HELIX §. 6. 67 



92. H. nodulata (Nanina) Mousson. •{• 



«T. imperforata, globoso-depressa, lenuis, pellucida, po- 

 lila, lubrica, intense cornea. Spira obtuse depresso-conica, 

 arcte spirata; summo obtuso; sutura subimpressa, adnata, sub- 

 marginata. Anfr. 6; lente accrescentes, convexiusculi; uitimus 

 non descendens, rotundatus, supra declivis, basi convexus. in 

 medio impressus. Apertura subverticalis (8" cum axi), regu- 

 lariter lunato-circularis. Perist. rectura, acutum; marginibus 

 remotis; dextro magis, basali minus curvato; columellari brevi, 

 nodulo albo dentiformi incrassato. — Alt. 2,3, diam. 5,i mill. 

 — Rat. anfr. 3:1. — Rat. apert. 5 : 7.» (M.) 



Nanina nodulata (Microcystis) Mouss. in .lourn. Conch. XVIII. 



1870. p. 114. t. 7. f. 4. 



— — — Patel Cat. p. 85. 

 Habitat Vanua-Balavo insularum Feejee (Graffe). 



93. H. excrescens (Nanina} Mousson. •}• 



« T. imperforata , globoso-depressa, tenuis, pellucida, nili- 

 dissima, lubrica, intense cornea. Spira depresse convexa, 

 regularis; summo planiusculo; sutura lineari, breviter adnata, 

 submarginata. Anfr. 4^2» satis convexiusculi, ultimus non de- 

 scendens, regulariter rotundatus, basi leniter et breviter im- 

 pressus. Apert. subverticalis (15^ cum axi), exacte lunato- 

 circularis. Perist. rectura, 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 excrescens (Microcystis) Mouss. in Journ. Conch. XVIII. 



1870. p. 115. t. 7. f. S; XIX. 1871. 



p. 8. 



— — — Patel Cat. p. 84. 



Habitat Viti-Levu insularum Feejee et in insulis Tonga (GrafTe). 



94. H. Futunaensis (Nanina) Mousson. •{• 



«T, imperforata, depresso-globulosa , tenuis, pellucida, 

 nitidissima, fusco-cornea. Spira convexa, regularis; summo 

 obtuso; sutura lenis, adnata, submarginata, Anfr. 5^2, fe^e 

 convexiusculi; ultiraus non descendens, valde rotundatus, supra 

 declivis, infra minys convexus, in centro impressus. Apertura 

 subverticalis (6*^ cum axi), lunato-circularis. Perist. rectum, 

 acutum , marginibus remotis; dextro magis, basali minus cur- 

 vatis; columellari de pariete, intus obiique duplicalo, ad finem 

 abscisso. — Alt. 3,2, diam. 4 miil. — Rat. anfr. 8:3. — Rat, 

 apert. 4 : 5.» (M.) 



•5* 



