112 



2-1. Cyclostoma (Leptopoma) Wallacei, Pfr. T. perforata, 

 globoso-turbi nat a, tenuis, oblique striata et carinis 5-6" sub- 

 acutis, firisqi/e minor/bus spiralil)us munita, diaphana, albida, 

 fasciis fuseis varie signata ; spira elato-turbinata, acutiuscida ; 

 anfr. .") perturgidi, subangulati, ultimus basi albidus ; apertura 

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

 ruption, tnargine dexfro tequaliter patente, sinistro superne 

 sinuato, turn subangulatim producto. — Operc. pallide corneum. 



Diam. maj. LI, min. 9, alt. 9 mill. 



Ilab. Borneo ( Wallace). 



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

 pervie umbilicata, globoso-turbinata, solida, sublcevigata (de- 

 trifa) rubella, castaneo obsolete trifasciata ; spira turbinata, 

 acutiuscida ; anfr. 5^ convexi, ultimus turgid us, infra medium 

 obsotetissime angulatus ; apertura verticalis, cireularis ; pe?'ist. 

 duplex : internum porrcctum, igneo-fuscum, externum latiuscule 

 et horizontaliter patens, ad anfr. contiguum excisum. 



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

 Ilab. Madagascar. 



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



guste umbilicata, turbinata, tenuiuscula, oblique irregulariter 

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

 vexiuscula ; anfr. f>£ convexi, ultimus basi subplanatus ; aper- 

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

 album, adnatum, subcontinuum, externum, membranaceum, an- 

 guste expansum, ad anfr. contiguum excisum. 



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



Hub. New Zealand. 



27. Hydrocena Chinensis, 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 obliqua, tetragono-ovalis ; perist. simplex, rectum, 

 margine columellari subdilatato, patente. — Operc. membrana- 

 ceum, pallidum. 



Long. 15, diam. 8 mill. 

 Ilab. China. 



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

 solida, laevigata, rubella; sjrira conica, acutiuscida ; anfr. 5 

 modice convexi, ultimus spiram cequans, rotundatus ; apertura 

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

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

 castaneum, pavcispirum . 



Long. 8, diam. G mill. 

 Ilab. Pox Islands. 



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



