6 VITRINA §. 6 — 8. 



approximatis, dextro antrorsum dilatato, columellari recedente, 

 perarcuato, angustissime membranaceo-marginato. — Diam. 

 maj. 10, min. TV^, alt. 5 mill. (Goll. Nr. 30.) 



Vitrina Strangei Pfr. in Proc. Zool. Soc. 1849. p. 132. 

 Habitat Brisbane in ora orientali Novae Hollandiae (Strange). 



Obs. Similis iconi V. nigrae Quoy , sed anfractiium numero et mar- 

 gine columellari valde recedente facillime distinguenda. 



60. Zebra Guill. -j- Mon. II. p. 509. 



61. tenella Gould. f (Proc. Bost. Soc. 1846. p. 4 81 



et Exped. shells iSbi. p. 11 . f. 10.) - - - 509. 



62. caperata Gould. ^ (Proc. Bost. Soc. i 846. p. i 81 



et Exped. shelis 1851. p. 10. f. 9.) - - - 509. 



63. V. dimidiata Pfr. 



T. depressissima, ambitu ovalis, tenuissima, subtiliter 

 arcuato-striata, sericina , pallide cornea; spira subplana; anfr. 

 2^4 subtus aperti, vix membranaceo-marginali; apertura ho- 

 rizontalis totam testam occupans; perist. simplex, marginibus 

 regulariter arcuatis. — Diam. maj. Sy^, min. 4, alt. i Vg mill. 

 (Mus.- Cuming.) 



Vitrina dimidiata Pfr. in Proc. Zool. Soc. 1851. 

 Habitat in Nova Seelandia. 



§. 7. 

 64. Ang^elicae Beck Mon. 11. p. 509. 



65. V. Americana Pfr. 



T. depresse semiglobosa, tenuissima, laevigatissima, niti- 

 dissima, virenti-hyalina; spira parvula, vix elata; sutura sub- 

 crenulata; anfr. Sy^ convexiusculi, celeriter accrescentes, ul- 

 timus subrotundatus, subtus latiusculus, anguste membranaceo- 

 marginalus; apertura fere diagonaHs, lunato-rotundata ; perist. 

 simplex, regulariter arcuatum , margine supero antrorsum sub- 

 diiatato. — Diam. maj. 4, min. 3, alt. 2 mill. (CoII. Nr. 31.) 

 Vitrina Americana Pfr. in Proc. Zool. Soc. 1851. 



— pellucida De Kay New-York Moll. p. 25. t. 3. f. 42? 



— limpida Gould in Agass. Lake Super. p. 2 43? 



Habitat in Statibus Unitis. 



Obs. Forma persimilis V. annulari, tesfa laevigatissima , apertura 

 obliqua, etc. diversa. 



66. Mexicana Beck. -I* Mon. II. p. 54 0. 



§. 8. 



67. fumosa Pfr - - - 510. 



68. virensPfr.(Coll. 32. — Proc.Zooi.Soc. i848.p.l08.) - - - 510. 



