A new Astraea from Bali, Indonesia (Mollusca, Prosobranchia, Turbinidae, Turbininae)

2006·1.2 MB·

by  A Alf

SPIXIANA
Fig.1. Astraea (Astralium)danieli,spec. nov. Holotype. a.Viewfromtop. b.Viewfrombase. c.Viewfromside.
Fig.2. Astraea (Astralium)semicostatum (Fischer, 1875). a.Viewfromtop. b.Viewfrombase. c.Viewfromside.
bluish white, the outer edge dark blue, sometimes Discussion
withbluegrowth Striae.
The only species which shows any similarity with
Distribution. Onlyknownfromthetypelocalityat Astraea (Astralium)danieli, spec. nov. isAstraea (As-
theisland ofBali, Indonesia, inshallowwater. tralium)semicostatum(Fischer,1875)whichhasmuch
stronger ribs and additional riblets between these,
a sharply angled periphery, a base with well ex-
pressedSpiralrowsofcrescentshapedlamellae,and
92
Fig.3. Astraea (Astralium)danieli,spec. nov. a. Basesofparatypes5 (left) and 7(right), inparatype5thetubercles
arewellvisible. b.Paratypes5and7,viewfromside.
which is larger at the average. Astraea (Astralium) References
stellare(Gmelin,1791)alsohasablueumbilicalarea
and operculum but is much larger (up to 50mm), Abbott, R. T. &S. P. Dance 1998. CompendiumofSea-
has an angulate periphery, a base with rows of shells (6* edition). -Dutton,NewYork
semilunularlamellaeandrelativelylargeraxialribs Dharma, B. 2005. Recent and Fossil Indonesian Shells.
whichgive thebasea star-likeappearance. Astraea -Conchbooks, Hackenheim
(Astralium) aureum (Jonas, 1844) has a yellowish Philippi,R.A. 1846. DieKreiselschneckenoderTrocho-
operculumandbaseand isrestricted toAustralia. ideen. -Bauerund Raspe, Nürnberg
Pilsbry,H.A. 1888.Phasianellidae,Turbinidae,Delphi-
nulinae. In: Tryon,G. W. & H. A. Pilsbry: Manual
ofConchology, vol. X. -Academy ofNaturalSci-
Acknowledgements
ences, Philadelphia
Reeve, L. A. 1862. Conchologia Iconica, vol. Xlll. -
WewanttothankJens&ChristaHemmen,Wiesbaden, Reeve, Benham & Reeve, London
for donating and loan of material. Thanks to Henk Sowerby, G. B. 1887. Thesaurus Conchyliorum, vol. V.
Dekker for discussion. All photographs by Uschi Da- -London
maschke,Möckmühl,Germany.
93