132 THE DEVONIAN OF MISSOURI. 



COELENTERATA 



Class ANTHOZOA 



Several species of corals are represented by fragmentary specimens. 



Cyathophyllum halli Edwards and Haime is represented by one specimen from the 

 sandstone member of the St. Laurent of Little Saline Creek 



Favosites limitaris Rominger is represented by fragments from the St. Laurent lime- 

 stone of Little Saline Creek. 



Zaphreniis, Cyathophyllum, Cystiphyllum, Dendropora and Heliophyllum are other 

 genera that are present. 



In order to get materials for an adequate treatment of the corals a great deal of 

 collecting would be necessary and a thorough study would require much more time than 

 the writers have available. 



ECHINODERMATA 



Class BLASTOIDEA 



Order Eublastoidea 



Family Nucleocrinidae 

 Genus Nucleocrinus Conrad 



Nucleocrinus verneuili (Troost) 



Synonomy and description on pages 57-59 



Figures on plate 8 



Remarks — This species is abundant in one thin member of the Grand Tower on 

 Little Saline Creek. Some of the specimens are very well preserved. 



MOLLUSCOIDEA 



Class BRYOZOA 



Fragments of two or three bryozoans have been collected from the St. Laurent 

 but they are too imperfect for determination. 



Class BRACHIOPODA 



Order Neotremata 

 Superfamily Craniacea 



Family Craniidae 

 Genus Crania Retzius 



Crania 



Fragments of unidentified species of this genus have been found in the Beauvais 

 sandstone of Little Saline Creek, Ste. Genevieve County. 



