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10 TIAHIDJ!.
Genus TIARA.
Tiara, Bolten, 1798, Mus. Bolten.
Melania, Lamarck, 1799 et auet.
Turritella, Link, non Jjamarck.
JEUistoma, Rafinesque.
Melanites, Krugel.
Hygronoma, Gistel.
TrPE, Helix amarula, Linn.: Mauritius ; Madagascar; Comoro
Islands.
Range. Tropical Islands of the Indian Ocean and Moluccas.
Shell ovate ; spire and aperture of nearly equal length ; whorls
coronated with spines or tubercles ; aperture ovate, entire in front,
pointed behind ; inner lip very thin ; outer lip simple, acute.
19. Tiara cybele {Gould).
Tiara cyhele (Gould;, Proc. Boston See. Nat. Hist, ii, 1847, p. 222 (as
Melania cybele).
Melania crenularis, Beshayes, Mag, Zool. 1884, pi. 83; Nevill, Hand
List, pt. 2, p. 279.
Original description:—Testa ovata, turrita, crassa, fuliginosa,
ftpidermide velutina induta; spira ad apicem valde erosa, anfr.
superstit. ad 3 planulatis, superne tribulatis, et pinnis curtis acutis
arrectis ordinatim dispositis coronatis; apertura angusta, elongatoovalis,
postice angulata; intus livida.
Alt. 25, diam. 15'5 mm.
Hah. Piji, Navigators' Islands, etc.
Var. amara {March), J. de Conch. 1872, p. 319, as Melania
amara, for Jf. mitra, Keeve (not of Meuschen), Con. Icon. sp. 175.
Original description :—Shell ovate, ventricose, black-brown,
sometimes covered with a soft epidermis; whorls few, smooth,
sharply concavely angled at the upper part, prickly-tubercled at
the angle; aperture obliquely ovate; columella callously effused,
interior sometimes blood-stained.
Alt. 47, diam. 24-5 mm. (fig. 6 in Conch. Icon.).
Hah. Sumatra (Cummr/) ; Pulo Panjang (iforc/i) ; Great Nicobar
{Boepstorff).
Melania, Lamarck, being an absolute synonym of Tiara, Bolten,
and as none of the names used in the genus appear to bo
applicable, the author proposes the subgeneric name Badina for
the following group.
Subgenus EADINA, nov.
Melania, TL. & S. Adams, 1856 ; Brot, 1874.
TYPE, Melania hastula, Lea; PhiHppiues; Fiji; Ilalmaheira;
Aru Islands.