28 



spire immerseJ.whorl proJucod abovo,lip moderately thickened, 

 aperture curved, columella tri-plicate, and above obsoletely 

 unidentate. Dredged at a depth of G fathoms. A single speci- 

 men, the only one seen during many years' collecting iu 

 Tasmania by Mr. Legrand. 



4. Margixella Allpobti, n. s. M. testa parva, ovato-tnrhinata, 

 nitlda, anfractibus superne sulcatis, spiraconica, exserta ; labro incras- 

 sato, superne emarghiato ; columella Jt.-plicata, apertura ad basin 

 latiuscula; albofusca pallkle tri-fasciata. Long. 9. Lat. 5 mill. 

 Anfr. 4. 



M. shell small, ovately turbinate, shining, whorls sulcate 

 above, spire conical, exsert, outer lip thickened, emarginate 

 above, columella distinctly 4-plicate, aperture slightly wider 

 at the base, color whitish brown, with three pale bands. 

 Found in the dredge at the same time as the above, with 

 three other specimens. 



5. Marginella Tasmanica, n. s. M. testa fusiformi-oblonga, 

 diaphano-alba, nitente, spira acuta, elevata, anfractibus(5) ad awjulmn 

 callosis, labro rotundato, incrassato, eburneo ; columella tri-plicata, 

 exteriusque callosa. Long. 10. Lat. 4 millim. 



M. shell fusiformly-oblong, transluceutly white and shining, 

 spire acute, elevated, whorls five, suture obliterated by a kind 

 of callosity, lip rotundately thickened, waxy-white, columella 

 tri-plicate, exteriorly callous. 



This shell is much smaller and much narrower than M. 

 muscaria Lam. with a somewhat sharp spire. It has little or 

 no colour, but the callosity at the sutui-e gives it a white banded 

 appearance round the spire. It has rather a prominent 

 callosity above the columella at the mouth, and resembles M. 

 muscaria in the way the outer lip is thickened. Not uncommon 

 in Storm Bay. 



4. Trifoeis Tasmanica. T. testa, parva, sinistrorsa,elongata, 

 suhuJata, anr/usta, acutissima ; anfractibus numerosis, planatis, 

 triplici serie granuloricm cinctis, ad sutiiram rufo maculatis ; 

 columella contorfa, arcuata. Long. 9 mill. Anfr. 13. 



T. Shell small sinistral, elongately subulate, narrow, very 

 sharp, whorls numerous, flat, circled with a triple series of 

 granules at the suture, spotted red between the granules ; 

 columella twisted and arched. 



Two specimens dredged up at Long Bay. 



Odontostoma. This genus was proposed by Fleming in 

 the year 1819 (Edinburgh Encyclop., Art. Conchology) for 

 turriculate subconical shining shells with flattened whorls either 

 smooth or long, or transversely sulcate, aperture suboval, 

 peristome continuous, first two whorls sinistral. Fleming 

 named the shell Odostomia, but Haidinger (Abhandlungen 

 der Kaiserlich-Koniglichen Geologischen Eeichsanstalt, 3 

 band 1856), has pointed out that since the word is derived 



