186 HELICID^. 



40. HELIX AURICULATA, SAT. 



Plate XL. 



H. testa depressa, subtus convexa, corneo-rufescente ; 

 anfractibus striatis, striis distinctis, crebris, elevatis ; aper- 

 tura auriculata, angustissima, contortuplicata, ringente, mar- 

 ginibus connexis ; columella plica reflexa, dentlformi, in 

 aperturam intrante ; labro supra eminente, subtus ad basim 

 appresso, interne bi-plicato ; umbilico aperto. 



STNONYMS AND HEFEKENCES. 



Folygyra auriculata. Say, Nich. Encyc. IV. ; Journ. Acad. I. 277. 

 Hdlx auriculata, Ferussac, Tab. Syst. 37 ; Hist. pi. 50, f. 3, 4. 



Deshayes in Lamarck, VIIL 112. 



BiNNEY, Boston Journ. Nat. Hist. IIL 384, pi. 19, f. 1, 2. 



Chemnitz, 2 ed. tab. 65, f. 3, 4. 



Pfeiffee, Monog. Helic. Viv. \. 417. 

 Polygyra avara, Say, Nich. Encyc. IV. ; Journ. Acad. I. 277. 



Ferussac, Tab. Syst. 37 ; Hist, pi 50, f. 2. 

 Stenotrema aTara, Hartman, Erd und Susswasser Gasterop. p. S4, tab. 22. 

 Helix Sat/ii, Wood, loc. cii. Sup. pi. 7, f. 34. ? 



DESCRIPTION. 



Animal longer than the breadth of the shell, acute 

 behind, above granulated and blackish, beneath and each 

 side -white ; upper tentacles long, slender, and tapering ; 

 lower ones short, and of nearly equal diameter.* 



Shell depressed, very slightly convex above, below 

 convex ; epidermis brownish horn-color ; whorls more 

 than five, a little rounded, crossed by numerous distinct, 

 equidistant, oblique striae ; the upper part of the last 

 whorl, near the mouth, is suddenly reflected from the 



* Say, in Nicholson's Encyclopedia, American edition. Vol. IV. 



