110 STROMBUS. 



S. CANARIUM, Linn. PI. 2, figs. 18-20 ; PI. 3, fig. 21. 



Densely longitudinally marked with zigzag alternate white 

 and chestnut lines ; aperture white. Length, 2-2*5 inches. 



Red Sea, Indian Ocean, Philippines. 



It is S. VanicorensiSi Quoy. 



Var. ISABELLA, Lam. Figs. 20, 21. 



Yellowish or orange-brown, not lineated ; sometimes obscurely 

 doubly broad-banded with light chocolate. 



The banded state is S. tseniata, Quoy (fig. 21). Occasionally 

 a specimen occurs combining the coloring of type and variety. 



S. GRANULATUS, Gray. PI. 3, fig. 22. 



Spire-whorls each with a single, body-whorl with three rows 

 of nodules ; white, with interrupted zigzag markings and macu- 

 la tions of chestnut, aperture white, the outer lip granulated 

 within the margin, inner lip yellowish brown. Length, 3'5 inches. 



Panama to Mazatlan ; Galapagos Is. 



Section II. EUPROTOMUS, Gill. 

 S. LENTIGINOSUS, Linn. PI. 3, figs. 23, 24. 



White, maculated and coarsely reticulated with chocolate, 

 chestnut or grayish brown, often with several indistinct bands 

 of spots ; aperture yellowish white, often blush-red or orange- 

 brown farther within, outer lip smooth, much thickened on 

 the edge and crossed by broad yellowish brown or chestnut 

 bands. Length., 3-4 inches. 



Philippines, New Caledonia to Viti Islands; Zanzibar. 



Not the most characteristic species of the section, but I 

 commence with it because of its relationship in form with 

 S. granulatus which I have placed at the end of Section I. 



S. PAPILIO (Chemn.), Dillwyn. PL 3, fig. 25. 



Shell noduled throughout in revolving rows, and coarsely 

 spirally striate and granose, strongly tuberculated on the 

 shoulder and spire ; whitish, blotched and lineated with chest- 

 nut; columella carnelian-tinted; aperture purplish or nearly 

 black with revolving, irregular, close narrow threads ; outer lip 

 thick-margined, with chestnut broad cross-bands. 



Length, 2-3 inches. Philippines ; Zanzibar. 



It is S. exustus, Swainson, and S. adustus. Swainson, of Reeve. 



