134 INTRODUCTION TO CONCHOLOGY. 



lip_, which extend half-way round the operculum, and serve 

 as an anchor, whereby to moor liimself securely to his 

 resting-place. 



A very handsome species, closely allied to the foregoing, 

 was found by Mr. Adams, crawling languidly on the 

 leaves of the Pontedera, as also on sedges in marshy places 

 along the banks of rivers in several parts of Borneo, and 

 many miles in the interior, where the water was perfectly 

 fresh. The eye of this mollusk is terminal, and the pro- 

 boscis marked with crimson and yellow. The foot is dark 

 brovrn, and a vivid scarlet line extends round the lower 

 margin. 



Family YI. Parasitic^v. 



Look on the Lesser Dodder, whose bright web 

 Is flung at random, yet with peerless taste. 

 On shrub or rock, where low the bramble creeps : 

 And such the mollusk which doth fix her home 

 Within the shelly rays of some meek star-fish, — 

 Strange dweller, yet with wondrous skill to frame 

 A small thin turbinated shell, fi'om whence 

 She looketh forth, unvexed by winds or storms. 



Animal marine, parasitic, living imbedded in the soft 

 parts of the star-fish, and forming a thin hyaline turbinated 



