Abra is a
genus
Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus com ...
of saltwater clams,
marine
Marine is an adjective meaning of or pertaining to the sea or ocean.
Marine or marines may refer to:
Ocean
* Maritime (disambiguation)
* Marine art
* Marine biology
* Marine debris
* Marine habitats
* Marine life
* Marine pollution
Military
* ...
bivalve
Bivalvia (), in previous centuries referred to as the Lamellibranchiata and Pelecypoda, is a class of marine and freshwater molluscs that have laterally compressed bodies enclosed by a shell consisting of two hinged parts. As a group, bival ...
mollusk
Mollusca is the second-largest phylum of invertebrate animals after the Arthropoda, the members of which are known as molluscs or mollusks (). Around 85,000 extant species of molluscs are recognized. The number of fossil species is e ...
s in the
family
Family (from la, familia) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its ...
Semelidae
The Semelidae are a family of saltwater clams, marine bivalve molluscs in the order Cardiida.
Description
Members of this family have rounded or oval, elongated shells, much flattened. The two valves are connected by an internal ligament in c ...
. Members of this genus are mostly under 1.5 centimeters long, and have thin shells which are usually white. These bivalves normally live under the surface of sandy and muddy sediments, in the
neritic zone
The neritic zone (or sublittoral zone) is the relatively shallow part of the ocean above the drop-off of the continental shelf, approximately in depth.
From the point of view of marine biology it forms a relatively stable and well-illuminated ...
.
They are considered an important food source for flat fish.
[Rees, H.L. and Dare. P.J (1993)Sources of mortality and associated life-cycle traits of selected benthic species: a review. Fisheries Research Data Report No. 33, Directorate of Fisheries Research, Lowestoft.]
Species
Species within the genus ''Abra'' include:
*''
Abra aequalis''
(Say
Say may refer to:
Music
*''Say'' (album), 2008 album by J-pop singer Misono
* "Say" (John Mayer song), 2007
*"Say (All I Need)", 2007 song by American pop rock band OneRepublic
* "Say" (Method Man song), 2006 single by rapper Method Man
* "Say" ( ...
, 1822)
*''
Abra alba
''Abra alba'', or the white furrow shell, is a species of bivalve mollusc in the Family (biology), family Semelidae. It occurs in the northeastern Atlantic Ocean and the Mediterranean Sea, where it lives on the floor in shallow areas buried in so ...
''
(Wood W., 1802)
*''
Abra californica
Abra may refer to:
Places
* Abra, Burkina Faso
* Abra, Ivory Coast
* Abra (province), a province of the Philippines
** Abra's at-large congressional district
** Legislative district of Abra
* Abra de Ilog, a municipality of Occidental Mindoro ...
''
Kundsen, 1970
*''
Abra lioica
Abra may refer to:
Places
* Abra, Burkina Faso
* Abra, Ivory Coast
* Abra (province), a province of the Philippines
** Abra's at-large congressional district
** Legislative district of Abra
* Abra de Ilog, a municipality of Occidental Mindo ...
''
( Dall, 1881)
*''
Abra longicallis
Abra may refer to:
Places
* Abra, Burkina Faso
* Abra, Ivory Coast
* Abra (province), a province of the Philippines
** Abra's at-large congressional district
** Legislative district of Abra
* Abra de Ilog, a municipality of Occidental Mindoro ...
''
Sacchi, 1836
*''
Abra nitida
Abra may refer to:
Places
* Abra, Burkina Faso
* Abra, Ivory Coast
* Abra (province), a province of the Philippines
** Abra's at-large congressional district
** Legislative district of Abra
* Abra de Ilog, a municipality of Occidental Mindoro ...
''
(O. F. Mueller, 1776)
*''
Abra pacifica
Abra may refer to:
Places
* Abra, Burkina Faso
* Abra, Ivory Coast
* Abra (province), a province of the Philippines
** Abra's at-large congressional district
** Legislative district of Abra
* Abra de Ilog, a municipality of Occidental Mindoro ...
''
Dall, 1915
*''
Abra prismatica
''Abra prismatica'' is a species of bivalve mollusc in the family Semelidae. It occurs in the northeastern Atlantic Ocean, the North Sea and the Mediterranean Sea, where it lives on the seabed, in shallow areas buried in soft sediment.
Descripti ...
''
*''
Abra profundorum
Abra may refer to:
Places
* Abra, Burkina Faso
* Abra, Ivory Coast
* Abra (province), a province of the Philippines
** Abra's at-large congressional district
** Legislative district of Abra
* Abra de Ilog, a municipality of Occidental Mindoro ...
''
E. A. Smith, 1885
*''
Abra segmentum
Abra may refer to:
Places
* Abra, Burkina Faso
* Abra, Ivory Coast
* Abra (province), a province of the Philippines
** Abra's at-large congressional district
** Legislative district of Abra
* Abra de Ilog, a municipality of Occidental Mindoro ...
''
(Récluz, 1843)
*''
Abra tenuis''
(Montagu, 1818)
*''
Abra tepocana''
Dall, 1915
References
*
Semelidae
Bivalve genera
{{bivalve-stub