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Joellina

Bivalvia - Lucinida - Lucinidae

Taxonomy
Joellina was named by von Cosel (2006) [DISTRIBUTION: Recent; West Africa.]. It is extant. Its type is Joellina dosiniformis.

It was assigned to Lucinidae by von Cosel (2006).

Synonymy list
YearName and author
2006Joellina von Cosel p. 842

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
Spiralia
Schizocoela
phylumMollusca
classBivalvia
Eubivalvia
RankNameAuthor
subclassAutobranchia(Groblen 1894)
infraclassHeteroconchia(Cox 1960)
CardiomorphiFerussac 1822
CardioniFerussac 1822
LucinidiaGray 1854
orderLucinida(Stoliczka 1871)
superfamilyLucinoideaFleming 1828
familyLucinidaeFleming 1828
genusJoellina

If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.

Diagnosis
ReferenceDiagnosis
R. von Cosel 2006Shells medium-sized, subcircular, slightly oblique towards posterior, hardly longer than high to almost as long as high, compressed, with a rather short and broad anterior part and a high, broad and oblique posterior part, without indentation. Anterior margin rounded and in its upper part slightly indented. Beaks well in front of the vertical midline. umbones slightly prominent. Surface with irregular commarginal lamellae and growth lines. Antero-dorsal depression short and pronounced, postero-dorsal depression broad and ill-defined. Lunule very short, narrow, asymmetrical and deeply sunken, escutcheon very narrow and completely filled by the ligament. Hinge plate very broad with long posterior part, with one very small and vestigial cardinal in the right valve and socket in the left valve; laterals small to indistinct. Ligament short and broad. Diverging part of anterior adductor scar long and broad, with a length of about 2/3 the total length of the scar. Inner margins smooth.
Measurements
No measurements are available
Composition: aragonitef
Locomotion: facultatively mobilef
Life habit: deep infaunalf
Diet: chemosymbioticf
Vision: blindc
Created: 2009-05-17 03:07:50
Modified: 2009-10-09 08:44:03
Source: f = family, c = class
References: Kiessling 2004, Aberhan et al. 2004
Collections
No collection or age range data are available