35 



This animal also possesses two protuberant calcare- 

 ous tubes, covering parts of its body at the open end 

 of the tube, each of which is terminated with from 

 five to eight cup-shaped calcareous or corneous ap- 

 pendages, piled one above the other. It inhabits the 

 sand, and perforates wood, stones, and sometimes 

 shells. 



Fistulana clava Fistulana gregata 

 corniformis lagenula. 



^WIffP««l»SfS9 



SEPTARIA. 



SERPULA POLYTHALAMIA LinnCBVLS. 



Mart. tab. I, Jig, 1,6, #11. 

 A very long testaceous tube gradually attenuated to its 

 upper end, and divided interiorly by vaulted divisions, 

 seldom complete, the extremity of which is terminated 

 by two slender tubes without any interior partitions. 

 This sheath, no doubt, incloses a bivalve shell at its 

 end; but it has not yet been found quite perfect. — 

 The only species mentioned by La Marck is the 

 Septaria arenaria. 



d 2 



