LIMAX. 145 



sallow white. Body when extended cylindrical, elongated, terminating acutely 

 with a short but prominent keel ; upper part covered with long and narrow 

 prominent tubercles. Mantle ample, oval, rounded at both ends, with numer- 

 ous verv fine concentrical striae. Sides paler, and without spots. Respiratory 

 foramen larr>-e, placed near the posterior lateral margin of the mantle and cleft 

 to the edge. Generative orifice indicated by a white spot a little behind the 

 eye-peduncle of the right side. Length, when fully extended, usually about 

 75 mill. ; an individual kept in confinement with abundance of food attained 

 the length of nearly 125 mill., and several others that of 200 mill. 



Umax flavns, LINNAEUS, Syst. Nat. [x.], 1758, I. p. 652 (not MULLEE, 1774). - 

 BINNEY, Bost. Journ. Nat. Hist., IV. 164 (1842). DsKAY, N. Y. Moll., 21, 

 PL I. Fig. 5 (1843). GRAY and PFEIFFER, REEVE, etc. TUYON, Am. 

 Journ. Conch., III. 314 (1868). W. G. BINNEY, L. & Fr.-W. Sh., I. 61 (1869). 

 -GOULD and BINNEY, Invert, of Mass., ed. 2, 410 (1870). 



Umax variegatiis, DRAPARNAUD, Tabl. Moll. 103 (1801). FERUSSAC, MOQUIN- 

 TANDON. BINNEY, Terr. Moll., II. 34, PI. LXV. Fig. 1 (1851). LEIDY, 

 anat, T. M., I. 248, PL I. (1851). 



An introduced species, noticed hitherto in Massachusetts at Boston and Cam- 

 bridge; in the cities of New York, Philadelphia, and Baltimore; in Virginia 

 at Richmond, and at the University of Virginia; in Athens and Savannah, 

 Ga. ; Graniteville and Charleston, S. C., and at other cities. It is also found 

 in Europe, Syria, and Madeira. 



The contrast of colors and the elegant arrangement of the spots and lines 

 render this a beautiful 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 spots down the back. The eye-peduncles are long and 

 delicate, the mantle sometimes terminates posteriorly in an obtuse point, and 

 the locomotive band of the foot is narrow and well defined. There is a promi- 

 nent ridge on the head and neck between the eye-peduncles, 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 Limax ar/restis. The carina is often yellowish. The testa- 

 ceous rudiment (Vol. I. PI. I. Fig. V) is oblong-oval, convex above and con- 

 cave below, thin and membranaceous in young individuals, with the superior 

 surface smooth and covered with a delicate pcriostracum, and with the lower 

 surface uneven. No spiral arrangement is visible to the eye, and it appears to 

 be only a thin testaceous plate, imbedded in the mantle. In old individuals it 

 attains a greater thickness. 



It inhabits cellars and gardens in moist situations in the cities. It is con- 

 sidered noxious to vegetation. It feeds upon the leaves of plants in kitchen 

 gardens, and upon the remains of the cooked vegetables and bread thrown 

 out from houses. Its most common habitat is in cellars, where it makes its 

 presence most disagreeable by attacking articles of food, and especially by in- 



VOL. IV. 10 



