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 in 

 Massachusetts at Boston and Cambridge ; in the cities 

 of New York, Philadelphia, and Baltimore ; in Virginia 







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 surface are very fine, 

 and so much compressed as to appear in some lights to 

 be carinated. There is often a well defined row" of spot.-: 

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

 cate, the mantle sometimes terminates posteriorly in an 

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

 row and well denned. 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 in its motions, 

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

 parallel lines. It does not secrete mucus so freely as 

 Li max agrestis. The carina is often yellowish. The 

 testaceous rudiment is oblong-oval, convex above and 

 concave below, thin and rnembranaceous in young indi- 

 viduals, with the superior surface smooth and covered 

 with a delicate periostracurn, 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. 



