112 



24. Cyclostoma (Leptopoma) "Wallacei, Pfr. T. perforata, 

 globoso-turhinata, tenuis, obliąue striata et carinis 5-6 sub- 

 acutis, lirisąue minoribus spiralibus munita, diaphana, albida, 

 fasciis fuscis varie signata ; spira elato-turbinata, acutiuscula ; 

 anfr. 5 perturgidi, subangulati, ultimus basi albidus ; apertura 

 obliąua, subcircularis ; perist. simplex, album, breviter inter- 

 ruptum, margine dextro cEąualiter patente, sinistro superne 

 sinuato, tum svbangulatim producto. — Operc. pallide corneum. 



Diam. maj. ll,inin. 9, alt. 9 mill. 

 Hab. Borneo (JFallace). 



25. Cyclostoma (Cyclophorus?) ^quivocum, Pfr. T. im- 

 perine umbilicata, globoso-turbinata, solida, sublcevigata (^de- 

 trifa) rubella, castaneo obsolete trifasciata ; spira turbinata, 

 acutiuscula ; anfr. ž)\ convexi, idtimxis turgidus, infra medium 

 obsoletissime angulatus ; apertura verticalis, circidaris ; perist. 

 duplex : internum porrectum, igneo-fuscum, externum latiuscule 

 et horizontaliter patens, ad anfr. contiguum excisum. 



Diam. maj. 28, min. 20, alt. 20 mill. 

 Hab. Madagascar. 



26. Cyclostoma (Cyclophorus ?) lignarium, Pfr, T. an- 

 guste umbilicata, turbinata, tenuiuscula, obliąue irregulariter 

 striata, sub epidermide opaca lignaria rufa ; spira conica, con- 

 vexiusc\da ; anfr. 5^ convexi, ultimus basi subplanatus ; aper- 

 tura diagonalis, ovali-rotundata ; perist. duplex : internum 

 album, adnatum, subcontinuinn, extemum, membranaceum, an- 

 guste expansum, ad anfr. contiguum excisum. 



Diam. maj. 5, min. 4f, alt. 4 mill. 

 Hab. New Zealand. 



27. Hydrocena Chinensts, Pfr. T. perforata, ovato-turrita, 

 vix striatula, nitida, livido-fusca ; spira elongato-conica, acu- 

 tiuscula ; anfr. 7 convexiusculi, ultimus \ longitudinis paulo 

 superans, infra peripheriam angulatus, basi subplanatus ; aper- 

 tura parum obliąua, tetragono-ovalis ; perist. sitnplex, rectum, 

 margine columellari subdilatato, patente. — Operc. membrana- 

 ceum, pallidum. 



Long. 15, diam. Smili. 

 Hab. China. 



28. Hydrocena vulpina, Pfr. T. perforata, globoso-conica, 

 solida, Icevigata, rubella ; spira conica, acutiuscula ; anfr, 5 

 modice convexi, idtimus spiram ceąuans, rotundatus ; apertura 

 parum obliąua, angulato-ovalis ; perist. subcontinuum, adnatum, 

 margine dextro subi7iJiexo, columellari calloso. — Operc. tenue, 

 castaiieum, paucispirum. 



Long. 8, diam. 6 mill. 

 Hab. Fox Islands. 



29. Hydrocena (Omphalotropis) cerea, Pfr. T. vix per- 



