61. 



S. CATANUANENSIS, Sowb. PI. 12, fig. 74. 



Shell ventricose, with seven rounded whorls, yellowish brown 

 with very small, close, thin varices, and a conspicuous one on 

 the back, near the a,perture, minutely decussated by spiral striae. 



Length, 12 mill. 



Catanuan, Philippines . 



In Conchologia Iconica, the figures of this species and of S. 

 pulcherrima have been transposed. 



S. IMMACULATA, Sowb. PI. 12. fig, 80. 



Subumbilicated, minutely spirally striate, whitish ; whorls 

 about 9, rounded, contiguous, with rather numerous, very thin, 

 unequal lamellae, disappearing about the middle of the whorls, 

 and crispate at the suture. Length, 1 inch. 



Philippines. 

 S. FRIABILTS, Sowb. PI. 12, fig. 75. 



Scarcely umbilicated, very thin, white; whorls 8, but slightly 

 convex, the suture not deeply impressed, with very thin, close 

 lamellae, aculeate close to the suture. Length, 20 mill. 



Swan River, Australia. 

 S. CRTSPATA, Pease. PI. 12, fig. 79. 



Subimperforate, thin, white, finely spirally striated ; whorls 

 8-9, convex, contiguous, the last whorl slightly ventricose, with 

 numerous, close, small, thin, crenulated lamellae. 



Length, 20 mill. 



Paumotus Is. 

 S. INDISTINCTA, Sowb. PI. 12, fig. 76. 



Subimperforate, rather solid, white, minutely spirally striated; 

 whorls 9, well rounded, with very fine close lamellae, a little 

 crispate at the suture. Length, 23 mill. 



Gulf of California. 

 S. TENUISTRIATA, d'Orb. PL 14, fig. 52. 



Subimperforate, thin, whitish ; whorls 8, convex, subcancellated 

 by very numerous close lamellae and fine spiral striae. 

 Length, 16 mill. 



Bahia Blanca, Buenos Ayres. 



S. TENERA, H. Adams. PI. 12, fig. 77. 



Subimperforate, thin, very finely spirally striated, white ; 

 whorls 9, well rounded, with numerous close, thin lamellae, a little 



