460 PHILOMYCIDiE. 



median projection, though sometimes bluntly prominent. Extremi- 

 ties attenuated. The whole anterior surface covered with convere;- 

 ing vertical striee and arched strife. 



Lingual membrane with one hundred and fifteen rows of one 

 hundred and thirteen teeth each (56 - 1 - 56) ; centrals conical, sur- 

 mounted by a sharper point ; laterals of the same shape, but nar- 

 rower, becoming modified into bicuspid and papilkc-like uncini. 



Of the synonymes 1 have quoted, Limax togala is said by Gould 

 (Otia, 182) to be identical; and Limax marmoratus of De Kay I 

 have ascertained to be the same from the correspondence of my 

 father with Dr. Newcomb. 



Tebennophorus dorsalis. 



Body cylindrical and narrow, terminating posteriorly in an acnte point ; mantle 

 closely connected with the body; base of loot very narrow, its separation from 

 the body not well defined. 



PhilomycHs dorsalis, Binney, Bost. Journ. Nat. Hist. iv. 174- (1842) ; Pro(\ Bost. Soc. N. 



H. 1841, 52. — Ad.yms, Veniioiit iMoll. 1G.3 (1842). — Giiay and Pfeiffek, Brit. 



Mas. Cat. 159. 

 Limax dorsalis, De Kay, N. Y. Moll. 22 (184.3). 

 Tebenimphonis dnrsalis, Bixney, Turr. ]\[ull. ii. 24, pi. 63, fig. 3 (1851). — W. G. Binney, 



Terr. Moll. iv. 31. 

 Pallifera dorsalis, Morse, Journ. Portl. Soc. i. 8, fig. 5 ; pi. 3, fig. G (18G4). 



Color of upper surface ashy, with a shade of blue, an interrupted 



black line extending down the centre of the back ; eye-peduncles 



black, about one eighth of the length of the liody ; 



tentacles blackish, very short. Body cylindrical 



and narrow, terminating posteriorly in an acute 



T. dorsalis. n i • 



point ; base of foot white, very narrow, its separa- 

 tion from the body not well defined. U])per surface covered with 

 elongated and slightly prominent glandular projections, the furrows 

 between indistinct. Ilespiratory orifice very minute, situated on 

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

 the eye-peduncle. The mantle is closely connected with the body. 

 Length, eighteen millimetres. 



Vermont and Massachusetts. 



This animal is found in woods and forests, in the soil under de- 

 caying trunks and logs. It is lubricated by a watery mucus, which 

 is not secreted in quantity sufficient to preserve its life when re- 

 moved from its native haunts and exposed to the air. It is even 

 difficult to preserve it long enough for examination, as it becomes 



