GrRABAU — FaTFNAS OF THE ILvMILToX GrROirP. 321 



Anthozoa : 



154 Zaphrentis simplex, rc 



155 Heliophyllum Halli. c 



157 Cystiphyllum Americanuni. rc 



158 Cystiphyllum conifollis. C 

 Aulopora. r 



Streptelasma rectum is abundant above and below this bed, but it has 

 not been found in the bed itself. 



Above the coral bed, Ambocoelia itmbonata becomes less abundant, and 

 Chonetes deflecta and C. mucronata increase in number. Spirifer consobrinus 

 also becomes more numerous. 



c. One foot of shale, calcareous and unevenly laminated. 



It contains : 

 Crustacea ; 



1 



Phacops rana. c 



Lamellib: 



ranchiata ; 



55 



Paheoneilo tenuistriata. c 



56 



P. fecunda. rc 



Brachiopoda : 



78 



Craniella Haniiltonia?. r 



79 



Phollidops Haniiltonia?. r 



91 



Stropheodonta perplana. 



96 



Chonetes mucronata. c 



97 



C. deflecta. C 



100 



C. lepida. r 



105 



Spirifer mucronatus. E, 



108 



S. consobrinus. c 



110 



S. audaculus. rc 



116 



Amboccelia umbonata. c 



119 



Cyrtina Hamiltonensis. R 



121 



Athyris spiriferoides. r 



127 



Camarotoechia Horsfordi. 



131 



Liorhynchus multicostus. 



Anthozoa ; 



152 



Streptelasma rectum, rc 





21 



