114 STROMBUS. 



columella-callus are yellowish, or ochre-brown, darker between 

 the radiating ridges, tinged on the callus with dark chocolate. 



Length, 3 inches. 



Japan, Australia, Society Inlands. 



This is S. Novae-Zelandiae, Chemn., S. acufus, Perry, S. aratrum, 

 Morch, S. Chemnitzii, Pfr. 



Yar. AUSTRALIS, Sowb. Fig. 40. 



Barely distinguishable by its usually shorter lobe, the inter- 

 stices of the lip ridges not darker colored, and the margin of 

 the lip as well as part of the columellar callus painted deep 

 chocolate. 



Section IV. GALLINULA, Klein. 



S. VITTATUS, Linn. PI. 4, figs. 41-44. 



Body-whorl usually smooth, sometimes rudely longitudinally 

 plicate in continuation of the ribs of the spire ; there is a smooth 

 sutural band, more or less defined by a groove below it ; whitish 

 clouded or reticulated with light yellowish or chestnut, often 

 with several revolving bands of darker reticulations ; aperture 

 white. Length, 3-4 inches. 



Indian Ocean, China, Philippines. 



S. turritus, Lam. (fig. 43), is a slender form, with the spire 

 more drawn out, and the lip not so much expanded ; S. sulcatus, 

 Chemn. (fig. 44) is probably only a malformed specimen of this 

 species. 



S. LISTERI, Th. Gray. PL 4, fig. 45. 



Differs from the preceding species in the lobe-like posterior 

 expansion of the lip and its large anterior sinus, in the inner 

 face of the lip being smooth instead of radiately ridged, in the 

 absence of the sutural band, and in its much larger size. 



Length, 6 inches. 



Ceylon. 



It may be a monstrosity of S. vittatus, but until we have 

 further evidence on the subject it had better be regarded as a 

 distinct species. It was known to Lister, who figured it (PI. 

 855) nearly two centuries before Sowerby's publication of it as 

 S.mirabilis, in 1870. Gray's description of it in 1852, although 

 in a periodical of wide circulation, appears to have been entirely 

 overlooked. 



