[Proc. Eoy. Soc. Victoria, 19 (N.S.), Ft. I., 1906]. 



Airr. I. — On some Victorian Marine Mollusca, New 

 Species, and Others little-knoivn. 



By J. H. GATLIFF. 



(With Plates I. and II.). 

 [Eead 10th May, 1906.] 



The present paper contains descriptions and figures of the 

 following species : — 



Daphnella excavata, sp. nov. 

 Scala nepeanensis, sp. nov. 

 Scala translncida, sp. nov. 

 Cyclostrema bastowi, sjj. nov. 



Also figures of : — 



Tiiri-icula tasmanica, T. Woods. 



Cyclopecten nepeanensis, Pritchard and Gratliff. 



Daphnella excavata, sp. nov. (PI. T., Figs. 1 and 2). 



Shell minute, thin, semi-transparent, of four-and-a-half whorls, 

 the protoconch of one-and-a-half whorls appears to be smooth, but 

 when examined witli a one-and-a-half inch objective, under the 

 microscope, it is densely spirally striate. The adult whorls are 

 longitudinally costate, costae numbering eleven on the body 

 whorl and extending to the shoulder where they slightly project 

 over the suture, which is excavated. Spirally ridged, ridges 

 becoming somewhat nodulous when crossing the costae. Sinus 

 large and deep, lip sharp. Colour pale brownish-yellow. 



Dimensions of type. — Length, 1.7 mm.; breadth, 1 mm. 



Locality. — Portsea, Port Phillip, in shell sand. 



Type in my collection. 



Scala nepeanesis, sp. nov. (PI. I., Fig. 5). 



Siiell minute, semi-translucent, apex of one-and-a-half smooth 

 whoils, followed by three-and-a-half convex whorls, rapidly 



