PLATE 42, 43, 44. 
p. 43 — FIG. 1,2. 
ERISMATOLITHUS Milleporites? (Flustriformis) 
plano-foliaceus reticulatus, poris minutis subobsoletis 
sparsis. S. p. 
A fossil coral. Original a Plano- foliaceous, 
or flat, and thinly expanded, like a leaf; its form or outline 
uncertain*; its fabric open and reticulated, somewhat re- 
sembling, in strueture, the corallines distinguished by the 
title oiflusti'te. The surface of the fibres forming the reticu- 
lation, roughened with minute, indistinct, scattered pores; 
not, however, visible without the assistance of a magnifier. 
Common in limestone about Middleton. 
Fig. 1, 2. Are in grey limestone. The petrifaction itself 
a white, chalky spar. A magnified portion of one of these 
specimens will be found in Tab. 45. *. 
p. 43 — FIG. 3, 4. P. 44 — FIG. 5. 
ERISMATOLITHUS Madreporites (Jioriformis) 
aggregatus, stirpibus scapiformibus prismaticis striatis 
incequilateris coadunatis, stellis confertis: centre sub- 
exerto contorto. S. p. 
u 
* All the specimens I have yet collected appear to be only fragments or 
portions of the original. 
