SIMPULUM. 15 



/ 



T. CINGULATUS, Lam. PL 8, figs. 55, 56. 



Light yellowish brown, with the revolving ribs darker ; slightly 

 shouldered and tuberculate on the angle ; canal rather long and 

 recurved. Length, 2 to 2'75 inches. 



Philippines; Floating dock, St. Thomas, W. I. (Swift Coll.). 



T. Voigtii, Anton (fig. 56) is a synonym, according to Philippi, 

 who publishes the first and only illustration of that species. 



T. WIEGMANNI, Anton. PI. 9. fig. 57. 



Whorls decidedly shouldered, and nodulous on the angle of 

 the shoulder. Yellowish brown, the revolving ribs darker in 



color. Length, 2*5 to 3'5 inches. 



Mazatlan to Panama. 



There is but little difference between this and the preceding- 

 species : it lias a more decided shoulder and the canal is shorter. 

 Should they prove identical, which is probable, the species must 

 be called T. cingvlatus, Lam. 



T. CLANDESTINE. Lam. PI. 9, fig 58. 



Yer}- light yellowish brown ; the regular cord-like revolving 

 ribs chestnut-brown ; aperture white within. 



Length, 1-5 to 2'5 inches. 



Australia. 



T. LIGNARIUS, Brod. PL 9, fig. 63. 



Solid ; yellowish brown, with dark chestnut revolving bands ; 

 columella with a double series of small tubercles which are white 

 upon an orange ground; outer lip orange stained, with white 

 tuberculations. Length, 1-25 inches. 



W. Coast Central America ; sandy mud, 7 to 12 fathoms 



A very distinct species, readily recognizable by its sculpture 

 and showy coloring. 



.; : / :; ". ;: . Group Ubt*t(infi, Bolteu. 

 T. CUTACEUS, Linn. PL 9, fig. 59. 



The revolving ribs are elegantly sculptured into close, bead- 

 like nodules. Light yellowish brown, white within the aperture. 

 Length, 2 to 3 inches. 



Mediterranean Sea ; W. Coast of France ; 



Channel Islands ; Cape Verd Isles. 



