TAB. XLIII. 
Myacites modica, Bean, sp. Cornbrash (page 83). 
Homomya gibbosa, Sow., 
Pholadomya lyrata, Sow. 
sp. (Page 88.) 
Cornbrash (page $7). 
Thracia amygdaloidea, Zyc. Great Oolite (page 80). 
Homomya crassiuscula. 
An adult specimen, with the test preserved. 
page 112; Supplement, page 89. 
Part IT, 
