22 LIMACID^. 



curved furrow, running upwards and backwards. Lo- 

 comotive band not distinguished from the lower surface 

 of the foot. 



Greatest length, when fully extended, four inches ; 

 ordinary length three inches. 



Geographical Distribution. Noticed by the origi- 

 nal discoverer in South Carolina ; is common in Ver- 

 mont, the western part of Massachusetts, New York, and 

 Ohio, and was found in Rlissouri by Professor C. B. 

 Adams, and by Mr. Haldeman in the south-western angle 

 of Virginia. 



Remarks. In this species the head never projects 

 beyond the mantle. The tentacles are contractile and 

 retractile, as in the other slugs. When handled it 

 secretes from the skin a thick, milky, adhesive mucus. 

 Small individuals suspend themselves by a thread. We 

 have noticed its posterior extremity curved upwards when 

 the animal was in motion ; at other times flattened and 

 expanded, and again very much corrugated, and appa- 

 rently truncated ; sometimes there appear to be one or 

 more mucous glands at this part, and the secretion of 

 mucus from it is more plentiful than from other parts 

 of the body. The mantle is not cleft from the respira- 

 tory foramen to the margin, as in most of the Limacidae, 

 but is provided with a deep furrow or canal running from 

 •the orifice to the edge of the mantle below it. 



It is very inactive and sluggish in its motions. It 

 inhabits forests, under the bark, and in the interior of 



