00 



DlOlTOSPONOin^E. 



Table Showing the Geological Distribution of the 



Dictyospongidai. 



2 

 3 

 4 

 5 

 G 

 7 

 8 

 9 

 10 

 11 

 12 

 13 

 14 

 15 

 16 

 17 

 18 

 19 

 20 

 21 

 22 

 23 

 24 

 25 

 2G 

 27 

 2.8 

 29 

 30 

 31 

 32 

 33 

 34 

 35 

 30 

 37 

 38 

 39 

 40 



NAME OF SPECIES. 



Dictyospongia Danbyi, McCov 



(SP.). ••; 



DJ Marcellia, Clarke (sp.). . . 



D. haplea, sp. nov 



D. sceptrum, Hall (sp.) 



D. lophura, sp. nov 



D. cliarita, sp. nov 



D. eumorpha, sp. nov 



I), sirfea, sp. nov 



I). Almondensis, sp. nov. . . . 



D.? bacteria, sp. nov 



D. stylina, sp. nov 



D. cylindrica, Whitfield (sp.) 

 D. Morini, Barrois (sp.) .... 

 Lysactinella Gebhardi, Girty 



L. perelegans, Girty 



Ilydriodictya patula, Hall (sp.) 



H. cylix, sp. nov 



H. nepbelia, sp. nov 



Prismodictya paltea, sp. nov. 



P. telum, Hall (sp.) 



P. baculum, Hall (sp.) 



P. speetabilis, sp. nov 



P. parallela, Hall (sp.) 



P. prismatica, Hall (sp.) 



P. Allegania, sp. nov 



P. choanea, sp. nov 



P. corynia, sp. nov 



P. lilitextilis, Hall 



P. banano, sp. nov 



P. amicitiiB, sp. nov 



P. auiopbia, sp. nov 



P. ptionia, sp. nov 



P. cercidea, sp. nov . , 



P. cithara, sp. nov 



P. narthecia, sp. nov 



P. Conradi, Hall (sp.) 



P. polybedra, sp. nov 



Gongylospongia Marsbi, sp. nov 

 Hydnoceras legatum, sp. nov . 

 H. gracile, sp. nov 



•From th'< PMiurnites da Cindroz, Fraoce. 



» 



5 



a. 



Hamilton 

 Group. 



X 

 X 

 X 

 X 

 X 

 X 

 X 



X 

 X 

 X 



X 

 X 



X 

 X 

 X 

 X 

 X 

 X 

 X 

 X 

 X 

 X 

 X 

 X 

 X 

 X 

 X 



