HELIX &. 8. ri 
Anfr. 4!/,—5, regulariter et lente accrescentes, plani, ad cari- 
nam perspicuam minime excavati; ultimus non descendens, sub- 
acute carinatus, utrinque paulo compressus, basi convexius- 
culus, medio impressus, politus, radiatim et sinuose indistincte 
fasciatus. | Apert. non obliqua (609 cum axi), securiformis. 
Perist. rectum, subacutum, marginibus non convergentibus; 
supero antrorsum obliquo, basali leniter sinuato, ad insertio- 
nem callose reflexo et adnato. — Diam. maj. 7, min. 6, alt. 4 
—4,5 mill.» (M.) 
Trocho— Nanina eaposita Mouss. in Journ. Conch. XXL 1873. 
p»s141:70 2:058 72: 
Habitat Sunday Island Archipelagi Kermandec (Gràálffej. 
Obs. «Affinis H. insculptae Pfr.» 
* 
122. Mariae (Nanina) Gray. (Coll. 51.) I. 81. III. 39. IV. 17. V. 58. 
— Heliy umbraculum Pfr. olim. — Nova Seelandia. 
1283. cultrata Gould. T I. 37. IIl. 40. IV. 17. V. 58. — Nanina cul— 
trata, Gray. — Sagda culirata. Ad. —  Helicopsis cultrata Pease 
in Proc. Zool. Soc. 1874. p. 456. — Taheiti, Eimeo. 
124. pertenuis Gould. Jj 1. 38. III. 40. V. 58. — Nanina pertenuis 
Gray. —  Helicopsis pertemuis Pease in Proc. Zool. Soc. 1871. 
p. 475. — Ins. Aurora. 
125. Tongana Quoy & Gaim. (Coll. 52.) I. 38. III. 40. IV. 17. V. 58. 
— Nanina Tongana Alb., (Yrochonanina) Mouss. in Journ. Conch. 
XIX. 1874. p. 9. — Conf. Schmeltz in Mus. God. cat. V. p. 91. 
— Discus Pütel Cat. p. 85. — "Tonga Tabou, Rarotonga, ins. 
Philippin. 
126. H. venosa Pease. 4| 
«T. orbieularis, glabra, imperforata, tenuis; spira sub- 
conica, obtusa; anfr. 5, convexiusculi, gradati, ultimus ad pe- 
ripheriam carinatus, basi convexus; apertura ovato -lunaris. 
Pallide cinereo-lutescens, lineis tenuibus, nigricantibus radiatim 
et concentrice ornata. — Diam. 8, alt. 5 mill.» (P.) 
Helic venosa Harper Pease in Tryon Amer. journ. Conch. Il. 
p. 290; t, 94. f, 2. 
Helicopsis venosa Pease in Proc. Zool. Soc. 1871. p. 475. 
Habitat in Polynesia, Rarotonga. 
127. H. frivola Peasc. 4 
«T. parva, subgloboso-conica, tenuis, laevis, glabra, im- 
perforata; anfr. 4, obsolete carinati, sutura impressa, vix mar- 
ginata; apertura obliqua, lunato-ovalis. Pallide straminea. -— 
Bam. 5'5, alt. 3!/5 mill.» P.) 
