STROMBUS. 121 



or yellow or orange-brown, maculated with darker shades,, and 

 with a maculated white band ; aperture white. 



Length, '75-1-25 inches. 



Sandwich, Paumotus and Friendly Islands. 



Well characterized by its form, swollen posteriorly and not 



tuberculate. 







S. GIBBERULUS, Linn. PI. 8, fig. 85. 



Shell gibbous, smooth, spire occasionally varicose, bodj'-whorl 

 grooved at the base ; columella smooth, interior of aperture 

 rad lately striate ; mottled and hieroglyphic-ally marked with 

 yellowish brown and white, the markings often arranged in a 

 few or numerous interrupted revolving bands ; aperture tinged 

 violaceous, scarlet, dark purplish brown, etc. 



Length, l'5-2'5 inches. 



Zanzibar, Natal, Red Sea, Indian Ocean, Mauritius, 



Philippines, New Guinea, Viti Islands, Paumotus,etc. 



The synonymy includes S. Mauriiianus, Issel, and var. 

 rhodofftomus, Morch. 



S. BULBULUS, Sowb. PL 8, fig. 80. 



Smooth, sulcate at the base; marbled, freckled and sometimes 

 interruptedly banded with chestnut and white, the white often 

 tinged with light violaceous, aperture and columella dark purplish 

 chocolate. Length, 1*5-1 '75 inches. 



Philippines to Viti Islands. 



S. TEREBELLATUS, Sowb. PL 8, fig. 87. 



Smooth, obsoletely grooved at the base, 'outer lip radiately 

 ridged within ; yellowish white, with clouds and zigzag markings 

 of orange-brown or chestnut, interior ridges chestnut. 



Length, 1 '5 1'75 inches. 



Philippines to Viti Islands. 



S. SAMAR (Chemn.), Dillw. PL 8, fig. 88. 



Smooth,.; polished, plicate, obsoletely grooved at the base, 

 margin of lip tridentate anteriorly, interior of aperture radiately 

 ridged ; marbled and speckled with orange-brown or chestnut 

 and white, int?rior tinged with purplish chocolate. 

 Length, 1*75 inches. 



Philippines, Australia,, Society Is., Paumoltis Is. 

 .synonymy, includes S. tridentatus, Lam.,. 



