116 STROMBUS. 



nodulous whorls, by the outer lip being more produced behind, 

 with a narrow, deep sinus anteriorly. S. orosminus, Duclos 

 (fig. 50), is a variet3^ with uncolored aperture. 



S. LABIOSUS, Gray. PI. 5, fig. 51. 



Spire closely longitudinally ribbed, whorls subangulated and 

 nodose at the angle, everywhere closely spiral^ grooved, lip 

 strongly winged, and excavated above, ascending the spire but 

 little, radiately ridged within, inner lip smooth ; yellowish 

 brown, interior white, interstices of ridges within the lip often 

 deep chestnut. Length, 2 inches. 



Australia, Philippines. 

 S. DEFORMIS, Gray. PL 5, fig. 52. 



Sculpture same as in preceding species, the shell thinner, the 

 lip not so lobular behind, and decidedly ascending the spire; 

 coloring as usual in this group, marbled and tessellated with 

 orange-brown and white, with faint, marbled bands. 



Length, 2-2 '5 inches. 



Eed Sea, Philippines, Australia. 



Notwithstanding the differences above pointed out, I have 

 some doubts of the distinctness of this and the preceding species. 



S. MARQINATUS, Linn. PL 5, figs. 53, 54. 



Distinguished at once by its short, conical spire and sharply 

 angulated whorls, the angle closely minutely nodulous, the 

 whorls everywhere spirally grooved, interior of outer lip 

 ridged ; marbled with orange-chestnut and white, with some 

 narrow white bands covered by chestnut markings, aperture 

 white. Length, 2 inches. 



China, Philippines, Formosa. 



S. robustus, Sowb. (fig. 54), is a synonym. 



S. EPIDROMIS, Linn. PL 5. fig. 55. 

 



Body-whorl smooth, spirally grooved below ; yellowish white, 



minutely marbled and freckled with light orange-brown ; aper- 

 ture smooth within, white. Length, 2*5-3 inches. 



China, Philippines, New Caledonia. 

 S. SUCCINCTUS, Linn. PL 6, figs. 56, 57. 



Upper part of spire minutely longitudinally plicate, spirally 

 closely grooved, body-whorl smooth, spirally grooved towards 



