56 SIGARETUS. 



S. EXiMius, Reeve. PI. 24, figs. 52-54. 



Convex, thin, obliqne, opaque white, whorls densely spirally 



corded. Diam. 15-20 mill. 



Malacca, Australia. 



S. argenteus, Reeve (fig. 54), from Australia, appears to be 



identical. 



S. Martinianus, Phil. PI. 23, figs. 41-43. 



Convexly curved, rather solid, whorls slightly concavely 

 impressed round the suture, spirally wave-striated, growth-lines 

 somewhat rugose; chestnut-brown, varying in intensity and some- 

 times obsoletely banded, under a thin yellowish brown epidermis, 

 becoming whitish on the base, interior chestnut-tinted. 



Diam. 1*5 inches. 



West Indies. 



This is S. zonatus, d'Orb., S. maculatus, S. Petiti, S. Listeria 



and very probably S. unifasciatus (fig. 43), of Recluz. 



S. MACULATUS, Say. PL 24, figs. 51,58. 



Globosely depressed, finel}' spirally striated ; yellowish white, 

 yellowisli chestnut at the suture, and bearing on the body-whorl 

 two spiral series of spots or maculations. Diam. 1-25 inches. 



Florida. 



In the young shell, as described and figured b}^ Saj^ (fig 58) 

 tlie maculations are more distinct and regular than in the adult. 

 The species is still a rare one in collections ; it may eventually 

 prove to be only a variety of the preceding one. 



S. BiFASCiATUS, Rccluz PI. 24, figs. 59, 60. 



Flatly depressed, finely undulately waved-striated; whitish 

 under a yellowish epidermis, with two interrupted bands or series 

 of maculations of chestnut-brown color. Diam., 17'5 mill. 



Guinea, W. Africa. 



S. llenkeanus, Dunker, is a synonym. Distinguished at once 

 from the foregoing species by its dorsal flattening. 



S. siNUATUS, Recluz. PI. 24, figs. 62, 63. 



Auriform, convex, thin, pellucid, white, undulately striate. 

 Diam., 29 milL Hed Sea. 



