80 AMERICAN MARINE CONCHOLOGY. 



fiiint revolving lines; suture deeply impressed ; lip thin, acute; 

 color blact, brown, green, or reddish, sometimes reticulated or 

 striped with colored lines. 



Length 12.5, diam. 7.5 mill. 



Animal with a dark olive head, and an olive stripe on the ten- 

 tacles from the eye; sides of the foot lined with the same. 



New England and Middle States (iV^. Europe). 



4. L. LiTOREA, Linmeus. Fig. 147. 



(Turbo.) Syst. Nat., edit. xii. 1232. 

 T. ustulatus, Lam., Anim. s. Vert., edit. Deshayes, ix. 214. 

 L. vulgaris, Sowb., Genera of Shells. Littorina, f. 1. 



Shell ovately turbinated, imperforated, thick, smooth or with 

 elevated spiral striae ; whorls sometimes concavely impressed round 

 the upper part ; olive, ash, or red, sometimes banded and lincated 

 with black; columella broadly callous, slightl}' excavated, white. 



NeiD England (iV. Europe). 



5. L. PALLiATA, Sa}'. Fig. 148. 



(Turbo.) Jouru Pliilad. Acad. Nat. Sci., ii. 240. 1832. 

 ?T. neritoides, Linn., Syst. Nat., edit, xii, 1232. 1767. 

 L. littoralis, Forbes and Hanley, Brit. Moll. 1853. 



Shell semiglobose, very solid, spire flatly depressed ; whorls 

 obliquely'' convex, smootli or ver}'^ obscurely striated ; yellow, some- 

 times broadly brown-banded; aperture circular, very much con- 

 tracted ; columella broadly excavated. 



Well distinguished by its oblique, obtuse growth and depressed 

 spire, varying in color from yellow, more or less banded, to freckled- 

 brown. 



New England and Middle Statci (N. Europe). 



6. L. IRRORATA, Say. Fig. 149. 



(Turbo.). Journ. Philad. Acad., ii. 239. 1822. 



Shell solid, robust, pyramidal, with numerous, elevated, obtuse, 

 equal lines ; suture not indented ; spire acut§ ; pillar-lip thickened ; 

 lip stout, bevelled to a moderatel}"^ thin edge, whicli is everted 

 below ; aperture oval, angulated above ; color pale ash or cinere- 

 ous or deep brown ; pillar-lip umber-brown ; lip on its margin with 

 purple abbreviated lines. 



Length 25, diam. 13 mill. 



Whole Coast. 



Reeve's figure (Icon. x. f. 56) does not represent this species, 

 and it does not occur at Sitka as stated by him. 



