268 



name Carpentaria, after Dr. William Carpenter, who has paid so 

 much attention and has been so successful in elucidating the struc- 

 ture and organization of these animals, and who is also the son of 



Carpenteria. 



Fig. 1. Exterior surface complete. 



Fig. 2. Partly eaten off by acid. a. Complete. 



Fig. 4. 



Fig. 3. 



& 



Fig. 3. Cross sunken cells, showing the spicula in the cells. 



Fig. 4. Part of Fig. 3, more magnified, a. Outer parietes of cells. 



my very dear friend Dr. Lant Carpenter, and the brother of Mr. 

 P. P. Carpenter, to whom we are much indebted for the collection 

 of Magellan Shells and the catalogue that accompanied it. 



I shall merely give a slight description of the genus, sufficient to 



