64 SCALARIA. 



Yar. BLANDII, Morch. 



Perforate, the suture less open, lamellae ten, with smaller and 

 more numerous lobes. 



S. CENTIQUADRA, Morch. PI. 13, figs. 99, 100. 



Thin, white, decussated by fine growth-lines and spiral striae, 

 the latter usually alternating larger and smaller ; whorls about 

 8, with ten or eleven subcontinuous lamellae. Length, 15 mill. 



West Indies. 



It is S. denticulata, Sowb., not Mtg. (fig. 100). 



S. VITTATA, Jeffreys. PI. 13, fig. 3. 



Thin, semitransparent, not glossy, pale yellowish brown, with 

 three chestnut bands on the body-whorl, two on those of the 

 spire ; whorls 12-14, moderately convex, with deep suture, with 

 about 15 sharp, rather low lamellae, aculeate above. 



Length, 12'5 mill. Mediterranean Sea, W. Co. Africa. 



S. ALGERIANA, Weinkauff. PI. 13, fig. 2. 



White, turreted ; whorls about 10, with slight spiral striae, and 

 fourteen lamellae, narrowly shouldered and aculeate above. 



Length, 6 mill. Cape Breton; Mediterranean Sea. 



This is S. coronata and S. Schultzii, Weinkauff, and S. multi- 

 striata, Phil., not Say. 



S. TURBINATA, Conrad. PI. 13, fig. 8. 



Imperforate, white, body-whorl dilated ; whorls about 4, with 

 strong lamellae, terminating in a prominent angle above. 



Length, 8 mill. Near Beaufort, N. Carolina. 



S. POURTALESII, Yerrill and Smith. PI. 13, fig. 6. 



Pure white, rather stout, with seven well rounded, scarcely 

 united whorls, crossed by about sixteen high, thin, lamellae, 

 aculeate and angulate below the suture, interstices microscopi- 

 cally spirally striate. Length, 17*5 mill. 



Off Martha's Vineyard, Mass. 



S. ECHINATICOSTA, d'Orb. PI. 13, fig. 98. 



Whorls 6, rapidly enlarging, almost distinct, with about a 

 dozen lamellae, produced into three or four lobes on each whorl. 



Length, 3'5 mill. West Indies. 



