29 



15. S. lin eat us (pi. vii. f. 32, 33.) Lam. An. sans vert. S. 

 polyfasciatus, Chemn. 



T. conica, lae vi, alba ; lineis nigris interrupts cincta ; spira brevi ; 

 anfractibus noduloso-angulatis, a^ ertura angustata. aurantia ; labio 

 externo prope spiram emarginato ; labio interno tenui. 



A smooth conical shell, white, with interrupted blackish lines or 

 bands across the body whorl. The spire is short; the whorls an- 

 gular, plicated at the angle. The aperture is of a golden tint. 



Red Sea. 



16. S. cylindricus. (pi. vii. f. 50, 57, 59.) Swainson. Zool. 

 Illus. S. Mauritianus Lam. Anim. s. vert. vii. p. 206. 



T. conica, Isevi, spira brevi, anfractibus sub-angulatis, plerumque 

 plicatis, ultimo ad angulum gibboso, apertuia angusta, labio externo 

 postice paululiun emarginato et unilobato. 



A conical species, with short spire and narrow aperture; the 

 outer lip is not much expanded; it is slightly emarginated above 

 the outer angle. The usual colour is pale brown, with brown 

 mottled bands. Fig. 50 represents a white variety, belonging to 

 the Rev. F. J. Stainforth. The inside of the aperture has a 

 beautiful tinge of pink. Isle of France. 



17- S. luhuanus. (pi. vii. f. 54.) Linn. Syst. Nat. p. 120'). 



T. conica, S. cylindrico simillima, sed columella nigro marginata. 



We can scarcely regard this as distinct from the preceding, 

 although the columellar lip is edged with black, and in some spe. 

 cimens the outer lip is more decidedly lobed above. Moluccas. 



18. S. conifoumis. (pi, vii. f. 55, 61.) 



T. conica, laevi, pallide fulva, fasciis brunneis inteiruptis cincta, 

 valide angulata; spira brevissima; anfractibus ad angulum plicatis ; 

 apertura angustata; labio externo vix expanso, sinu parvo. 



Both specimens are rather young, from the cabinets of Messrs. 

 Norris and Stainforth, but we think that from the general form, 

 and the absence of the posterior sinus, the species will prove to be 

 distinct. 



19. S. dubius. (pi. vii. f. 80.) 



We insert in this place a singular shell, from the collection of 

 Mr. Cuming, which has the general form of a cone, yet the outer 

 lip is slightly expanded upwards and cienulated near the margin 

 within. 



20. S. mutabilis. (pi. vii. f. 40, 45, 46, 47, 49, 52.) Swainson. 

 Floridus, Lam. 



T. ovata, angulata, antice truncata, ad extremitates spiraliter 

 striata; spira brevi, nodulosa; apertura angusta; labiis striatis, 

 externo postice angulato, sinu antico valido. 



Oval, angular, striated at the spire and at the anterior part of 

 the body whorl; spire short, tuberculated ; aperture narrow, with 

 both lips striated; outer lip angular above, truncated at the anterior 

 termination, with the anterior sinus deep. The variations in colour 

 are almost innumerable. Moluccas and Philippines. 



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