No. 36. SABELLA. 

 Concrete Shell. Inhabitants various, as Nereis, Amphitrite, fyc. 



Sabella with vingent mouth, and two thicker tentacula behind the head; 

 shell tubulous, composed of particles of sand, broken shells, and vegetable 

 substances, united to a membrane by a glutinous cement. 



Of the Greuelian System, twenty-five species of Sabella, the fresh water 

 kinds,. described by Schroetten, being included. The marine Sabella shells 

 are composed chiefly of sand and the fragments of shells; those of the supposed 

 Sabella, found in fresh water, of the small fragments of testaceous Vermes, 

 particularly Helices. 



It is not at present determined, by the most able conchologists, whether 

 this genus has a claim to its present situation among testaceous shells; but, as 

 no better or more natural situation has been assigned to it, we leave it as pre- 

 viously arranged. These species are found in the sea, and also in fresh water 

 ditches; sometimes affixed to rocks and shells, and at others buried in mud 

 and sand. 



Family 1st. Composed of grains of sand, stones, or shells. 



Scientific name. 



Scruposa, 



Scabra, 



Alveolata, 



Chrysodon, 



Belgeca, 



Rectangula, 



Capensis, 



Nigra, 



Stagnalis, 



Conica, 



Uncinata, 



Locality. 

 India, American Islands. 

 America. 

 Europe. 



Eu. and Indian Seas, 

 do., Coasts. 



Cape of Good Hope. 

 Thuringia. 



do. 

 Jena. 

 Thuringia. 



Scientific name. 

 Sabulosa, 

 Ammoniata, 

 Helicina, 

 Dimidiata, 

 Fixa, 

 Clavata, 

 Marsupialis, 

 Norwegica, 

 Lumbricalis, 

 Indica, 



Locality. 

 Thuringia, Belgium. 



Thuringia. 



do. 



do. 



do. 



do. 

 Norway. 

 Greenland Seas. 

 Indian Ocean. 



Vegetabilis, 

 Corticalis, 



Family 2d. Composed of vegetable substances. 



Thuringia. 

 do. 



Arundinacea, 

 Aculeata, 



Thuringia. 

 do. 



