Art. XVIII. — 0>i a MoUuscati Genus new to, and another 

 forgotten from, Australia. 



(Plate XI.) 



B}^ C. Hedley, of the Australian Miiseum, Sydney. 



(Communicated by G. B. Pritchard). 

 [Eead 13tli September, 1894]. 



The genus Lncapinella wa.s described by Pilsbry on p. 195, of 

 vol. xii., of the Fir.st Series of the "Manual of Conchology." He 

 placed in it the following species, — calloinarginata, Carpenter, 

 the type, from California ; cequalis, Sowerby, from the west coast 

 of South America ; limainla, Reeve, from the West Indies, and 

 doubtfully, aaikata, Reeve, of unknown habitat. 



Some Australian species, though not exactly coinciding with 

 the definition drawn up from spirit specimens of L. callo/narginaia, 

 still appear to me to resemble it sufficiently to justify their 

 inclusion in this genus. My attention was first drawn to this 

 subject by an examination of specimens, the property of the 

 Biological Laboratory of the Mell^ourne University, dredged in 

 Port Phillip by Mr. Bracebridge Wilson, and kindly communicated 

 to me by Mr. G. B. Pritchard. While studying these I captured 

 alive, at low water, under stones, in Long Bay, near Sydney, a 

 half-grown mollusc, which, known to local collectors as Fissurella 

 nigrita, Sowerby, and transferred by Pilsbry to his genus Mega- 

 tebennus, proved at a glance to be generically the same as the 

 forms received from Victoria. 



Introductory to the study of the dead Victorian specimens I 

 offer the following notes on the Long Bay animal, which I kept 

 alive in a bottle for some days. 



LucAPiNELLA NiGUiTA, Sowerby. 

 (Figs. 1, 2). 

 Habits active. Foot and mantle rose, papilhie on foot and mantle 

 white, coronul processes wdiite, sole yellow, snout Ijrown, tentacles. 



