., vol. 3, Niagara Gr. [Ety. prop- 

 er name.] 

 Oligoporus coreyi, Meek & Worthen, 1870, 

 Proc. Acad. Nat. Sci., Keokuk Gr. 

 [Ety. proper name.] 

 Ollacrinus, Cumberland, 1826, Appendix to 

 Reliquiae Conservata. Figured with- 

 out description, and subsequently de- 

 clared by Koninck & Lehon to be a 

 Rhodocrinus. Wachsmuth & Springer 

 claim priority for this name over Go- 

 niasteroidocrinus, without good rea- 

 son, however, and contrary to the 

 laws of nomenclature, as shown by 

 Meek in 111. Geo. Sur., vol. 2, p. 217. 

 Oxychocrinus asteriaeformis instead of For- 

 besiocrinus asteriaeformis. 



distensus, Worthen, 1882. Bull. No. 1, 

 111. St. Mus. Nat. Hist., Kaskaskia 

 Gr. [Sig. distended.] 



meeki, refer to Taxocrinus meeki, and to 

 Keokuk Gr. 



ramulosus instead of Forbesiocrinus ram- 

 ulosus. 



whitfieldi, refer to Taxocrinus whitfieldi. 

 Pachy Iocrinus, Wachsmuth & Springer, 1879, 

 Proc. Acad. Nat. Sci. [Ety. pachylos, 

 thick; krinon, a lily.] A proposed 

 subgenus of Poteriocrinus, founded 

 upon the form of the body. 

 Pal2Easter elarkanus^ S. A. Miller, 1880, 

 Jour. Cin. Soc. Nat. Hist., vol.' 3, 

 Hud. Riv. Gr. [Ety. proper name.] 



clarki, S. A. Miller, refer to Palaeaster 

 clarkanus. 



crawfordsvillensis, S. A. Miller, 1880, 

 Jour. Cin. Soc. Nat. Hist., vol. 2, 

 Keokuk Gr. [Ety. proper name.] 



dubius, Miller & Dyer, 1878, Cont. to 



