SCALARIA. 311 



Littorina irrorata. 



Turho irroratm, Say, Binney's ed. 81 ; Joiiru. Acad. Nat. Sc. ii. 239 (1821). 



PhasiuHi'lla sulcata, Lamarck i 



Littorina irrorata, Stimpson, Clicck Lists, 5. 



Shell thick, greenish, or pale cinereous, with numerous revolving, 

 elevated, obtuse, equal lines, which are spotted with 

 abbreviated brownish lines ; suture not indented ; fig- 579. 



spire acute ; lal)ium incrassated, yellowish-brown ; la- 

 bium Avithin white and thick, at the edge thin, and 

 lineated with dark brownish ; throat white ; columella 

 with an indentation ; operculum coriaceous. Length, 

 four fifths of an inch. 



This has the general appearance of Turbo liUoreus, 

 but is sufficiently distinct by the above characters ; l. inorata. 

 the calcareous deposit on the labium is obvious. 



An inhabitant of our estuaries of the Middle and Southern States. 

 I have found them on the eastern shore of Maryland, and on the 

 coast of Carolina, Georgia, and Florida; and my brother obtained 

 a specimen on the coast of New Jersey, of the length of one inch 

 and one tenth nearly. Mr. Cuvier would place this shell in the 

 genus Pallidum. (Sai/.} 



Connecticut (^Stimpson). 



Family SCALARIID.E, Brod. 



Shell without plaits on the pillar ; margins of the aperture cir- 

 cularly united. 



Genus SCALARIA, Lam. 180L 



Shell turreted, spire long, composed of rounded, sometimes sep- 

 arated whorls, crossed by elevated ribs ; aperture oval ; lip contin- 

 uous, reflected. 



Scalaria Nov-Anglise. 



Shell white, whorls convex, and barely in contact ; ribs numerous, slender, un- 

 equal, and with numerous, fine, revolving lines in the intervening spaces ; umbil- 

 icated. 



Scalaria Nov-An^llo^, Couthouy, Bost Jonrn. Nat. Hist. ii. 96. pi. 3, fi^. 5. — Gould, 

 Inv. 1st ed. 248. — Soaverby, Thes. pi. 3.5, fig. 112. — Sti.mx^son, Check Lists, 5. 



