126 
8, convexiusculis, ultimo 4 longitudinis vix equante, convexiore ; 
columella perarcuata, abrupte truncata; apertura verticali, 
irregulariter ovali; perist. simplice, recto, margine dextro levi- 
ter arcuato. 
Long. 18, diam. 8 mill. 
Hab. ? 
16. Acuatina Maniensts, Pfr. 4 festa subrimata, ovato- 
oblonga, solidula, sublevigata, pallide cornea; spira convexo- 
turrita, apice obtusa; sutura marginata ; anfr. 6, viz convexi- 
usculis, ultimo 2 longitudinis subequante, basi subcompresso ; 
columella verticali, introrsum subtorta, ad basin aperture sub- 
rhombeo-ovalis truncatula; perist. simplice, obtuso, margine 
columellari reflexiusculo, adnato. 
Long. 7, diam. 3 mill. 
Hab. Mani, Sandwich Islands (Dr. Newcomb). 
3. DescRIPTIONS OF ELEVEN New SPECIES OF CYCLOSTOMACEA, 
FROM THE COLLECTION oF H. Cuming, Esa. 
By Dr. L. Preirrer. 
1. CycLostoma (CyCLOPHORUS) ALABASTRINUM, Pfr. C. testa 
umbilicata, subdepresso-turbinata, solida, sublevigata, spira- 
liter minutissime striata, alabastrina; spira turbinata, sursum 
livido-fusca, apice convexiuscula; anfr. 5, convexis, celeriter 
accrescentibus, ultimo peripheria obsoletissime subangulato et 
antice rudimenta fascie castanee exhibente, basi inflato ; um- 
bilico angusto, viv pervio; apertura vix obliqua, circulari; 
perist. fulvo-carneo, continuo, breviter adnato, crasso, undique 
reflexo, margine sinistro subdilatato. 
Diam. maj. 45, min. 34, alt. 25 mill. 
Hab. Ceylon (Mr. Thwaites). 
2. CycLtostoma (CycLopHorvus) potyNema, Pfr. C. festa 
umbilicata, depresso-turbinata, tenuiuscula, oblique striatula et 
lirts filiformibus confertissimis, subtus obsoletioribus, cincta, 
superne flammis angulosis lete castaneis et albidis variegata ; 
spira brevi, turbinata, apice obtusula; anfr. 44, convexiusculis, 
rapide accrescentibus, ultimo ad suturam antice subplanato, 
peripheria obsoletissime angulato et fascia lata, nigro-fusca, 
deorsum diluta ornato, circa umbilicum mediocrem pallido ; 
apertura obliqua, subrotundata, latiore quam alta; perist. albo, 
continuo, breviter adnato, margine dextro expansiusculo, colu- 
mellart breviter revoluto. 
Diam. maj. 33, min. 26, alt. 17 mill. 
Hab. 2 
3. CycLostoma (CycLopHoRUS) EXCELLENS, Pfr. OC. testa 
umbilicata, subturbinato-depressa, solida, confertim spiraliter 
