26 THE PROCEEDINGS OF THE LINNEAN SOCIETY 



irnperforation, and running spirally inwards ; spire rather conoid, 

 apex striated, white, whorls 5J, slightly convex, the last large 

 and moderately ventricose, base convexly rounded, suture 

 encircled with a white line, broader above the last whorl, aperture 

 ovate, diagonal, violet tinged within, peristome white, expanded 

 and reflected, very much thickened, margins approximating, the 

 right descending, columellar expanded, dark purple beneath a 

 white callus, and joined to the upper part of the peristome. 



Diam. maj. 17, min. 13, alt. 14|. 



Hah. Andromache River, between Bowen and Cape Palmer- 

 ston, North-East Coast of Australia (Mrs. Charles Coxen.) 



The first specimen I saw of this species, I was inclined to 

 regard it as a variety of Helix gratiosa, Cox. I have seen three 

 specimens since then, — one in Dr. Cox's collection, one in Mr. 

 Hargraves, and the specimen in my own, which I exhibit to- 

 night to the Society, and for which I am indebted to Mrs. Coxen, 

 of Brisbane. It differs from H. gratiosa, in being a heavier and 

 thicker shell, in having a thick, white, and reflected peristome, 

 and in being of a violet colour within the aperture. I have named 

 it after my friend, Mr. R. Etheridge, jun., of Edinburgh, P.G.S. 



3. — Auricula (Alexia) meridionalis. 



Shell oblong ovate, thin, transparent, imperforate, longitu- 

 dinally striated, spire acuminate, apex papillose, whorls 7, slightly 

 convex, suture impressed, base rounded, aperture vertical, semi- 

 ovate, body whorl in centre, with one minute nearly obsolete 

 white denticulation of callus ; below with a thin vertical parietal 

 white plate, sharp at its edge, and entering spirally inwards, 

 columella twisted, white, thickened with callus, slightly expanded!; 

 peristome white, thin above, expanded and reflected below, 

 interior of aperture shining brown. 



Length 4, breadth 2 lines. 



Hab. Port Adelaide Creek, South Australia ; found in swamps. 

 Collected by Mr. Yates. 



