OF NEW SOUTH WALKS. 249 



manner of breeding of hermaphrodite mollusca. As yet, we know 

 little or nothing of the physiology of reproduction under these 

 peculiar conditions, and I submit that most important physiological 

 and zoological facts are contained therein, bearing on the whole 

 question of evolution. The subject may he said to be at our doors, 

 and may he studied with the greatest ease by anyone who gives it 

 a careful attention. I have written this paper in the hope of 

 drawing other observers into this most inviting and interesting 

 field. 



Shells collected during the Chevert Expedition, with Descriptions 

 of the New Species, by J. Brazier, C.M.Z.S. 



Family Scalaridje. 

 1.— scalaria rkplicata. 

 Scalaria replicata, Sow. Jun., Proc. Zool. Soc, London, 1844, 

 p. 11. 



„ „ Sowerby, Thes. Conch., vol. 1, p. 84, pi. 32, 



f. 23, 24. 



Hob. Darnley Island, Torres Straits, 10 fathoms, sandy mud. 



2. — Scalaria Phillippinarum. 

 Scalaria Phillipjainarum, Sowerby, Jun. Proc. Zool. Soc, London, 

 1844, p. 12. 



Thes. Conch., vol. 1, p. 85, pi. 32, 

 f 21 22 



Hah. Darnlsy Island, Torres Straits, 10 fathoms, sandy mud. 

 This species is also found in Port Jackson. 



3. — Scalaria irregularis. 

 Scalaria irregularis, Sowerby, Proc. Zool. Soc, London, 1844, 

 p. 13. 



,, ,, ,, Thes. Conch., vol. 1, p. 90, pi. 33, 



f. 40, 60. 



Hah. Bet Island, Torres Straits, 11 fathoms, coral and sand. 

 Specimens also found on the beaches inside the reefs after ^ahs. 



