ANNULATA. 



35 



These tubes are fixed by the lower extre- 

 mity, or more completely by other parts, to 

 marine substances, and are either grouped or 

 solitary. The greater number of species are 

 found in the seas of Europe. The animal feeds 

 on aquatic animalculse. 



10. Vermilia. — 

 Tube testaceous, cy- 

 lindrical, gradually 

 lessening at one end, 

 more or less twisted, 

 and fixed at the base 

 to marine substances. Aperture round, and 

 having several teeth. — There are 8 recent 

 species. 



The tube of the Vermilia is said to have a 

 convex, orbicular, and sometimes conical oper- 

 culum. It is found on stones, shells, fuci, &c. 



11. Galeolaria. — Tube 

 testaceous, cylindrical, rather 

 angular, fixed at the base, with 

 the other end raised. Aper- 

 ture orbicular, and formed of 

 from five to nine little valves 

 on the upper side, the whole 



D 2 



