82 LESSON XI. 



India. Its inhabitant is said to be of a poisonous 

 nature, and to wound with its pointed proboscis 

 whoever ventures to touch it. 



VOLUTA Musica. 



MUSIC SHELL. 



Specific character. Shell oval, with pointed 

 tubercles on the whorls ; aperture emarginate,* 

 columella with eight plaits ; outer lip smooth 

 and thick ; shell two or three inches in length, 

 colour white or buff; it is remarkable for its 

 dark markings, arranged like a stave in music, 

 in parallel lines, upon which are spots resem- 

 bling the notes ; from this appearance it derives 

 its name. 



VOLUTA Pyrum. 



TURNIP VOLUTA. 



Specific character. Shell pear-shaped, ponde- 

 rous, smooth, canal iculated, striated, and slightly 

 nodulous transversely ; spire acute, columellar 

 lip with three plaits ; colour dirty white ; the 

 young shells are yellowish, and have irregular 

 transverse rows of dark spots. The size of the 

 perfect shell is about five inches long, and about 

 half as broad. 



Ernarginate, notched, or having the margin excavated by a 

 sinus. 



