Synoptic List of Genera and Species of the Dictyospongidae. 



Subkingdom 

 SPONGIyE. 



Class 

 SILICEA, Gray. 



Order 

 HEXACTINELLIDA, O. Schmiot. 



Suborder 

 LYSSACINA, ZiTTEL. 



Family 

 DICTYOSPONGID^, Hall. 



Subfamily DICTYOSPONGIINiE, subfam. nov. 

 Genus Dictyospongia, gen. nov. 



D. Danbyi, McCoy (sp.). D. siraea, sp. nov. 



D.? Marcellia, Clarke (sp.). D. Almondensis, sp. nov. 



D. haplea, sp. nov. D. bacteria, sp. nov. 



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



D. lophura, sp. nov. D. cylindrica, Whitfield (sp.). 



D. charita, sp. nov. D. stylina, sp. nov. 



D. eumorpha, sp. nov. 



Genus Lysactinella, Girty. 



L. ' Gebhardi, Girty. L. perelegans, Girty. 



Genus Hydriodictygi, gen. nov. 

 H. patula, Hall (sp.). H. nephelia, sp. nov. 



H. cylix, sp. nov. 



Genus Prismodictya, gen. nov. 



P. palsea, sp. nov. P. banano, sp. nov. 



P. telum, Hall (sp.). P. amicitiae, sp. nov. 



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