124 TESTACELLID^. 



The American forms are said to be most frequently found 

 partly buried in damp earth in the woods of Brazil ; the 

 West-Indian species were discovered by M. Blanner crawl- 

 ing at night, and in the morning, on the trunks and foliage 

 of the Bananas or Plantains. From an examination of 

 the armature of the tongue, in which the lateral teeth 

 are subulate and arched, Mr. Shuttleworth concludes these 

 animals to be carnivorous. 



Species of PeJtella. 



albopunctulata, Shuttl. flavolineata, Shuttl. 



aperta, Beck. nigrolineata, Shuttl. 



Cumingii, Pj'eiff. pallidum, Ferns. 



Fam. TESTACELLIDjE. 



Animal elongated and slug-like. Lingual membrane 

 broad ; teeth numerous, in several diverging cross series, 

 pin-shaped, slightly curved, with a roundish head and an 

 acute tip, only attached to the lingual membrane by a small 

 central process. Eye-peduncles moderately long ; tentacles 

 short. Mantle habitually concealed under the shell; re- 

 spiratory orifice situated behind and below the shell, on the 

 posterior part of the thickened mantle-margin. Repro- 

 ductive orifice behind and near the right tentacle. 



The animals of this family, as might have been expected 

 from the nature of the armature of the lingual membrane, 

 are carnivorous in their habits, living chiefly on worms, 

 which they often swallow whole ; they are subterranean, 

 living near the surface in the summer and crawling on the 

 ground in autumn, but entirely burying themselves during 

 the winter. 



