Divaricella quadrisulcata

Divaricella quadrisulcata
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Bivalvia
Order:	Lucinida
Superfamily:	Lucinoidea
Family:	Lucinidae
Genus:	Divaricella
Species:	D. quadrisulcata
Binomial name
	Divaricella quadrisulcata; (Orbigny, 1842)

Last updated May 08, 2023

Divaricella quadrisulcata, or the cross-hatched lucine, is a species of marine bivalve mollusc in the family Lucinidae.^[1]D. quadrisulcata, also known as Divalinga quadrisulcata, are known for their unique shell patterns.^[2]^[3] The shells of D. quadrisulcata have been used as jewelry and can be collected along the shore in many Atlantic coastal states in North America. These organisms are known to have a symbiotic relationship with sulfur-oxidizing bacteria, as is characteristic of many other organisms within the family Lucinidae.^[4]

Form and Function

Anatomy

D. quadrisulcata belongs to the family Lucinidae. Lucinidae are known for their round, white shells.^[2] These shells are thick and often spherical-shaped.^[2] Members of the Lucinidae family often have concentric ridges that run parallel to the growth patterns of the shell. D. quadrisulcata are unique among the Lucinidae in that the concentric ridges on their shells are not parallel with growth patterns.^[2] Rather, the ridges on D. quadrisulcata shells grow at a 45° angle in comparison with growth patterns.^[2]

Because D. quadrisulcata are a species of bivalve mollusc, they have two halves of a shell. These two halves are connected by a hinge that is located on the dorsal side of the mollusc.^[5] These organisms, like all bivalves, also have a mantle, a style, gills, two adductor muscles, a digestive tract, gonads, and a foot for movement.^[5]

Feeding and Digestion

The mantle is an organ that covers most of the body of D. quadrisulcata. This tissue helps not only with the formation of the shell and hinge, but also with the production of siphons for the inflow and outflow of water. When water flows through the inflow siphon, also known as the inhalent siphon, it passes through the gills on its way out through the outflow siphon, also known as the exhalent siphon.^[4] The gills of the D. quadrisulcata capture pieces of organic matter in that water and sends the matter to the style. The organic matter can then get trapped by mucus in the style of the mollusc.^[2]

The digestive tract consists of an esophagus, a stomach, and a mid-gut.^[6] The short esophagus moves food from the gills to the stomach through the cilia lining its walls.^[6] Within the stomach, a crystalline structure called the style helps to capture the food and move it farther into the digestive tract. The style uses mucus to capture the food, and, through ciliary action, helps to move food throughout the stomach.^[6] The stomach is also aided in the process of digestion by glands called digestive diverticula. These glands contain enzymes that help to break down the organic matter trapped in the style.^[4] The next portion of the digestive tract is the mid-gut, also known as the intestine. Unlike other members of the family Lucinidae, the mid-gut of D. quadrisulcata has a large typhlosolis—a fold in the membrane. This fold, located on the dorsal side of the organism, is indicative of an active digestive system.^[4] Lastly, waste from the digestive system is excreted from the body after passing through the rectum.^[6]

Movement

The foot of the D. quadrisulcata is the organ used for movement. This structure consists of a long, worm-shaped tissue (also known as vermiform), a tissue called the heel, and a distinct bulb-shaped end.^[2] The heel of the organism is often used for movement and digging, and the worm-shaped part of the foot is used to form a tube that extends to the surface. This tube is the buried organism’s way of exchanging gas with the water above. To reach the surface, as well as to help extend the heel when burrowing, the worm-shaped part of the foot can stretch up to six times the length of the D. quadrisulcata shell.^[2]

Distribution

Found along the Atlantic coast of North America,
ranging from Massachusetts to the West Indies.^[1]

Habitat

Divaricella quadrisulcata are often found in large sandy areas that seem to have a lack of other animals present.^[2] The D. quadrisulcata organisms can be found in shallow water and are known to live near the Thalassia plant. These bivalves are known to bury themselves within the sand, often by burrowing straight down.^[7] Other species that are often found in the same area are Codakia orbiculata and Lucina pennsylvanica .^[2]D. quadrisulcata are found in sandy, shallow areas, often providing a food source for Naticidae moon snails. D. quadrisulcata are also parasitized by a species called Myocheres Inflata (Allen, 1956). The M. inflata, a cyclopoid copepod, lives in the mantle cavity of the D. quadrisulcata and can be found in the Bahamas.^[8]

Related Research Articles

The gastrointestinal tract is the tract or passageway of the digestive system that leads from the mouth to the anus. The GI tract contains all the major organs of the digestive system, in humans and other animals, including the esophagus, stomach, and intestines. Food taken in through the mouth is digested to extract nutrients and absorb energy, and the waste expelled at the anus as feces. Gastrointestinal is an adjective meaning of or pertaining to the stomach and intestines.

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, bivalves have no head and they lack some usual molluscan organs, like the radula and the odontophore. The class includes the clams, oysters, cockles, mussels, scallops, and numerous other families that live in saltwater, as well as a number of families that live in freshwater. The majority are filter feeders. The gills have evolved into ctenidia, specialised organs for feeding and breathing. Most bivalves bury themselves in sediment, where they are relatively safe from predation. Others lie on the sea floor or attach themselves to rocks or other hard surfaces. Some bivalves, such as the scallops and file shells, can swim. The shipworms bore into wood, clay, or stone and live inside these substances.

A siphon is an anatomical structure which is part of the body of aquatic molluscs in three classes: Gastropoda, Bivalvia and Cephalopoda.

The mantle is a significant part of the anatomy of molluscs: it is the dorsal body wall which covers the visceral mass and usually protrudes in the form of flaps well beyond the visceral mass itself.

The tusk shells or tooth shells, technically the Scaphopoda, are members of a class of shelled marine mollusc with worldwide distribution, and are the only class of exclusively infaunal marine molluscs. Shells of species within this class range from about 0.5 to 18 cm in length. Members of the order Dentaliida tend to be larger than those of the order Gadilida.

A molluscivore is a carnivorous animal that specialises in feeding on molluscs such as gastropods, bivalves, brachiopods and cephalopods. Known molluscivores include numerous predatory molluscs,, arthropods such as crabs and firefly larvae, and, vertebrates such as fish, birds and mammals. Molluscivory is performed in a variety ways with some animals highly adapted to this method of feeding behaviour. A similar behaviour, durophagy, describes the feeding of animals that consume hard-shelled or exoskeleton bearing organisms, such as corals, shelled molluscs, or crabs.

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The siphonal canal is an anatomical feature of the shells of certain groups of sea snails within the clade Neogastropoda. Some sea marine gastropods have a soft tubular anterior extension of the mantle called a siphon through which water is drawn into the mantle cavity and over the gill and which serves as a chemoreceptor to locate food. Siphonal canals allow for active transport of water to sensory organs inside the shell. Organisms without siphonal canals in their shells rely on passive or diffuse transport or water into their shell. Those with siphonal canals have a direct inhalant stream of water that interacts with sensory organs to detect concentration and direction of a stimulus, such as food or mates. In certain groups of carnivorous snails, where the siphon is particularly long, the structure of the shell has been modified in order to house and protect the soft structure of the siphon. Thus the siphonal canal is a semi-tubular extension of the aperture of the shell through which the siphon is extended when the animal is active.

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Anodontia alba, or the buttercup lucine, is a species of bivalve mollusc in the family Lucinidae. It can be found along the Atlantic coast of North America, its range extending from North Carolina in the United States to the West Indies.

Codakia orbicularis, or the tiger lucine, is a species of bivalve mollusc in the family Lucinidae. It can be found along the Atlantic coast of North America, ranging from Florida to the West Indies.

Ctena orbiculata, commonly known as the dwarf tiger lucine, is a species of bivalve mollusc in the family Lucinidae. It can be found along the Atlantic coast of North America, ranging from North Carolina to the West Indies.

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Solecurtus strigilatus, also known as the rosy razor clam, is a species of saltwater clam, a marine bivalve mollusc in the family Solecurtidae. This mollusc is a suspension feeder and can burrow with great rapidity to escape predators. It is an unusual bivalve in that its shell valves are too small to contain all the soft tissue, and the animal is unable to retreat into its shell.

References

1 2 Abbott, R.T. & Morris, P.A. A Field Guide to Shells: Atlantic and Gulf Coasts and the West Indies. New York: Houghton Mifflin, 1995. 53.
1 2 3 4 5 6 7 8 9 10 Allen, J. A. (1958). "On the Basic Form and Adaptations to Habitat in the Lucinacea (Eulamellibranchia)". Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences. 241 (684): 421–484. ISSN 0080-4622.
↑ Ferguson, Chad Allen; Miller, Arnold I. (October 2007). "A sea change in Smuggler's Cove? Detection of decadal-scale compositional transitions in the subfossil record". Palaeogeography, Palaeoclimatology, Palaeoecology. 254 (3–4): 418–429. doi:10.1016/j.palaeo.2007.06.021. ISSN 0031-0182.
1 2 3 4 Brissac, Terry; Merçot, Hervé; Gros, Olivier (2010-11-22). "Lucinidae/sulfur-oxidizing bacteria: ancestral heritage or opportunistic association? Further insights from the Bohol Sea (the Philippines)". FEMS Microbiology Ecology. 75 (1): 63–76. doi:10.1111/j.1574-6941.2010.00989.x. ISSN 0168-6496.
1 2 Souto, Francisco José Bezerra; Sampaio, Ketlen Dos Santos (2020-03-20). "CONFLITOS SOCIOAMBIENTAIS NA COMUNIDADE PESQUEIRA DE BOM JESUS DOS POBRES (SAUBARA-BA): UMA ABORDAGEM ETNOECOLÓGICA ABRANGENTE". Ethnoscientia. 5 (1). doi:10.22276/ethnoscientia.v5i1.266. ISSN 2448-1998.
1 2 3 4 Lobo-da-Cunha, Alexandre (2019-09-01). "Structure and function of the digestive system in molluscs". Cell and Tissue Research. 377 (3): 475–503. doi:10.1007/s00441-019-03085-9. ISSN 1432-0878.
↑ Stanley, Steven M. (1969-10-31). "Bivalve Mollusk Burrowing Aided by Discordant Shell Ornamentation". Science. 166 (3905): 634–635. doi:10.1126/science.166.3905.634. ISSN 0036-8075.
↑ Allen, J. A. (February 1956). "Myocheres inflata a New Species of Parasitic Copepod from the Bahamas". The Journal of Parasitology. 42 (1): 60. doi:10.2307/3274624. ISSN 0022-3395.

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[Abbott,_R.T._1995-1] 1 2 Abbott, R.T. & Morris, P.A. A Field Guide to Shells: Atlantic and Gulf Coasts and the West Indies. New York: Houghton Mifflin, 1995. 53.

[:0-2] 1 2 3 4 5 6 7 8 9 10 Allen, J. A. (1958). "On the Basic Form and Adaptations to Habitat in the Lucinacea (Eulamellibranchia)". Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences. 241 (684): 421–484. ISSN 0080-4622.

[3] Ferguson, Chad Allen; Miller, Arnold I. (October 2007). "A sea change in Smuggler's Cove? Detection of decadal-scale compositional transitions in the subfossil record". Palaeogeography, Palaeoclimatology, Palaeoecology. 254 (3–4): 418–429. doi:10.1016/j.palaeo.2007.06.021. ISSN 0031-0182.

[:1-4] 1 2 3 4 Brissac, Terry; Merçot, Hervé; Gros, Olivier (2010-11-22). "Lucinidae/sulfur-oxidizing bacteria: ancestral heritage or opportunistic association? Further insights from the Bohol Sea (the Philippines)". FEMS Microbiology Ecology. 75 (1): 63–76. doi:10.1111/j.1574-6941.2010.00989.x. ISSN 0168-6496.

[:2-5] 1 2 Souto, Francisco José Bezerra; Sampaio, Ketlen Dos Santos (2020-03-20). "CONFLITOS SOCIOAMBIENTAIS NA COMUNIDADE PESQUEIRA DE BOM JESUS DOS POBRES (SAUBARA-BA): UMA ABORDAGEM ETNOECOLÓGICA ABRANGENTE". Ethnoscientia. 5 (1). doi:10.22276/ethnoscientia.v5i1.266. ISSN 2448-1998.

[:3-6] 1 2 3 4 Lobo-da-Cunha, Alexandre (2019-09-01). "Structure and function of the digestive system in molluscs". Cell and Tissue Research. 377 (3): 475–503. doi:10.1007/s00441-019-03085-9. ISSN 1432-0878.

[7] Stanley, Steven M. (1969-10-31). "Bivalve Mollusk Burrowing Aided by Discordant Shell Ornamentation". Science. 166 (3905): 634–635. doi:10.1126/science.166.3905.634. ISSN 0036-8075.

[8] Allen, J. A. (February 1956). "Myocheres inflata a New Species of Parasitic Copepod from the Bahamas". The Journal of Parasitology. 42 (1): 60. doi:10.2307/3274624. ISSN 0022-3395.

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