166 IIELIX §. 48. 



Pilhys Atiensis Ilarper Pease in Crosse Journ. Conch. XVIII. 



1870. p. 394. 

 Pilys Aliensis Pease in Proc. Zool. Soc. 1871. p. 453. 

 Ilabitat in insula Aliu. 



Obs. «Species //. modiccUae Fer. (ex Desh. tenuissime strialae) pro- 

 xima, spira raagis elevata, umbilico apertiore et coloribus distinguenda.» 



975. H. architcctonica Brazicr. •{• 



«Testa sublate umbilicata, depresso-orbicularis, tenuis, 

 vitrea, nitida, regulariter et conferte arcuato-costata, interstitiis 

 subtilissime striatis; spira satis elevata, sutura impressa; anfr. 5, 

 convexi, ultimus magnuS; convexus, antice parum descendcns; 

 sublus convexus, pariter sculplus ut superne; umbilicus am- 

 plus, fundo angustus; apertura fere verticalis^ rotundato-lunala; 

 peristoma simplex, tenue, acutum, marginibus approximatis. — 

 Diam. maj. 1%, min. ly^, alt. % lin.» (B. angl. ) 



Helix architectonica (Pitys) Braz. in Proc. Zool. Soc. 1871. 

 p. 696. 



Habitat prope Ilobart Town Tasmaniae (Pelterd). 

 Obs. Species affinis H. pexae Cox. 



976. H. assitnilis Brazicr. ^ 



«Testa late umbilicata, subdiscoidea, tenuis, diaphana, vi- 

 Iracea, nitida, sordide fusca^ undique regulariter et obliquc 

 subtiliter costata, interstitiis sub lenle minute striatis; spira 

 perparum elevata, apice obtuso, sutura impressa; anfr. 5 — 5^25 

 modice convexi, ultimus convcxus, antice leviter descendens, 

 basi convexus; umbilicus amplus, modice profundus, fundo ro- 

 tundatus; apertura obliqua, rotundato-lunata; peristoma sim- 

 plex, rectum, acutum, marginibus subdistantibus, dextro vix 

 expansiusculo, columeliari non reflexo. — Diam. maj. I V^, 

 min, 1^4) alt' 7^ ^^^•''^ i^- «"^S^-) 



Helix assimilis (Pitys) Braz. in Proc. Zool. Soc. 1871. p. 697 

 Ilabitat prope Hobart Town Tasmaniae (Petterd). 



977. H. adposita (Patula) Mousson. •{• 



«T. anguste umbilicata, convexo-orbiculata, tenuiter et in- 

 aequaliter sed acute oblique plicoso-striata, cornea. Spira con- 

 vexiuscula, modicc spirata; summo minuto, obtuso; sulura im- 

 pressa. Anfr. 4^/2 modice accrescentes, convexiusculi^ supra 

 arcte tumiduli; ullimus paulo major; non descendens, ad sutu- 

 ram et ad umbilicum magis, caetcrum minus rolundatus. Aper- 

 tura subverticalis (20*^ cum axi), late lunato-circularis, plicis 



