240 SURCULA. 



canaliculate, the outer lip sigmoid ; light reddish brown, under an 

 olivaceous epidermis, with a central broad white band, having ill- 

 defined edges ; columella and extremities of the shell also white. 

 L. 38, diam. 11 mill. 



Catalina IsL, Gal.; Straits of Fuca. 

 S. VINOSA, Ball. 



Sinistral, shorter and much less slender than the preceding 

 species, with a shorter canal and proportionally much larger 

 aperture, finely spirally striate ; uniform deep wine-brown or 

 claret-color. 



Aleutian Islands. 

 S. SINISTRALIS, Petit. PL 13, fig. 64. 



Sinistral; ash-brown ; lightly decussately striated ; sinus broad ; 

 canal short. Length, 20 mill. 



W. Coast of Africa (Petit). 



S. PLUTEATA, Reeve. PL 6, fig. 78 ; PL 30, fig. 82. 



Shell narrowly fusiform, with elevated, acuminated spire and 

 long, narrow, twisted canal ; whorls with a shelf below the 

 sutures, and a central revolving carina of small nodules ; horn- 

 color, the nodules white ; sinus rather shallow and wide. 



L. 30, diam. 7 mill. 



Whydah, W. Africa. 



Described by Reeve without locality, but I have the same 

 species before me, received from the Liverpool Museum, with 

 the above habitat, with the MS. name P. mandarina, Smith. 



S. ANNULATA, Reeve. PL 6, fig. 83. 



Shell solid, with elongated spire and well-formed but rather 

 short canal ; whorls cingulated throughout. L. 48, diam. 15 mill. 



Habitat ? 

 S. CATENA, Reeve. PL 6, fig. 84. 



Shell narrow, elongately fusiform, spire turreted, yellowish 

 gray ; whorls very convex in the middle as if suddenly swollen, 

 and bearing a row of oblique, white tubercles; lip thin, sinus 

 broad ; canal long and straight. L. 58, diam. 15 mill. 



Habitat unknown. 

 With short canal. 



S. ASTRICTA, Reeve. PL 6, figs, 85, 86 a ; PL 32, fig. 36. 



Spire often truncate, the tip acuminate when present, whorls 



