TEBENNOPHORUS. 25 



face covered with elongated and slightly prominent 

 glandular projections, the furrows between indistinct. 

 Respiratory orifice very minute, situated on the right 

 side, about one-eighth of an inch behind the insertion of 

 the superior tentacle. The mantle is closely connected 

 with the body. 



Length three-fourths of an inch. 



GEOGRAPHICAL DISTRIBUTION. Noticed hitherto only 

 in Vermont and Massachusetts. 



REMARKS. This animal is found in woods and forests, 

 in the soil under decaying trunks and logs. It is lubri- 

 cated by a watery mucus which is not secreted in quan- 

 tity sufficient to preserve its life when removed from its 

 native haunts and exposed to the air. It is even difficult 

 to preserve it long enough for examination, as it becomes 

 dry, diminishes in bulk more than one-half, and dies. 

 We have seen but three specimens. They were very 

 active in their movements, and one of them suspended 

 itself by a thread of mucus, in the manner of the Lima- 

 ces. Our specimens were found in Vermont. Dr. Gould 

 has recognized this or a similar species near Boston. 



It is quite possible that this is one of the species de- 

 scribed by Rafinesque, but from the poverty of his descrip- 

 tions, we are unable to identify it with either of them. 



When we for the first time procured this animal, not 

 being able to distinguish the separation of the margin of 

 the mantle from the edge of the foot, we felt assured 

 that it must be a species of M. Rafinesque's genus Philo- 



VOL. II. 4 



