374 DR. J. C. COX ON NEW AUSTRALIAN LAND-SHELLS. [June 26, 



Richmond River, at Cowlong (in cedar-brushes under logs) (Mac- 

 gillivray). 



This shell bears much general resemblance to specimens of H. 

 mansueta from the Pine Mountain, Lismore, Richmond River (which 

 are darker than Queensland specimens) ; but the pilose surface, the 

 white lip, the narrower and more covered umbilicus are very di- 

 stinctive characters in H. porteri, which is besides closely allied to 

 the more diminutive //. brevipila, and occupies a place between it 

 and H. mansueta. 



Helix conscendens, mihi. M.C. 



H. testa imperforata, globoso-turbinata, per tenui, pellucida,semi- 

 vitrea, nitidiuscula, sub lente obsolete striata, albida, fascia 

 p>lus minusve colorata ornata ; spira conoidea, upice colorata ; 

 anfractibus sex, convexiusculis, ultimo peramplo, paululum de- 

 jlexo, carina obsoleta ; apertura lunato-ovata ; peristomate 

 tenui, margine externa subsinuato, columellari supra tenuiter 

 reflexo. 

 Diam. maj. 0"60, min. 050, alt. 055 unc. 



Hab. Lismore, Upper Richmond River (on trees in the pine- 

 brushes) (Macgillivray). 



The band varies in intensity of colour from deep black bordered 

 with red to reddish brown or pinkish, and in old specimens is very 

 faintly indicated. 



Helix fenestrata, mihi. M.C. 



H. testa minute umbilicata, globoso-conica, carinata, tenui, 

 cinereo-fulva, lineis rugosis elevalis plurimis irregulariter cos- 

 tata cceterisque spiralibus decussata, speciem fenestratam for- 

 mantibus prcesertim versus apicem ; spira conica, apice obtusa ; 

 anfractibus sex, convexiusculis, ultimo subacute carinato ; aper- 

 tura subangulato-lunata, intus margaritacea; peristomate tenui, 

 acuto, ad columellam modice expanso et umbilicum subtegente. 



Diam. maj. 0-33, min. 0-30, alt. 0-2/ unc. 



Hab. Pine Mountain, Lismore, Upper Richmond River (on trunks 

 of trees) {Macgillivray). 



Helix corticicola, mihi. M.C. 



H. testa aperte umbilicata, depresso-circulari, nitidiuscula, epi- 

 dermide fulvo-rufescente vestita, penicillis pallidioribus supra 

 irradiata, irregulariter subcrasse costata, infra laviuscula, 

 lineas spirales obsoletas sub lente exhibente ; spira depressa ; 

 anfractibus quinque, declivi-convexis, pergradatim increscenti- 

 bus, ultimo obtuse carinato, ad os obsolete ; apertura lunato- 

 subcirculari ; peristomate tenui, simplici, non ad columellam 

 dilatato. 



Diam. maj. - 30, min. 0'25, alt. - 15 unc. 



Hab. Lismore, north arm of Richmond River (under bark) {Mac- 

 gillivray). 



Closely allied to H. urarensis. 



