TEBENNOPIIOnUS. 299 



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. 



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



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

 distinct line down the middle of the back. 



The appearance of the surface of the mantle is constantly 

 changing, from the play of light on its lubricated eye-peduncles, 

 tentacles, and furrows, which are in almost ceaseless motion. 



There can be no doubt that this is the animal oi'iginally de- 

 scribed by Bosc under the name of Limax carolinensis, 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 Ferussac's work, is a tolerably accurate 

 representation 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 confineoicnt, deposited 

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

 made their way out of the shell. The eggs were semi- 

 transparent, oval, about one-fifth of an inch in the greatest 

 diameter. The young when excluded were more than a fourth 

 of an inch long, semitransparent and gelatinous; eye-peduncles 

 and tentacles bluish-black at base, black at tip, the latter very 

 minute and hardly visible. Body broad ; back whitish, with two 

 distinct rows of minute black dots down the middle, and other 

 scattering spots on the sides. No perceptible furrow between 

 the mantle and body. They increased very rapidly 

 in size, and in a few days were four times as large 

 as when hatched. 



Jaw short, broad, arched, light horn-colored ; 

 anterior surface convex, but having no distinct Jaw of 



vertical carina on the centre, its most anterior Tehennfyjihorv^ 



carolinensis. 



point. Concave margin irregular, without a dis- 

 tinct acute median projection, though sometimes bluntly promi- 

 nent. Extremities attenuated. The whole anterior surface 

 covered with converging vertical striaj and arched strife. 



Lingual membrane with 115 rows of one hundred and thirteen 

 teeth each (56 — 1 — 56); centrals conical, surmounted by a 



