HELIX §. 107. 255 



SLipra uinbilicum dilatato. — Diam. maj. !23, min. lOy^, alt. 

 12 mill. (Mus. Cuming. et Coll. Nr. 867.) 



Helix antrorsa Pfr. in Pioc. Zool. Soc. 181)5. p. 113. 

 — — (Geotrochus) Pfr. Vers. p. 143. 



Habitat in iusulis Admiralitatis « Haman Island.» 



1630. vitrea Fer. -f (Geotrochus Pfr. in Mal. Bl. 1854. 



p. IS5.) Mon.III. p 219. 



1631. Poeyi Pet. (Coll. 868. — Rv. n. 267. t. 55. — 



Gcolrochus Pfr. in Mal. Bl. 1854. p. 184. — Pfr. 

 Vers. p. 145. — H. staminea Mk. — Geotrochus 

 velutinata Beck. — Cochlea Poeyi [Otala] Ad. Gen. 



p. 197.) : - - - 219. 



1632 Blainvillei Guill. -J- - I. - 327 



1633. H. plagiostoma Pfr. 



T. oblique umbilicata , trochiformis , tenuiuscula , Icviter 

 striata, nitida, fulva; spira conica, acutiuscula; sutura sub- 

 marginata; anfr. 6 convexiusculi , ultiums antice vix descen- 

 dens, carinatus, basi planiusculus; apertura perobliqua, sub- 

 rhombea; perist. simplex, marginibus convergentibus, dextro 

 late expanso , antrorsuni arcuato , basali reflexo , cum colu- 

 mellari triangulatim dilatato, libero, umbilicum non claudente, 

 anguliim obtusum formante. — Diam. maj. SSy^, min. 19, alt. 

 21 mill. (Mus. Cuming.) 



Helix plagiostoma Pfr. in Proc. Zool. Soc. 1836. p. 381; Malak. 



Bi. 1856. p. 238. 

 Habitat in insulis Admiralitatis. 



* 



1634. Arrowensis Guill. •{• Mon. I. p. 327. 



1635. reflexiuscula Pfr. -f (//. liyalina Guill.) .... - - - 327 



1636. albula Guill. f - -- 328. 



16.37 Ternatana Guill. -^ - -- 328. 



1638. Capitium Bens. [Rv. n. 749. t. 125. — Ch. ed. 



nov. III. p. 291. — Geolrochus Pfr. Vers. p. 145.) - III. - 220. 



1639. pileiformis Moric. (Coll. 869. — Rv. n. 589. 



t. 106. — Gcolrochus Pfr. Vers. p. 145. — Acavus 



pileif. [Geotrochus] Ad. Gen. p. 196.) - - -219. 



1640. H. singularis Pfr. 



T. sinistrorsa, perforata, trochiformis, solidiuscula, per- 

 oblique striata, epidermide fulvo-fusca induta; spira subcon- 

 cavo-conica, apice acutiuscula; anfr. 6V2 couvexiusculi, ultimus 

 subacute carinatus , antice vix descendens , basi convexior ; 

 apertura perobliqua, transverse truncato-ovalis; perist. album, 

 marginibus vix convergentibus, externo expanso, columeliari 



