CERITHIUM. 147 



C. TORULOSUM, Linn. PI. 28, figs. 50, 52, 53. 



Whitish, with noduliferous ribs, beaded and tumid at the suture, 

 spirally ribbed, outer lip digitated. Length, 1*5 in. 



Society Is. 



It is C. annular e, GmeL, and C. annulatum, Mart. 



C. RECURVUM, Sowerby. PI. 28, fig. 47. 



Spire whorls with three rows of granulations, seven rows on the 

 body whorl ; white, with chestnut spots between the nodules. 



Length, 2 in. 



Red Sea. 



C. KOCHII, Phil. PL 28, figs. 48, 49. 



Spire longitudinally ribbed, ribs cut into nodules by spiral incised 

 lines forming alternately wider and narrower interspaces ; the ribs 

 are obsolete on the body whorl, which has a single sutural row of 

 nodules ; yellowish white more or less marbled or tinged with light 

 brown, sometimes the incised lines are chestnut colored. 



Length, 1*5 in. 



E. coast of Africa. 



C. GRANIFERUM, Pease. PI. 28, fig. 51. 



Yellowish white, suffused with pale brown, minutely brown- 

 spotted between the granules ; whorls with tuberculated ribs below 

 the suture, then two distant, smaller spiral series of granules, inter- 

 stices striated, body whorl rounded and granulated beneath. 



Length, 1 in. 



Sandwich Is. 



C. RAVIDUM, Phil. PI. 28, fig. 54. 



Fulvous, irregularly varicose, longitudinally plicate and spirally 

 striated, the ribs tuberculated, a stronger spiral series just below the 

 suture; canal narrow, long, only slightly recurved. Length, 1 in. 



Sandwich Is. 



Reeve's Iconica gives two figures of C. graniferum, of which the 

 first (fig. 6) represents this species. 



C. TURRITUM, Sowb. PL 28, figs. 55, 56. 



Distantly ribbed, the ribs cut into tubercles by three spiral rib- 

 lets, between which are spiral striae, suture excavated. 



Philippines ; Japan. 



The last-named locality is for Pfeifferi, Dunker (fig. 56), a 

 synonym. 



