SIMPULUM. 11 



T. suBDiSTORTUs, Lain. PI. 3, flg. 18. 



Whitish, maculated and spotted with reddish brown ; white 



within the aperture. Lengtli 2 to 2.5 inches. 



Australia . 

 T. Bassi, Angas. PI. 3, lig. 20. 



The revolving riblets and tuberculations appear to be propor- 

 tionally smaller than in the preceding species, and the denticu- 

 lations of the lip-margin are described and tigured as " close." 

 The color does not differ from that of T. subdist07-tvs^ and I 

 think it will prove to be synonymous with that species. 



Length 1,08 inch. 



JSrtss' Straits, Australia. 



T. fratercidus Dunker appears, from the description (not 

 figured) to be a synom-m. 



T. FUSiFORMis, Kiener. PI. 4, fig, 22. 



The whorls have two or three large knobs between the varices 

 and the entire surface is covered with very fine, close, revolving 

 strife, which are composed of minute, oblong granules. Yellow- 

 ish brown, articulated with darker brown ; aperture white within. 



Length 1.5 to 2 inches. 



Australia. 



Subgenus Simpulum, Klein. 



T. OLEARiUM, Linn. PL 3, fig. 19 ; PI. 4, flg. 24 ; PI. 5, figs. 27- 

 29 ; PI. 6, fig. 37. 



Light brown, the varices and lip usuall}^ tesselated with 

 chocolate, the columella frequently chocolate between the 

 whitish plications ; within the aperture flesh color. Variable 

 in its proportions, the spire being sometimes short, in others 

 longer. Frequently, the revolving ribs are partially separated 

 into approximate pairs by an incised line ; sometimes they are 

 partially broken up into revolving series of granules. When the 

 shell is fresh it is covered by a thin epidermis which, at frequent 

 intervals, develops longitudinal, reflexed ridges terminating, 

 upon their entire length, in long, hair-like digitations. Opercu- 

 lum with terminal initial point. Length, 2 to 6 inches. 



Mediterranean Sea ; Atlantic Const of Europe and Africa; 



Canary and Cape Verd Isles ; St. Helena ; West Indies to Brazil ; 



Polynesia ; Australia ; New Zealand ; Japan. 



