ERRATA AND ADDITIONS. 273 



Tornatellina norfolkensis nepeanensis Preston. 



Shell allied to both T. norfolkensis and T. moohuensis, but 

 differing from the former in its much broader form and from 

 the latter in its more tapering spire, more rounded whorls 

 and well-developed parietal lamella. Alt. 3.5, diam. maj. 1.5 

 mm. (Preston). 



Nepean Island (R. Bell). 



With the exception of Vallonia sp., which is exceedingly 

 plentiful, this and the following are the only living species of 

 land Mollusca found upon the Island (Preston, t. c., p. 537). 



TORNATELLINA DUPLICILAMELLATA Preston. 



Shell fusiformly ovate, polished, shining, yellowish-brown; 

 whorls 5; regularly but rather rapidly increasing, somewhat 

 inflated, marked only with growth striaB; suture impressed; 

 columella margin white, twisted, bearing a short projecting 

 lamella above, descending below in an almost vertical curve ; 

 aperture rather obliquely, inversely auriform, furnished with 

 a well-developed, entering, parietal lamella. Alt. 2.25, diam. 

 maj. 1.5 mm. (nearly) (Preston, t. c., p. 537). 



Nepean Island (R. Bell). 



P. 150. The name Lamellina Pse. proves to be preoccupied 

 by Lamellina Bory de Saint- Vincent, Encycl. Meth., Zoo- 

 phytes II, p. 480, 1824. It must therefore take the name 

 Lamellidea, which was considered a synonym in the text. 



