HELIX &. 6. 01 
92. H. noduiata (Nanina) Mousson. 4 
«T. imperforata, globoso-depressa, tenuis, pellucida, po- 
lita, lubriea, intense cornea. Spira obtuse «depresso -conica, 
arcte spirata; summo obtuso; sutura subimpressa, adnata, sub- 
marginata. Anfr. 6, lente accrescentes, convexiusculi; ultimus 
non descendens, rotundatus, supra declivis, basi convexus, in 
medio impressus. Apertura subverticaüis (8? cum axi), regu- 
lariter lunato-circularis.  Perist. rectum, acutum; marginibus 
remotis; dextro magis, basali minus curvato; columellari brevi, 
nodulo albo dentiformi inerassato. — Alt. 2,3, diam. 5,1 mill. 
— Rat. anfr. 3: 1. — Rat. apert. 5: 7.» (M.) 
Nanina nodulata (Microcystis) Mouss. in Journ. Conch. XVIII. 
4870. p.444. X. 7, f... 
— — — Pütel Cat. p. 85. 
Habitat Vanua-Balavo insularum Feejee (Gráffe). 
93. H. excrescens (Nanina) Mousson. 4 
« T. imperforata, eloboso-depressa, tenuis, pellucida, niti- 
dissima, lubrica, intense cornea. Spira depresse convexa, 
regularis; summo planiusculo; sutura lineari, breviter adnata, 
submarginata. Anfr. 4!/, satis convexiusculi, ultimus non de- 
scendens, regulariter rotundatus, basi leniter et breviter im- 
pressus.  Apert. subverticalis (15? cum axi), exacte lunato- 
circularis. Perist. rectum, acutum; marginibus remotis; dextro 
et basali regulariter curvatis; columellari insigne incrassato sub 
forma dentis, inferne et antrorsum producti.— Alt. 3,5, diam. 
5 mill. — Rat. anfr. 3:1. — Rat. apert. 4: 5.» (M.) 
Nanina ezccrescens (Microcystis) Mouss. in Journ. Conch. XVIII. 
1810. p34452 0 1:25:55 XIX 1871, 
AS 
e ins rr Pülel Cat. p. 84. 
Habitat Viti-Levu insularum Feejee et in insulis Tonga (Gráfte). 
94. H. Futunaénsis (Nanina) Mousson. 4| 
«T. imperforata, depresso-globulosa, tenuis, pellucida, 
nitidissima, fusco-cornea. Spira convexa, regularis; summo 
obtuso; sutura lenis, adnata, submarginata.  Anfr. 5!5, fere 
convexiusculi; ultimus non descendens, valde rotundatus, supra 
declivis, infra minus convexus, in centro impressus. Apertura 
subverüicalis (69 cum axi), lunato-circularis.  Perist. rectum, 
acutum, marginibus remotis; dextro magis, basali minus cur- 
vatis; columellari de pariete, intus oblique duplicato, ad finem 
abscisso. — Alt. 3,2, diam, & mill, — Rat. anfr, 8: 3. — Rat. 
apert. &: 5.» (M.) 
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