OP NEW SOUTH WALES. 121 



convex, the last descending a little in front, roundly convex, 

 having a narrow line contiguous to the suture, another just above, 

 a broader one above it near the suture and breaking off on the 

 second whorl into irregular spots ; spire obtuse, apex tipped with 

 brown ; base convex, covered with a thin shining yellowish 

 epidermis, encircled near the centre with a narrow brown line 

 running spirally into the interior ; aperture oblique, ovately 

 rounded, interior blue black ; peristome white, thick, reflected, 

 margins approximating, joined by a thin white callus showing a 

 chestnut brown hue beneath, the right slightly flexuous; columellar 

 margin broadly expanded and reflected, covering the umbilicus. 



Diam. mag., 19 lines ; min., 15 lines ; alt., 12 lines. 



Hab. Hall Sound, New Guinea. (Coll. Hobson). 



This fine shell I have named at the request of its owner, 

 Mr. James Hobson, after Capt. Hixson, R.N., Portmaster of 

 Sydney. It is said to have been found some seven miles inland 

 at Hall Sound. I don't place much confidence in the localities 

 of species brought to light by traders to the South Sea Islands 

 and other places, for they are generally wrong. 



2. — Helix Diomedes, n. sp. 



Shell imperforate, trochus shaped, rather thin, obliquely finely 

 striated and granulated throughout, opaque whitish, mottled with 

 light rose pinkish rays and spots ; whorls four, slightly convex, 

 the two upper all pink, the last angled and sharply keeled at the 

 periphery, the keel being contiguous to the suture, constricted 

 behind the aperture near the centre, which is oblique and some- 

 what square ; spire conoid, rather sharp ; aperture somewhat 

 triangularly ovate, interior shining pinkish white ; peristome jet 

 black ; margins approximating, joined by a thickened black 

 callosity, the right sinuous, broadly expanded and reflected in the 

 centre, basal margin reflected and furnished within with a some- 

 what long straight callus, flattened towards the columellar. 



Diam. maj.,-15 lines ; min., 12 lines ; alt., 11| lines. 



Hab. Brumer Island, Louisiade Archipelago (Coll. Brazier, 

 Hobson, and Australian Museum). 



