170 



Bub-polygonal irregularly disposed 

 cell apertures, with moderately 

 strong nodose or spinulose peri- 

 stomes; mesopores with marginsof 

 same height asthe peristomes, with 

 km: ci FixtvMporina minvta. minute nodes at the angles; low 



Portion of surfa alargea, x is <=> 



(aft.-r naii and Simpson) rounded monticules, witli apertures 



and mesopores like those on the rest of the frond. 



Found in the •■Hamilton group, at West Hamburg, Erie 

 County. X. Y." ( Hall, explanation of pjates. ) 



FlSTULIPORINA DIGITATA. ( Hall. ) ( Fig. 65. ) ( Pal. X. '*. .. 



Vol. VL.p. 229, PI. LIX.) 



Distinguishing Characters— Thin, lamellate expansion of 

 incrusthui- frond: finger-like growth (digitate expansion): 

 V..^^^>i closely and irregularly (sometimes 



qtoseil oval 



Dth, slightly 



minute mesopores. 



■if :■&¥!$* '. usually in a single series between aper- 



Fl(i. 85. Fixtxlipiiruta iliqi . , , 



tote. Portion of the surface tares: numerous strong conical nodes. 



enlarged, x i* (after Hall ami 



Simpson). occupying places oi mesopores. 



Found in the ••Hamilton group, at West Hamburg, Erie 

 County, X. V." (Hall.) 



Genus PALESCHARA. Hall. 



[Ety. : Paiaios, ancient; escluira, scar; Eschara, a genus of Bryozoa.] 



(1872: 26th Ann. Rep't X. Y. State Mus. Nat. Hist., p. 107.) 



"Zoarium consisting of thin expansions incrusting other 

 bodies. Cells polygonal, in contact, with frequent maculae 

 (or monticules) of larger cells." (Hall. Pal. X. Y.. Vol. VI.. 

 p. xviii.) 



Paleschara [NTERCELLA. Hall. (Notfigured.) (3d Ann. 

 Rep'1 X. Y. State Geol., p. 5.) 



Distinguishing Characters.— Extremely thin, incrusting 

 corals, etc.: cells in contact, irregularly or diagonally dis- 

 posed : quadrangular, square, or oblong, smaller interstitial 

 cells; broad, slightly elevated monticules, with larger cells 



