31 G THE PROCEEDINGS OF THE LINNEAN SOCIETY 



Hob. Mud Bay, Cape York, North Australia ; found on sandy 

 mud flats at low water. 



21. — Cerithium rubus. 

 Clava rubus, Martyn, Universal Conch., pi. 28. 

 Cerithium rubus, Deshayes, Anim. Sans Vert., vol. 9, p. 310. 

 ,, „ Sowerby, Thes. Conch., vol. 2, p. 873, pi. 



183, fig. 188, 189. 



Murex serratus, "Wood, Index. Test., pi. 28, fig. 158. 

 Hob. Mud Bay, Cape York, North Australia ; found with 

 Cerithium mitrce forme, Sowerby. 



22. — Cerithium rostratum. 

 Cerithium rostratum, Sowerby, Thes. Conch., vol. 2, p. 861, pi. 

 180, fig. 104. 



„ gracile, Pease, Proc. Zool. Soc, London, 1860, p. 432. 



Hub. Darnley Island, Torres Straits, 30 fathoms, white sand 



bottom. 



23. — Cerithium turritum. 



Cerithium turritum, Sowerby, Thes. Conch., vol. 2, p. 860, pi. 

 180, fig. 101. 



Hob. Darnley Island, Torres Straits; 5, 10, 20, 30 fathoms, 

 sand and sandy mud bottom. The most common species found. 



24. — Cerithium abbreviatum. n. sp. 



Shell turrited, white, slightly ventricose in the centre; whoi-ls 7 ; 

 longitudinally ribbed interstices with transverse lines showing on 

 the edge of the ribs like small nodules; suture somewhat deep; spire 

 lengthed ; apex acute, rose tinted, aperture rounded, contracted at 

 the columella and expanded backwards, brown spot within ; canal 

 short, slightly curved. 



Length 3 ; breadth 1|- lints. 



Hab. Katow, New Guinea ; 8 fathoms, sandy mud bottom. 

 This species is much shorter and narrower than Cerithium rhodos- 

 toma, A. Adams, from Port Jackson, and C. fucatum, Pease, from 

 Sandwich Islands. Two specimens were found at 7 miles off 

 Katow. 



