BLAUNRRIA. LEUCONIA. 
369 
3 . B. Leonardi Crosse, f 
„T. sinistrorsa, oblongo-ovata, tenuissima, laevigata, hya- 
lina; spira elongata, apice obtusulo; sutura leviter impressa; 
anfr. 6 plani, ultimus spiram subaequans; apertura subangusta, 
lanceolata; peristoma simplex, margine columellari brevi, sub- 
incrassato, basali et externo acutis; paries aperturalis prope 
columellam sat valide uniplicatus. — Long. 2 1 / 4 , diam. maj. 
vix 1 mill. 44 (C.) 
Blauneria Leonardi Crosse in Journ. Conch. XX. 1872. p. 71. 357. t. 16. f. 4. 
Habitat in vicinio civitatis Noumea Novae Caledoniae 
(Leonard). 
Obs. „ Species a B. pellucida Pfr. et gracili Pease bene distinguenda, 
multo minor et subovata, nec turrita.“ 
XII. Leuconia Gray. 
Pfr. Mon. Auric, p. 154; Auric. Brit. Mus. p. 117. — 
W. G. Binney Terr. Moll. Un. St. IV. 1859. p. 177; Land- 
and freshw. sh. North- Am. II. 1865. p. 78: genus Melampi- 
narum. — Patel Catal. 1873. p. 16. 115: genus Auriculeorum. 
Species. 
1. bidentata Mont. (Coll. 1.) I. 154. II. 117. — Patel Cat. p. 115. — 
Voluta bidentata et alba Mont. — Jaminia bidentata Leach. — Au- 
ricula bidentata et alba Flem., erosa Jeffr. — Conovulus bidentatus 
et albus Gray , bidens Gray. — Acteon bidentatus et Volvaria alba 
Flem. — Leuconia alba H. Sf A. Adams. — Britannia. 
2. Micheli (Auricula) Mittre. I. 156. II. 119. — Toulon Galliae. 
3. Bivonae (Auricula) Philippi. (Coll. 2.) I. 156. II. 119. — Patel 
Cat. p. 115. — Ovatella bidentata Biv. — Auricula myosotis p Phil. 
— Sicilia. 
4 . L. opportuna (Auricula) Gould, f 
„T. parva, ellipsoidea, solid a, livido-albida, laevis; anfr. 6 
ad suturam imbricato-appressis. Apertura falcata, postice acu- 
tissima, antice rotundata; labio lamella compressa elevata me- 
diana et lamella duplici anticali obliqua instructo; labro sim- 
plici. — Long. 8, diam. 4 mill. 44 (G.) 
Auricula opportuna (Leuconia) Gould in Proc. Bost. Soc. VII. Jul. 1859; 
Otia conch, p. 105. 
Habitat in insulis Loo Choo. 
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