THE VICTORIAN NATURALIST. 13 



Observations. — Other specimens obtained by Mr. F. E. Grant 

 under stones at Stony Point, Western Port, which have a thin grey 

 epidermis, and are rather smaller than the type. 



Fig. I. Fig. 2. 



Leuconopsis tatei, n. sp. (fig. 2). 



Shell ovate, imperforate, opaque white. Whorls four, faintly 

 spirally grooved. The apex, viewed from the front, is on the 

 right of the centre. There is a central well-developed tooth on 

 the inner lip, followed anteriorly by another, much smaller, only 

 visible sideways. Aperture about half the length of the shell. 



Dimensions. — Length, 1.84 mm. ; breadth, 1.05 mm. 



Locality. — Fowler's Bay, South Australia. (Prof. Tate.) 



Observations. — The two foregoing species are very similar, but 

 the South Australian shell is more inflated in the whorls, and the 

 position of the peculiar apex is on the right, and in the Victorian 

 species it is on the left. The New South Wales species, Leu- 

 conopsis mermis, Hedley, is a larger shell, and the central tooth 

 is situated further back. I have to thank Mr. C. Hedley for kindly 

 informing me that the name Leuconia minima, Tate, No. 451 in 

 Adcock's " Hand-List of Aquatic MoUusca of South Australia," 

 appertained to an undescribed form, which might be the Victorian 

 species. Dr. J. C. Verco kindly sent me four specimens of it, 

 and from a microscopic examination of them I am led to 

 conclude that they are distinct, and have named it as above. 

 The drawings are by Mr. R. A. Bastow, to whom I am much 

 obliged for his skill in delineation and the use of his microscope. 



CATALOGUE OF VICTORIAN ESTUARINE UNIVALVE 

 MOLLUSCA. 



By J. H. Gatliff. 



{Bead before the Field Naturalists^ Club of Victoria, lOth April, 1905.) 



In the " Catalogue of Marine Shells of Victoria," by Messrs. 

 Pritchard and Gatliff, in recent volumes of the " Proceedings of 

 the Royal Society of Victoria," species of mollusca that are not 



