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Show 1867.] DR. J. C. COX ON NEW AUSTRALIAN LAND-SHELLS. 723 A small dark variety from the last-mentioned locality has the decussating striae nearly obsolete. This species may be associated with H. bombycina, Pfr., although not very closely allied to it. 3. HELIX DIEMENENSIS, mihi. H. testa umbilicata, depresso-orbiculari, discoidea, tenui, translucida, costulis perplurimis prominulis subarcuatis munita, non nitente, sordide lutescente, fasciolis plurimis pallide rufis radiatim ornata; spira parva, vix prominente, sutura mediocri; anfr. 4\, lente accrescentibus, convexiusculis, ultimo regulariter rotundo-convexo, non descendente; umbilico ^ diametri eequante; apertura obliqua, lunata ; peristomate tenui, recto. Diam. maj. 0*37, min. 0*33, alt. 0*14 une. Hab. Tasmania. The two specimens in my collection are both imperfect in the mouth, so that I cannot describe the upper part of the columella. 4. HELIX WELLINGTONENSIS, mihi. H. testa umbilicata, depresso-orbiculari, subdiscoidea, tenui, costulis filosis subarcuatim radiantibus munita, scepe usque ad umbilicum extendentibus, non nitente, vitreo-albo ad sordide luteum variante; spira parva, vix elevata; anfr. 4, lente accrescentibus, modice convexis, ultimo prominente, convexo, non descendente; umbilico j)erspectivo, -*- diametri eequante; apertura modice obliqua, lunata; peristomate simplici, tenui, recto, marginibus conniventibus, columellari non dilatato, nee refiexo. Diam. maj. 0*27, min. 0*23, alt. 0*14 une. Hab. Mount Wellington, Tasmania. Closely allied to H. diemenensis, but with fewer and more threadlike ribs, besides differing in other respects. This shell and H. ha-miltoni were both presented to me while iu Tasmania with the specific names now given (by whom I know not) attached ; but I have no reason to suppose that descriptions of them have ever been published. 5. HELIX ALBANENSIS, mihi. II. testa umbilicata, depresso-convexa, arcuatim acute fiexuoso-costata, solidiuscula, haud nitida, flavescente, superne fasciis plurimis rubro-fuscis brevibus radiantibus ornata ; spira modice conoidea, obtusa, sutura impressa; anfractibus 5, lente accrescentibus, subconvexis, ultimo rotundato, ad os subinfiato; umbilico perspective, -| diametri occupante; apertura rotundato-lunata, modice obliqua; peristomate tenui, simplici, marginibus conniventibus, callo tenui junctis. Diam. maj. 0*20, min. 0*18, alt. 0*12 une. Hab. Port Albany, Western Australia (Masters). This would come under the subgenus Discus, along with H. cygnea, Bens., and H. sublesta, Bens., of the same colony, but is |
