204 HELIX 8. 100. 104. 
ripheriam acute carinato, carina compressa, serrata, subtus con- 
vexo, medio excavato; apertura obliqua, angulato-lunari; perist. 
simplici, marginibus remotis, dextro sinuato, obtuso, basali ar- 
cuato, calloso. — Diam. maj. 144, min. 13, alt. 8 mill.» (A.) 
Siylodonta. Bewsheri (Erepta) H. Adams in Proc. Zool. Soc. 
£879. p 49^ E 391: M8. 
Habitat «Basin du Diable» prope St. Denis insulae Bourbon. 
Obs. «Affinis H. semicerinae Mor., sed imperforata, sculptura etc. 
discrepans.» (— H. detecta Fér.: H. Adams in Proc. Zool. Soc. 1873. p. 209.) 
20176. Hi. Lalannei Gassies. | 
« Testa imperforata, conico-depressa, carinata, solidula, ob- 
lique irregulariter striata, nitidula, pallide lutea, ad carinam 
castaneo cingulata; spira vix elevata; anfr. 4!/,—5 parum con- 
vexi, regulariter acerescentes, ultimus non descendens, medio 
carinatus, basi subplanatus, nitidior; apice nitido; apertura 
parum obliqua, lunato-rotundata, intus albo-cingulata; peristoma 
simplex, rectum, marginibus subconvergentibus, dextro simplice, 
columellari subinerassato. — Diam. maj. 8!/, min. 7!5, alt. 
5 mill.» (G.) 
Helir Lalannei Gass. in Journ. Conch. XVII. 1869. p. 71. 
Mabitat in insula Art, Balade Novae Caledoniae (Montrouzier et 
Magen). 
* 
2011. obserata Love. (Coll. 849.) III. 169. IV. 193. V. 265. — Acti- 
nella Paiva Mader. p. 36. —  Pütel Cat. p. 93. — Madera. 
8. 104. 
2018. virgo Brod. (Coll. 850.) I. 217. IIl. 464. IV. 193. V. 265. — 
Cochlostyla. virgo (Corasia) Pütel Cat. p. 98. — Ins. Philippin. 
2019. papyracea Brod. (Coll.851.) I. 218. III. 169. IV. 193. V. 265. 
— Ins. Philippin. 
2080. H. digna Mousson. 
«T. obtecte perforata, robusta, depresso-conica, arcuaum 
ruditer plicato-costulata, minutissime aspera, epid. et colore de- 
stituta. Spira depresso-conica, regularis; summo obtuso, albo; 
sutura plana, supra arcte submarginata. Anfr. 4!/5, subceleriter 
accrescentes, primi convexiusculi, laevigati; sequentes plani, 
plicati; ultimus major, subito descendens, subdilatatus, conve- 
xiusculus, carina vix undulata cireumdatus, subtus convexior, 
subinflatus, minus striatus. Apertura perobliqua (509 cum axi), 
transverse angulato-ovalis. Perist. subacutum, intus tenuiter 
