300 



LAND AND FRESH-WATER SHELLS OF N. A. [PART I. 



sharper point ; laterals of the same shape, but narrower, becom- 

 ing modified into bicuspid and papillae-like uncini. 



Fig. 534. 



Lingual dentition of Tehennophorvs ciroHnensis. 



Of the synonyms I have quoted, Limax togafa is said by Gould 

 (Otia, 182) to be identical ; and Limax marmoraius, of DeKay, 

 I have ascertained to be the same from the correspondence of my 

 father with Dr. Newcomb, 



Fig. 535. 



Tebennophonis dorsalis, Binnet. — 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 body ; tentacles blackish, very short. Body cylindrical and narrow, 

 terminating posteriorly in an acute point ; base of foot 

 white, very narrow, its separation from the body not 

 well defined. Upper surface 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 eye-peduncle. The mantle ia 

 closely connected with the body. Length IS mill. 



Tfbennophorus 

 dorsaliM. 



