APPENDIX. 381 



Archipelago, under dead leaves chiefly about the roots of 

 trees. 



PupiNA Thomsoni. Tab. iii. fig. 2. a^ b. 



Testa ovata, polita, nitidissima, translucens, hyaHna, 

 solidiuscula ; spira obtusa ; anfractus 5, duo ultimi majores ; 

 apertura orbicularis ; peristoma albunij crassum, solutum, 

 canalibus duobus iuterruptum ; canalis superior ad partem 

 superiorem et externam aperturse, inferior major, basahs, 

 marginibus disjunctis et in dorsum anfractus prolongatis. 

 Long. 'J^, diam. 4^, apert. 2 mill. (Mus. Brit.) 



This remarkable and beautiful little Pupina is most 

 nearly allied to the P. hilingnis of Cape York. From 

 that species (which is larger) it differs, however, very ma- 

 terially, most especially in the position of the inferior or 

 basal canal of the aperture which is here placed like the 

 canal of a whelk, but in P. hilinguis is very small and 

 placed high up, cutting as it were the columella. The 

 curious manner in which the margins of the canals are 

 prolonged on the back of the body whorl like parallel and 

 somewhat diverging -walls is also a singular feature of this 

 species, which is dedicated to Dr. Thomson, surgeon of the 

 Rattlesnake, and an excellent botanist. It was found among 

 dead leaves at the roots of trees in Fitzroy Island. 



Helicina Stanleyi. Tab. iii. fig. 4. a, b. 



Testa lenticularis, superne inferneque convexa, orbicu- 

 laris, acute carinata, fusco-carnea, spiraliter striata ; spira 

 obtusa ; anfractus 4^ leviter convexiusculi ; basis imper- 

 forata, centraliter lse\dgata, alba ; apertura obHque sublu- 

 nata, angulata; peristoma simplex, tenue. Diam. maj. 

 G\, min. 6, alt. 5 mill. (Mus. Brit.) 



Found on the leaves and trunks of trees and bushes 

 (especially Sccevola Kcenigii) in the Ducliateau Isles, 



