

584 



Repoet of the State Geologist. 



irregular distances. Mural pores and distinct well-developed 

 septa are absent." 



Fig. 160. Stenopora intercalaris . Surface and transverse section, xl8. 

 Fig. 161. Vertical section of same, xl8. 



Family Prasoporidae. 



This family includes the forms having cells with diaphragms 

 and cystiphragms, as in the Monticuliporid^, but in addition 

 there are mesopores, that feature separating the family from 

 MoNTicuLiPOKiD^. It iucludes the following genera: Aspidopoka^ 

 Ataotopoeella, Homotbypella and Pkasopoba. 



AspiDOPORA, Ulrich. 

 (Jour. Cin. Soc. l!^at. Hist., Yol. Y, p. 156. 1882.) 

 Type, Aspidopora areolata, Ulrich. 



Zoarium consisting of thin lamellar expansions, or of more 

 massive expansions formed by the superimposition of successive 



Fig. 162. Aspidopora elegantula, natural size. 

 Fig. 163. One of the areas, x9. 

 Fig. 164. A vertical section, xl8. 



