MOLLUSOA — H KDLE V. 



339 



Order MONOTOC ARDIA. 



Class T^NIOGLOSSA. 



Family LOTORIID^. 



L O T R I U M, Monlfort. 



LOTORICJM PUMILIO, sp.nov. 

 (Fig. 68.) 



Station 28. 



Shell ovate conic, small, thin, smooth and glossy. Colour 

 reddish-yellow, with occasional chocolate spots, aperture pale 

 yellow. Whorls five, plus a two-whorled protoconch. Sculpture: 

 varices eight ; fine close longitudinal plications occur on the 

 uppermost whorls, which as the shell in- 

 creases become more widely spaced and less 

 pronounced, finally on the penultimate and 

 last whorl they degenerate into a row of 

 peripheral nodules, which are absent from 

 the ventral side of the body whorl ; spiral 

 ornament consisting of fine close flat-topped 

 riblets, on the last whorl 40, on the penulti- 

 mate 20, varying in size, separated by nar- 

 row interstices ; the growth lines are nearly 

 obliterated from the riblets but persist in \ %r 



the interstices as microscopic scales. Pro- 

 toconch low, turbinate, two-whorled, fur- 

 rowed by two spiral incised lines, one on 

 the shoulder, the other on the periphery. 

 Suture distinct waved by the varices and 

 longitudinal plications. Epidermis thin, 

 closely adherent, without frills or tags. pj„ gg_ 



Outer lip sharp, a little expanded, very 



faintly dentate, not lirate within. Inner lip with a sharply 

 defined rather thick callus ; in the hollow of the columella are a 

 few indistinct ridges, and an obscure tubercle appears in the 

 posterior angle. Canal short, open, recurved. Length, 1 6 ; 

 breadth, 8-5 mm. 



This species appears to be the smallest of the genus. The 

 nearest relation is L. bassi, Angas, with which it agrees in the 

 small number of whorls, colour, sculpture and general appearance, 



