Boonea impressa

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Boonea impressa
Boonea impressa 001.png
Drawing of a shell of Boonea impressa
Scientific classification
Kingdom:
Animalia
Phylum:
Mollusca
Class:
Gastropoda
(unranked):
clade Heterobranchia
clade Euthyneura
clade Panpulmonata
Superfamily:
Pyramidelloidea
Family:
Pyramidellidae
Genus:
Boonea
Species:
B. impressa
Binomial name
Boonea impressa
(Say, 1822) [1]
Synonyms [2]
  • Chrysallida cookei Bartsch, 1955
  • Chrysallida dalli Bartsch, 1955
  • Chrysallida gardnerae Bartsch, 1955
  • Chrysallida palmerae Bartsch, 1955
  • Chrysallida weberi Bartsch, 1955
  • Menestho beauforti Jacot, A.P., 1921
  • Menestho impressa (Say, 1822)
  • Monoptygma impressa (Say, 1822)
  • Odostomia beauforti Jacot, 1921
  • Odostomia (Boonea) impressa(Say, 1822)
  • Odostomia impressa (Say, 1822)
  • Turritella impressa Say, 1822 (basionym)

Boonea impressa, common name the impressed odostome, is a species of sea snail, a marine gastropod mollusk in the family Pyramidellidae, the pyrams and their allies. The species is one of twelve known species within the Boonea genus of gastropods. [2] [3]

In biology, a species ( ) is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can produce fertile offspring, typically by sexual reproduction. Other ways of defining species include their karyotype, DNA sequence, morphology, behaviour or ecological niche. In addition, paleontologists use the concept of the chronospecies since fossil reproduction cannot be examined. While these definitions may seem adequate, when looked at more closely they represent problematic species concepts. For example, the boundaries between closely related species become unclear with hybridisation, in a species complex of hundreds of similar microspecies, and in a ring species. Also, among organisms that reproduce only asexually, the concept of a reproductive species breaks down, and each clone is potentially a microspecies.

Sea snail common name for snails that normally live in saltwater

Sea snail is a common name for snails that normally live in salt water, in other words marine gastropods. The taxonomic class Gastropoda also includes snails that live in other habitats, such as land snails and freshwater snails. Many species of sea snails are edible and exploited as food sources by humans.

Family is one of the eight major hierarcical taxonomic ranks in Linnaean taxonomy; it is classified between order and genus. A family may be divided into subfamilies, which are intermediate ranks between the ranks of family and genus. The official family names are Latin in origin; however, popular names are often used: for example, walnut trees and hickory trees belong to the family Juglandaceae, but that family is commonly referred to as being the "walnut family".

Contents

The preferred host of this ectoparasite is the eastern oyster Crassostrea virginica [4]

Description

The thick shell is opaque The shell grows to a length of 6.7 mm. The teleoconch contains seven flat whorls with a deep suture. The body whorl has 15 revolving lines, the upper ones more distant, about four lines on the next whorl, the number of lines diminishing on the upper whorls. The columellar tooth is distinct. [5]

Whorl (mollusc)

A whorl is a single, complete 360° revolution or turn in the spiral growth of a mollusc shell. A spiral configuration of the shell is found in of numerous gastropods, but it is also found in shelled cephalopods including Nautilus, Spirula and the large extinct subclass of cephalopods known as the ammonites.

In anatomy, a suture is a fairly rigid joint between two or more hard elements of an organism, with or without significant overlap of the elements.

Body whorl

The body whorl is part of the morphology of the shell in those gastropod mollusks that possess a coiled shell. The term is also sometimes used in a similar way to describe the shell of a cephalopod mollusk.

Distribution

This species occurs in the following locations: [2]

Caribbean Sea A sea of the Atlantic Ocean bounded by North, Central, and South America

The Caribbean Sea is a sea of the Atlantic Ocean in the tropics of the Western Hemisphere. It is bounded by Mexico and Central America to the west and south west, to the north by the Greater Antilles starting with Cuba, to the east by the Lesser Antilles, and to the south by the north coast of South America.

Gulf of Mexico An Atlantic Ocean basin extending into southern North America

The Gulf of Mexico is an ocean basin and a marginal sea of the Atlantic Ocean, largely surrounded by the North American continent. It is bounded on the northeast, north and northwest by the Gulf Coast of the United States, on the southwest and south by Mexico, and on the southeast by Cuba. The U.S. states of Texas, Louisiana, Mississippi, Alabama, and Florida border the Gulf on the north, which are often referred to as the "Third Coast", in comparison with the U.S. Atlantic and Pacific coasts.

Louisiana State of the United States of America

Louisiana is a state in the Deep South region of the South Central United States. It is the 31st most extensive and the 25th most populous of the 50 United States. Louisiana is bordered by the state of Texas to the west, Arkansas to the north, Mississippi to the east, and the Gulf of Mexico to the south. A large part of its eastern boundary is demarcated by the Mississippi River. Louisiana is the only U.S. state with political subdivisions termed parishes, which are equivalent to counties. The state's capital is Baton Rouge, and its largest city is New Orleans.

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References

  1. ↑ Say, T. 1822. An account of some of the marine shells of the United States. Journal of the Academy of Natural Sciences of Philadelphia 2: 221-248, 257-276, 302-325
  2. 1 2 3 Bouchet, P. (2011). Boonea impressa (Say, 1822). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=420437 on 2011-10-26
  3. ↑ Rosenberg, G., F. Moretzsohn, and E. F. García. 2009. Gastropoda (Mollusca) of the Gulf of Mexico, Pp. 579–699 in Felder, D.L. and D.K. Camp (eds.), Gulf of Mexico–Origins, Waters, and Biota. Biodiversity. Texas A&M Press, College Station, Texas.
  4. ↑ Robert Robertson and Terry Mau-Lastovicka, The Eectoparasitism of Boonea and Fargoa (Gastropoda: Pyramidellidae); Biol Bull157: 320-333. (October 1979)
  5. ↑ G.W. Tryon, Manual of Conchology vol. VIII p. 356; 1886 (described as Odostomia bisuturalis)
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