378 APPENDIX. 



ultimus carinatus, basi subplanatiis ; apertura oblique 

 oblonga, intus brunneaj margine externo bisinuato ; peris- 

 toma album, incrassatum, infra reflexum ; columella basi . 

 rufesceus. Diam. maj. 23, min. 19, alt. 21, mill. (Mus. 

 Brit, and Geol.) 



Of all Australian Helices, tbis is perbaps tbe most 

 curious. Its outline and aspect are singularly like tbose 

 of a Irochus of tbe Ziziphinus group. The colour is also 

 very singular, being a yellowish flesh hue deepening on 

 the base to rich brownish-yellow, and speckled irregularly 

 with minute black dots which are areolated with white, 

 the white ring being largest on the side towards the 

 mouth. The fine striae that encircle the body are also 

 very curious. The outer lip of the apertiu"e seems as if it 

 had been dented in two places. Behind the white 

 thickened peristome, iuternally is a dark brown band, 

 which is seen through the shell as a dark blackish green 

 stripe. The edge of the outer lip declines to join the body 

 whorl a httle below the keel. It was found on trunks and 

 branches of trees in the Frankland Isles. 



Helix Dunkiensis. Tab. ii. fig. 7- a, b. 



Testa umbilicata, depresso-globosa, subcarinata, solida, 

 radiato striata et subtilissime granulata, fla\'ida ; spira late 

 depressa, convexiuscula, apice obtusa ; anfractus 6 con- 

 vexiuscidi, ultimo obsolete carinato ; apertura lunaris, 

 intus alba; peristoma superne rectum, margine basali 

 margine columellarique sub-reflexis, umbilicus profundus, 

 conspicuus, vix obtectus. Diam. maj. 24, min. 21, alt. 16, 

 mill. (Mus. Brit.) 



This snail strikingly resembles some lUyrian forms. It 

 has affinities with H. coriaria, a species said to be from 

 Ceylon. It was taken under stones and about ropts of 

 trees in Dunk Island, on the N.E. coast of Australia. 



