SO AL ART A. 6 5 



S. ACULEATA, Sowb. PI. 13, figs. 90, 91. 



White, narrow, with eight contiguous whorls, and rather dis- 

 tant erect lamellae, slightly produced and aculeated above, near 

 the suture. Length, 15-18 mill. 



Philippines, Hong Kong, Malacca. 



S. EXIMTA, Ad. and Reeve. PI. 13, fig. 92. 



Pale fulvous, spirally striated ; whorls 10, narrow-shouldered 

 above, with regular white lamellae ; aculeate at the shoulder angle. 



Length, 8 mill. 



China Sea. 

 S. PORRECTA, Hinds. PL 13, fig. 93. 



Imperforate, yellowish brown, aperture yellowish; whorls .8, 

 turreted, with numerous, rather thick lamellae. Length, 10 mill. 



Straits of Malacca. 

 S. MURT-CATA, Kisso. PI. 13, fig. 95. 



Whorls 8, distinct!} 7 shouldered, the somewhat distant, rather 

 broad lamellae expanded and aculeate on the shoulder. 



Length, 18 mill. 



Mediterranean Sea. 



S. MlTR^EFORMTS, Sowb. PI. 13, fig. 1. 



Similar to the preceding species, but with the lamellae more 

 numerous, narrower, and forming smaller, sharper points at the 

 angle. Length, 18 mill. 



Guacomayo, W. Coast of Cent. America. 



S. FOLIACEICOSTA, d'Orb. PL 13, fig. 96. 



Imperforate, somewhat solid, whitish, a little shining; whorls 

 11, almost distinct, with six or seven lamellae, broadened above 

 and aculeate. Length, 15 mill. 



West Indies. 

 S. OCCIDENTALIS, Nyst. PL 13, fig. 97. 



Thin, smooth, white; whorls 8-9, almost separate, with thir- 

 teen or fourteen oblique continuous lamellae, excavated on the 

 narrow shoulder and aculeate. Length, 13 mill. 



West Indies. 



The name is substituted for S. tennis, Sowb. (non Gray). 



Yar. AURITA, Morch. 



Lamellae eleven, thicker. Length, 11 mill. 

 A young shell. 



