COLIMACEA. MOLLUSCA. AURICULA. 199 



AURI'CULA DENTICULA'tA. 



Shell ovate-conical, smooth., reddish horn-color ; spire elevated 

 and pointed ; inner Up with three teeth ; lip rejlexed. 



Figure 129. 



State Coll., No. 84. Soc. Cab., No. 1220. 



Voluta denticulita, Montagu ; ' Test. Brit., 234, pi. 20, f. 5. Maton and Rack- 



ZTT ; Lin. Trans., viii. 130. Dillwyn; Catal.,i. ^16. Turton ; Conch. Diet., 



249. Bkkkei.y; Zool. Journ., v. pi. 19, t". 3, (animal.) 

 Actason denticulatus, Fleming ; Brit. Jlnim., 337. 



Jaminea denticuikta, Leach ; Brown ; Conch, of Great Brit., <^c. , pi. 51, f. 6. 

 Conovulus denticulatus, Gray ; in Turton' s Manual, 225, pi. 12, f. 144. 

 Auricula myosotis, Jeffreys ; Lin. Trans,, xvi. 3G8. Draparnaud ; Hist, des 



JJfoZZ., pi. 3, f. IG to 17. Lam.; .4n. sans Vert., viii. 330. Blainv.; Malacol. 



pi. 37, bis, f. 6. 

 Cary'chium personatum, Mich add ; Compl. d, Drap., 73, pi. 15, f. 42 to 43. 

 Auricula personita, Deshayes ; Lam. ; Jin. sans Vert., viii. 334. 



Shell of an elongated oval form, slightly opake, shining, horn- 

 color, often tinted with reddish or violet ; lines of growth very 

 faint ; spire elevated and pointed, composed of seven or eight 

 slightly convex whorls, separated by a well-defined suture, which 

 often has a marginal line revolving near it ; the lowest whorl 

 much larger than all the others together ; aperture ovate, broadest 

 below ; outer lip thin and sharp, reflexed and white, joining the 

 preceding whorl by a very acute angle ; on the inner lip the adult 

 shell has three white folds or teeth ; the lower one formed by the 

 turning of the lip within the aperture ; the second tooth-like 

 and nearly transverse, thin and prominent, a little below the mid- 

 dle of the inner margin ; and a third, minute one, a little above ; 

 the lower portion of the left margin expands a little, and conceals 

 a very minute umbilicus ; two or three teeth are also sometimes 

 found within the outer lip. Length /^ inch, breadth /j^ inch, 

 divergence 35°. 



Found in the crevices of decaying wooden wharves, about and 

 below high-water mark, in shaded situations. 



Animal very light drab-color, head and tentacula darker and 

 wrinkled ; tentacula about one tenth of an inch in length, globose 

 at tip, the eyes kidney-shaped, and seated on a slight enlargement 



