J)ESCRIPTIONS OF ELEVEN NEW SPECIES OE TERRESTRIAL 



AND MARINE SHELLS FROM NORTH-EAST AUSTRALIA. 



By John Bkazieb, C.M.Z.S., &c., &c. 



l^Iiead before the Royal Society, 23 Septeniber, 1874.] 



These new species were coHected by me when I went with the 

 AuatraHan Edipse Expedition of December, 1871 ; and my con- 

 tinned absence from Sydney, in exotic Countries, collecting, has 

 prevented me from describing them any sooner. The specific 

 names attached are those of the leading Astronomers to the 

 Expedition. 



*1. Helix (Cokulus) Elleeti. 



Shell minutely umbilicated, conical, very thin, pale brown, 

 finely regularly and spirally striated ; spire conical, acute, suture 

 impressed with a fine groove, whorls 5|, slightly convex, the last 

 whorl sharply keeled at the periphery ; base convex, glossy 

 round the umbiliciis, ahout one half marked with spiral lines, 

 peristome simple, slightly angular, aperture oblique, margins 

 distant, columellar margin curved slightly over the umbilicus. 



Diam, maj. 1|, min. 1, alt. 1| lin. 



Hab. Fitzroy Island, north-east coast of Australia ; found 

 under leaves in damp ground. (Coll. Brazier.) 



I have named this species after Mr. Ellery, G-overnment 

 Astronomer of Melbourne, Yictoria. 



*2. Helix (Contilus) Eusselli. 



Shell minutely umbilicated, turbinately globose, thin, shining, 

 faintly and obliquely closely striated ; horny brown, spire elevated, 

 apex obtuse, suture channelled, whorls 5, roundly convex, last 

 descending in front, base convex, transversely striated, peristome 

 simple, thin, roundly lunate, aperture oblique, columellar margin 

 dilated partly over the umbilicus with white callus. 



Diam. maj. If., min. 1^, alt. IJ lin. 



Hab. Eitzroy Island, north-east coast of Australia, under 

 leaves on damp ground ; found also at No. 8 Island, Ciaremont 

 G-roup, ofi" Cape Sidmouth, amongst the drift coral above high- 

 water mark. (Coll. Brazier.) 



I have named this species after Mr. Eussell, the Government 

 Astronomer of Sydney, New South Wales. 



