SCALARIANA. MOLLUSCA. SCALARIA. 251 



which is a httle expanded at the anterior angle. Umbilicus none. 

 Length about | inch, breadth \ inch, divergence 36°. 



Found by Mr. C. F. Shiverick, at New Bedford and vicinity. 



It differs from S. Nov-AhigUce in its moi'e robust and firm struct- 

 ure, its more numerous ribs, raised shoulder, and bands on the lower 

 whorl, its absence of umbilicus and revolving lines, &c. It belongs to 

 the South, and is not uncommon there. Mr. Say speaks of it as sub- 

 ject to considerable variety in the size of the ribs, the breadth of the 

 colored bands, &c. 



Scala'ria multistria'ta. 



Shell white ; spire acute ; lohorls eight ; ribs numerous^ the spa- 

 ces between them marked with fine revolving lines ; umbilicus none. 



State Coll., No. 51. Soc. Cab., No. 928. 



Scaliria multistrikla, Say ; Jlmer. Conch., pi. 27. 



Shell rather small, solid, white, acutely conic ; whorls eight, 

 very convex, in firm contact, but well defined by the suture ; ribs 

 numerous, varying in number from fourteen to twenty, equidistant, 

 and moderately elevated, simple, erect, rounded at edges ; spa- 

 ces between them marked with numerous fine revolving lines. 

 Aperture rounded-ovate, more than one fourth the length of the 

 shell, margined by a rib ; pillar lip thick and rounded ; umbilical 

 opening none. Length ^ inch, breadth ^\ inch, divergence 30°. 



Two small specimens, which I think must be regarded as of 

 this species, were found by Mr. Shiverick, outside of Dartmouth 

 harbour. 



They vary in some respects from the description of Mr. Say. The 

 number of whorls is only seven, and of ribs thirteen. But ours are 

 small specimens, less than one fourth of an inch in length ; and Mr. 

 Say gives only sixteen ribs in his description, whereas, an undoubted 

 specimen before me, has as many as twenty. The specific character 

 seems to consist in the revolving lines between the ribs, and the desti- 

 tution of an umbilicus. In this last respect it differs from S. NoV' 

 A'nglicB^ while it corresponds with that shell in the first character, and 

 in its general outline. Other, and probably larger, specimens will be 



