166 LIST OF MOLLUSC A COLLECTED AT GREEN POINT, WATSONS BAY, 



in which I found it for a long time, and that some unusual con- 

 ditions had conduced to the richness and variety of its contents. 

 What these were I have been unable to determine. The pool 

 is only to be approached twice a year for a day or two at the 

 lowest tides. 



Class GASTEROPODA. 

 Order PECTINIBRANCHIATA. 



Family M u R i c i D ^. 



1. MuREX AUSTRALis, Quoy et Gaimard ; M. palmifencs, Sowerby . 



One specimen (juv.). 

 The history of this species is given in full by Mr. Brazier in 

 his " Synonymy of, and Remark's on, Old-described Australian 

 Mollusca, with Notes on their Distribution," P.L.S.N.S.W. (2), 

 Vol. viii. pt. 1, p. 113 (1893). 



2. Trophon sp. Two specimens ; rather broken and sea worn. 



3. Purpura neglecta, Angas. Twelve specimens. 



4. Purpura succincta, Martyn. One specimen (larval state). 

 The larval state of this species has been described as belonging 



to the genus Sinusigera, d'Orb., = Cheletropis, Forbes. 



5. Purpura sp. One specimen (larval state). 



6. RiciNULA (Sistrum) chaidea, Duclos. One specimen. 

 Common in Lord Howe Island, Norfolk Island, and New 



Caledonia, but only recorded from Port Jackson once before (by 

 Angas in 1867). 



Family T r i t o N i D .E. 



7. Triton speciosa, Angas. Two young specimens. 



Family Fusion. 



8. Peristernia Rudolphi, sp.nov., Brazier, (PI. xiv. fig. 1). 

 Shell small, fusiform, turreted, yellowish-brown, dotted with 



dark reddish-brown spots, larger below the sutures ; apex smooth. 



