LIMAX. 35 



inches ; an individual kept in confinement with abun- 

 dance of food attained the length of nearly five inches, 

 and several others that of four inches. 



Geographical Distribution. Noticed hitherto m 

 Massachusetts at Boston and Cambridge ; in the cities 

 of New York, Philadelphia, ^d Baltimore ; in Virguiia 

 at Richmond, and at the University of Virginia. 



Remarks. The contrast of colors, and the elegant 

 arrangement of the spots and lines, render this a beauti- 

 ful species. The tubercles of the smface are very fine, 

 and so much compressed as to appear m some lights to 

 be carinated. There is often a well defined row of spots 

 down the back. The upper tentacles are long and deli- 

 cate, the mantle sometimes terminates posteriorly in an 

 obtuse point, and the locomotive baud of the foot is nar- 

 row and well defined. There is a prominent ridge on 

 the head and neck between the tentacles, and a furrow 

 marks the edges of the foot. It is active ui its motions, 

 turns rapidly, and often bends the body so as to form two 

 parallel fines. It does not secrete mucus so freely as 

 Limax agrestis. The carina is often yellowish. The 

 testaceous rudiment is oblong-oval, convex above and 

 concave below, thin and membranaceous in young indi- 

 viduals, with the superior surface smooth and covered 

 with a dehcate periostracum, and with the lower surface 

 uneven. No spiral arrangement is visible to the eye, 

 and it appears to be only a thin testaceous plate, im- 

 bedded in the mantle. In old individuals it attains a 

 greater thickness. 



