PLATE XXIII. 
ISOCARDIA COR. 
IsocARSiA cor. Lam. Syst, vi. partie ii. p. 30. From Bear Haven, Ireland ; in Dr Goodall's Cabinet. 
Chama cor, Mont. Test. Brit. p. 134. — Mat. and Rack, in Lin, Tr, viii. p. 90.— Donov. Brit. Sh. pi. 134,- 
Billrv. Cat. p. 212. 
PLATE XXIV. 
ISOCARDIA COR. 
