margine fJexiro inira inserlioiimi quasi in alarn latiuscu- 

 lam |)roiiuc<o. — Diain. maj. 9, min. vix 8, alt. T'/a in'H. 

 Habital in Mexico. 



7. Uelitma Antoni Pfr. (Nr. 57.) 

 T. globoso-conica , lenuis, irrcgiil.iriter et leviter ru- 

 gosula, nitidula, lutcscenli cornea; .*ipira conoidea, obtusa; 

 anfr. 4 oonvexi, ultinius obsolete anguhitiis, basi plarnuscu- 

 lus, nieflio subinipressus; aperfura obliqua, senn'ovalis; 

 columella siniplex, breviter recefiens, angulo siibrecto in 

 perist. tenne, expansiusciiliini abiens; callus basalistenuis- 

 simus, difFusus. — Oiani. maj. 3, min. 2V35 al<. 2'/4 miH- 

 Habitat ? 



S. Helicina Küderiana Pfr. (Nr. 66.) 

 T. depressa, tenuiuscnia, oblique striata et lineis ele- 

 vatis coneentricis distantioiibus, brevissime pilosis munita, 

 diaphana, paliide cornca; .spiia lirevis, oblusa; anfr. vix 

 3 Vi convexiuscuii, ultimus <lepressus, antice non <lescen- 

 dens, basi parum convexusj apertuia oidiqua, liiangulari- 

 semiovalis; columella bievissima , simplex, retror.sum in 

 callum semiciicularem, vitrcum, antice in perist. simplex, 

 tenue, expansiusculum abiens. - Diam. maj. 4V8j min. 4, 

 alt. 2V2 mill. 



Habitat in ins. Otaheile. 



9. Helicina Besckei Pfr. (Nr. 89.) 

 T. subsemiglobosa, solida, subtilissime striatula, sub- 

 laevigaia, opaca , citrina unicolor vel (ascia 1 sanguinea 

 juxta suturam ornata, vel omnino rubiciinda; spira brevis. 

 convexo-conoidea , submucronata; anfr. 5 subplani, ulti- 

 mus ad peripheriam earina 1 acuta, pluribusque obtusiori- 

 bus munitus; apertura obliqua, siibtriangularis; columella 

 breviter recedens, basi obsolete angulata; perist. expan- 

 suni, subincrassatum, njargine supero slrictiusculo, basali 



