4. Cyclostoma bicolor (Leptopoma), Pfr. (PI. XIII. fig. 9.) 

 C. testa perforata, globoso-turbinata, tenui, sub lente confer- 

 tissime spiraliter striata, diaphana, albida, castaneo-bifasciata ; 

 spira turbinata, obtiisula ; anfr. 5, convexiuscidis, ultimo rotun- 

 dato, lineis 3-4 distantihis, vix filoso-elevatis munito; apertura 

 obliqua, subcirculari ; perist. simplice, subcequaliter amjxdatim 

 expanso, marginibus callo tenuissimo junctis, columellari leviter 

 sinuato. 



Diam. maj. \3\, min. 10, alt. 10 mill. 

 Locality unknown. 



5. Cataulus pyramidatus, Pfr. (PI. XIII. fig. 4.) C. testa 

 subperforata, ovato-pyramidata, solida, distincte subarcuatim 

 et confertim striata, sericea, saturate castanea ; spira turrita, 

 apice acutiuscula ; anfr. 1-1\, niodice convexis, ultimo non at- 

 tenuate, basi axin vix excedente ; carina basali compressa, an- 

 tice vix dilatata ; periomphalo latiusculo, profundius striata, 

 medio turgido ; apertura subcirculari; perist. albo, continue, 

 breviter adnate, incrassato, horizontaliter patente et refexius- 

 cule, basi vix preducte, canali mediocri, perforate. 



Long. 23-29, diam. 10-12^ mill. 

 From Ceylon. 



6. Cataulus eurytrema, Pfr. (PI. XIII. fig. 5.) C. testa 

 subperforata, subfusiformi-oblonga, solida, subarcuato-striata, 

 vix nitidula, castanea ; spira turrita, apice obtusiuscula ; anfr. 

 8§, convexis, ultimo angustiore, basi oblique supra axin pre- 

 tracto ; carina basali valida, compressa, antice sensim tubce 

 instar dilatata; apertura circulari; perist. carnee, continue, 

 breviter adnate, incrassato et reflexo, parte sinistra marginis 

 basalis canali magna, subcirculari, retrorsum in rimam f lifer- 

 mem abeunte, perforata. 



Long. 26, diam. 10 mill. 

 From Ceylon. 



7. PupiNA NicoBARiCA (Registoma), Pfr. P. testa imper- 

 forata, ovato-conica, solidula, glaberrima, nitida, pallide isabel- 

 lina ; spira convexa, sursum conica, acutiuscula ; sutura lineari ; 

 anfr, 5, vix convexiusculis, ultimo oblique descendente, antice 

 breviter ascendente, basi retundato ; apertura subverticali, cir- 

 culari, nodule callose minute juxta insertionem marginis dextri 

 cearctata ; perist. simplice, vix expansiuscule, margine colu- 

 mellari subincrassato, incisura brevi, subascendente a basali 

 separate. 



Long. 6, diam. 3 mill. 

 From the Nicobar Islands. 



8. Heucina bulla, Pfr. H. testa globoso-conica, tenui, sub 

 lente punctulate-striatula, vix nitidula, diaphana, hyaline-alba ; 

 spira mediocri, ceneidea, acutiuscula; anfr. 5, planiuscidis, 

 ultimo retundato, antice subascendente; columella brevi, ar- 

 cuata, extus subnedosa, callum tenuissimum hyalinum retrersum 



No. CCXLVII. — Proceedings of the Zoological Society. 



