SIGARETUS. 55 



Genus SIGARETUS, Lam., 1799. 

 Typical Species. 



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



Fawn-colored, -svith thin white columellar callus reflected over 

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



Peru, Chili. San Pedi'o, California. 



I have before me a specimen collected living at the latter 

 localit}' by Mrs. A. E. Bush. The s^'uonj^ms are S. maximus, 

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

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

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

 this species occurs also on the West Coast of Africa. 



S. NERiTOiDEUS, Linn. PI. 22, figs. 35, 38-40. 



Less globose than the preceding species, and showing less of 

 the body-whorl below. Diam. l-25-r75 inches. 



Uast 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. PI. 23, figs. 44-46. 



Convex, spire somewhat prominent, solid, with slight spiral 

 striae, scarcel}" undulated, the interstices alternating broader 

 and narrower, whitish. Diam. 21 mill. 



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

 may be onlj- a variet}', or even a synonym. 



S. L^viGATUS, Lam. PI. 24, figs. 47-51. 



Convex, thin, translucent white, sometimes obsoletely fasciate 

 with chestnut, very finel}- xmdulately striate, almost smooth. 



Diam. 1-5 inches. 



Indian Ocean, Java, Australia. 



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

 Quoy (fig. 57). 



S. CuviERiANUS, Recluz. PI. 24, figs. 55, 56. 



Depressed ovate, spire small, rather prominent, spirally corded 

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



PMlip2nnes. 



