SIGARETUS. 55 



Genus SIGARETUS, Lam., 1799. 

 Typical Species. 



S. CONCAVUS, Lamarck. PI. 23, figs. 36, 37 ; PL 22, fig. 34. 



Fawn-colored, with thin white columellar callus reflected over 

 the umbilicus ; interior chestnut-brown. Diam. 1-5-2 inches. 



Peru, Chili. San Pedro, California. 



I have before me a specimen collected living at the latter 

 locality by Mrs. A. E. Bush. The synonyms are S. maximus, 

 Phil. ; S. cymba, Menke ; S. Grayi, Desh ; S. neritoides, Recluz, 

 non Linn. ; ? S. latifasciatus, Reeve, not Ads. and Reeve ; S. 

 haliotoideus, Reeve, not Linn (figf. 34). According to Dunker, 

 this species occurs also on the West Coast of Africa. 



S. NERITOIDEUS, Linn. PL 22, figs. 35, 38-40. 



Less globose than the preceding species, and showing less of 

 the body-whorl below. Diam. 1-25-1-75 inches. 



East Indies. 



S. latifasciatus, Ad. and Reeve (fig. 38) ; S. Javanicus, Gray 

 (fig. 39) ; S. insculptus, Ad. and Reeve (fig. 40), and S. Leachii, 

 Phil., are synonyms. 



S. JAPONICUS, Lischke. PL 23, figs. 44-46. 



Convex, spire somewhat prominent, solid, with slight spiral 

 striae, scarcely undulated, the interstices alternating broader 

 and narrower, whitish. Diam. 21 mill. 



Japan. 



Differs a little in form from the preceding species, of which it 

 may be only a variety, or even a synonym. 



S. L^EVIGATUS, Lam. PL 24, figs. 47-51. 



Convex, thin, translucent white, sometimes obsoletely fasciate 

 with chestnut, very finely undulately striate, almost smooth. 



Diam. 1-5 inches. 



Indian Ocean, Java, Australia. 



The synonyms are S. Australis, Hanley (fig. 50), S. zonalis, 

 Quoy (fig. 57). 

 S. CUVIERIANUS, Recluz. PL 24, figs. 55, 56. 



Depressed ovate, spire small, rather prominent, spirally corded 

 throughout ; white, spire flesh-colored. Diam. 28 mill. 



Philippines. 



