PROCHORDATA. 



729 



Tabulation of structures concerned in the formation of the anterior trematic complex of the 

 Prochordata, consisting of organs which are probably homogenetic and of their connections which are 

 presumably related through metaleptic succession or substitution. 



Having obtained the necessary permission from the authorities of the French 

 administration I left Noumea on July 18 on board a local steamer for the Isle of Pines, 

 accomplishing the journey of 65 miles in nine hours. The southern coast of New 

 Caledonia is studded locally with forests of Araucaria, and the Isle of Pines is a hilly 

 satellite of the larger island, and likewise affords some exquisite coast scenery. It is used 

 as a penitentiary establishment, the native population being confined to a reservation on 

 one side of the island, the most picturesque side, where it is controlled by the Mission 

 authorities under the direction of Pere Lambert, who is a renowned conchologist. I paid 



