SHELLS. 435 



4 crowded upon each other, the last nearly half the length of the 

 whole shell. Near the centre, on the back of this whorl, it is 

 distinctly marked with a pure white chalky looking band, and in 

 some instances with an interrupted band of brown ; aperture 

 rather narrow ; outer lip thickened, toothed on inner margin ; 

 canal rather short, sub-flexuose. 



Length 3 lines. 

 Breadth 1^ lines. 

 Hab. New Caledonia. 



Approaches somewhat to Pleurotoma apicalis of Montrouzier, 

 but is only about half the size, and is distinguished by the white 

 band on the back of the last whirl. 



PLATE XXXVII. Fios. 6, 6. 

 TEBEBBA (LEIOSTOMA) PABVA, Baird. 



Shell elongately subulate, rather thick, whitish-coloured, 

 marked with a row of somewhat square-sliaped reddish-brown 

 spots beneath the suture; whorls 13, shining, longitudinally- 

 grooved at the sutures ; groove extending half-way down each 

 whorl ; last whorl marked with two bluish bands, one near the 

 suture, and one near the mouth ; penultimate whorl with one band 

 near the suture ; mouth white inside, except where the bluish 

 bands shine through ; columella straight ; outer lip sharp, simple. 



Length of shell from 8 to 11 lines. 

 Greatest breadth 2 lines. 

 Hah. New Caledonia. 



