PLATE LXXIX. 



Porlttx duerdoii, new species. 



Paga 

 Ki}r- 1, general view of the eoralUnn, nat. .size; fig. la, longitudinal t^eetion, X 6. (For calicef^, 



see riateLXXVIII, fig. 3) 193 



380 



