INDIANA PALEONTOLOGY. J97. 



Cidaroblastus is offered for Pentremitidea and Troostocrinus reinwardti. A strange idea to as- 

 sociate in the same genus such forms as Pentremitidea americana and Troontocrinu.i reimcardti, 

 Mesoblastus, E. & C. is retained and made to receive M. Glaber. Cidaroblastus is offered for 

 Granatocrinus, the latter name being objectionable on account of its ending. 



Two species are recognized C. granulatus and C. parvus-, N. Sp., the latter said to be from 

 eherty rock of the St. Louis age in South-western Missouri. We doubt the horizon and hardly 

 think the species could be identified from the figure and description, and await evidence that 

 the granules were for the reception of little spines. 



Globoblastus is a synonym for Orbilremites and is defective in diagnosis by reason of the 

 statement "Central opening never closed except by ambulacral integument," a very eiToneous 

 character since the ventral covering has been seen and figured. Orbitremites noncoodi and the 

 following new C?) species are placed under the spurious genus: G. magnificus a synonym of O. 

 noncoodi; G. ornatus, G. spathns, both probably mere varieties of 0. noncoodi, but non-recogni- 

 zable from the descriptions and drawings. 



Under Cribroblastus I omitted his two new (?) species, C. tenuistriatus a synonym of Loplw- 

 blastus inopinatus and C. sdmchefti a synonym of Granatocrinus spinuliferus, Rowley. He re- 

 tains the genus Codonites. His C. campanulatus is a synonym of C. stelliformis. la his diagno- 

 sis of Codonites, he says "Central opening very small and usually covered by the ambulacral in- 

 tegument," It is usually covered by small plates. 



The author does not disturb the name Codaster, which he retains as a genus. He should 

 have objected to the use of this word, as it would be more appropriate for a star fish. 



For Xueleocrinus or Elaeacrinus he proposes to resuscitate the name Olivanites. He places 

 M. & G.'s species Nucleocrinus venustus as a synonym under X. elegans a much smaller form. 



The genus Eleutherocrinus is converted into Eltxitheroblastus and two species recognized, E. 

 cassedayi and E. whitfieldi. The latter is an undoubted synonym of the former. 



