TEBENNOPHORUS. 23 



the decayed trunks of fallen trees, among which it is par- 

 ticularly partial to the Bass-wood, Tilia Americana. 



The variations from the common coloring are nume- 

 rous. We have already observed the following varieties : 



a. Whitish, without clouded spots, tending to grayish. 



b. Whitish, slightly clouded longitudinally. 



c. Irregularly clouded with brownish, without any 

 tendency to longitudinal arrangement. 



d. With three distinct rows of large clouded spots. 



e. With great numbers of fine black spots. 



/. Gray, with a line of minute black dots along each 

 side. 



g. Blackish-gray, with black lines along each side, and 

 an indistinct line down the middle of the back. 



The appearance of the surface of the mantle is con- 

 stantly changing, from the play of light on its lubricated 

 tentacles and furrows, which are in almost ceaseless 

 motion. 



There can be no doubt that this is the animal origi- 

 nally described by M. Bosc under the name of Limax 

 Caroliniensis, though his description is so imperfect that 

 it can only be recognized by the arrangement of colors 

 which belongs to it. His original drawing, engraved in 

 M. Ferussac's work, is a tolerably accurate representa- 

 tion of one of its varieties. He makes no mention of 

 the mantle, and it does not appear in the figure. 



An individual of this species kept in confinement, 

 deposited about thirty eggs, June 20, 1843 ; on the 10th 

 July the young made their way out of the shell. The 



