GASTEROPODA. ">.", 



FAMILY SIPHONARIID.E. 

 Shell conical, patelliform. 



SIPHONARIA. 



Apex sub-central, posterior ; muscular impression horse-shoe- 

 shaped, divided on the right side by a deep siphonal groove, which 

 produces a slight projection on the margin. 



South Africa. India. Philippines. Australia. West Coast of 

 South America. Pacific Islands. 



255. S. diemenensis, Quoy, I.e., \i.,p. 327. Oval, convex, apex 

 sub-central, slightly posterior, with radiating sub-nodular ridges ; 

 siphonal groove shallow. Brown ; ribs white, covered by a yellowish 

 brown epidermis ; interior greyish brown, darker round the margin, 

 where it is spotted with white. Height, '65 ; length, TS ; breadth, 

 1-15. 



Both Islands. Tasmania. 



256. S. zealandica, Quoy, I.e., ii., p. 344. Ovato-orbicular, 

 depressed ; irregularly strongly radiately ribbed ; apex sub-central. 

 Whitish brown ; interior brown, marked with white round the margin. 

 Height, '15 ; length, 75 ; breadth, '55. 



257. S. SCUtellum, Desliayes, Mag. ZooL, 1841, p. 35. Oval, 

 convex, irregularly radiately plicate, undulated ; apex sub-central, 

 posterior, generally much eroded. Pale brown ; interior dark 

 brownish purple, spotted with white round the margin. Height, '45 ; 

 length, - 8 ; breadth, '5. 



Common. Chatham Islands. 



258. S. funiculata. Reeve, Condi. Icon., pi. 2,f. 6, a.l. Oval, 

 conical, finely radiately ribbed, apex sub-central, margin denticulated 

 interiorly. Pale brown ; interior purplish brown, with a narrow white 

 band round the mouth. Height, - 4 ; length, '9 ; breadth, '6. 



Found also in Tasmania and Australia. 



259. S. australis, Quoy, I.e., \\., p. 329. Elongato-ovate, rather 

 convex, with about thirty radiating ribs, apex posterior. Whitish 

 brown ; interior pale, marked with brown round the margin. Height, 

 25 ; length, '6 ; breadth, '45. 



260. S. denticulata, Q,uoy, I.e., ii., p 340. Oval, convex, apex 

 sub-central, with many radiating smoothish ridges. Pale brown ; 

 interior pale, with dark brown radiating bands round the margin. 

 Height, -3 ; length, 75 ; breadth, "57. 



Found also in Australia and Tasmania. 



In New Zealand specimens the radiating brown bands round the 

 interior margin are generally much smaller than in Tasmanian speci- 

 mens, and often they are almost absent. 



* 261. S. CanCGP, Reeve. Shell somewhat oblong-ovate, convexly 

 depressed, very irregular, radiately ribbed ; ribs strong, rude, sub- 

 corrugate, the three next the siphon distant. Dull purple brown. - 

 (Reeve.) 



