140 



UNIVALVES. SABELLA. 



ance of honey-combs. It is an inhabitant of the Europe- 

 an coasts, and covers the rocks for a considerable space, 

 and is easily broken under the feet. The tubes are straight- 

 ish, and from two to three inches long. The S. rectan- 

 gula is one of the largest of the genus, and often measures 

 nine inches in length. 



There are no less than fourteen or fifteen species which 

 inhabit rivers and fresh-waters; and most of them are 

 from the waters of Thuringia and Belgium, where tliey 

 are affixed to stones, &c. The olher species are from the 

 Indian, American, Northern, and European seas. 



SABELLA. 



Scruposa — White-sandy. 

 Scabra — Rough. 

 *Alveolata — Haney-comb. 

 Chrysodon — Pebble. 

 *Belgica — Granulated. 

 Rectangula — Rectangular 

 Capensis — Cape. 

 Nigra — Black. 

 Stagnalis — River. 

 Conica — Conic. 

 Uncinata — Hooked. 

 Sabulosa — Gravel. 



Vegetabilis — Vegetable. 

 Amraoniata — Ammonites. 

 Helicina — Helix. 

 Dimidiata — Divided. 

 Fixa — Stony. 

 Clavata — Club-shaped. 

 Corticalis — Bark. 

 Arundinacea — Reed. 

 Aculeata — Twig. 

 Marsupialis — Sooty. 

 Norwegica — Norway. 

 L umbr icalis — Cork-screw. 

 Indica — hidian. 



THE END. 



