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Olivella nana ( англиски )

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Olivella nana, common name the sparkling dwarf olive, is a species of small sea snail, marine gastropod mollusk in the subfamily Olivellinae, in the family Olividae, the olives. Species in the genus Olivella are commonly called dwarf olives.[3]

The shells of Olivella nana, harvested on Luanda Island, were used as currency called nzimbu in the Kingdom of Kongo, and were even traded north as far as the Kingdom of Benin.[4]

Taxonomy

Oliva nana Lamarck, 1811, described from the coast of Angola, was included in the genus Olivancillaria by Fischer (1887) and later cited by many authors in the same genus (e.g. Dautzenberg 1912, Odhner 1923, Nickles 1950, Klappenbach 1965, Burnay & Conceição 1983, etc.). However, the presence of an operculum excludes it from Olivancillaria. Abbott & Dance (1986) included it in Olivella, which appears to be a more accurate assignation.[3]

Description

The length of the shell varies between 10 mm and 20 mm. The color of the shell is dark, shining horn. There is some variation in the coloration in this species which changes from horn to white in some specimens at the point where the whorls of the protoconch and the teleoconch join. In some other specimens the change is continued on the first or second whorl of the teleoconch.

The apex is small, flattened, smooth and shining. This is the flattest apex in this genus. The apex consists of 11/2 carinated whorls that are rapidly enlarging. The carina appears on the first half of the first whorl and is very strong. The sutures of both the protoconch and the teleoconch are deeply channeled.[5]

Distribution

This species occurs in the Atlantic Ocean from Cape Verdes to West Africa and Angola; in the Indian Ocean off Madagascar.

References

  1. ^ Lamarck J.-B. (1811). Détermination des espéces de Mollusques testacés. Ann. Mus. Nat. Paris, vol. 16 page(s): 326, species 57.
  2. ^ Duclos, P.L. (1840) Histoire Naturelle Génerale et Particuliere de Tous les Genres de Coquilles Univalves Marines a l’état Vivant et Fossile, Publiée par Monographies, Genre Columbella. Didot, Paris, 1 p., 13 pls.. World Register of Marine Species, Retrieved 28 April 2010.
  3. ^ a b c Olivella nana (Lamarck, 1811). Retrieved through: World Register of Marine Species on 13 April 2012.
  4. ^ Jan Hogendorn and Marion Johnson, The Shell Money of the Slave Trade (Cambridge University Press, 1986), p. 19.
  5. ^ Modification of the apex in gastropod mollusks, Annals of the New York Academy of Sciences. v9., 1877; p. 689
  • Teso V. & Pastorino G. (2011) A revision of the genus Olivancillaria (Mollusca: Olividae) from the southwestern Atlantic. Zootaxa 2889: 1–34.

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Olivella nana: Brief Summary ( англиски )

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Olivella nana, common name the sparkling dwarf olive, is a species of small sea snail, marine gastropod mollusk in the subfamily Olivellinae, in the family Olividae, the olives. Species in the genus Olivella are commonly called dwarf olives.

The shells of Olivella nana, harvested on Luanda Island, were used as currency called nzimbu in the Kingdom of Kongo, and were even traded north as far as the Kingdom of Benin.

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Olivella nana ( шпански; кастиљски )

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Olivella nana es una especie de caracol de mar, un gastrópodo marino, molusco de la familia Olivellidae.[1]

Las conchas de Olivella nana fueron usadas en el Reino de Congo como moneda y recibían el nombre de "nzimbu", este tipo de conchas incluso eran comerciadas al norte en el Reino de Benín.[2]

Taxonomía

Oliva nana Lamarck, 1811, descrito de la costa de Angola, estuvo incluido en el género Olivancillaria por Fischer (1887) y más tarde, citado por muchos autores en el mismo género (p. ej. Dautzenberg 1912, Odhner 1923, Nickles 1950, Klappenbach 1965, Burnay & Conceição 1983, entre otros). Aun así, la presencia de un opérculo lo excluye de Olivancillaria.

Abbott & Dance (1986) lo incluyó en Olivella, la cual parece ser una asignación más exacta.[1]

Descripción

La longitud de la concha varía entre 10 mm y 20 mm. Tiene una forma cónica y un color oscuro y brillante. Existen algunas variaciones en la coloración de esta especie con algunas conchas de cuernos blancos en algunos especímenes, a tal punto que la espiral de la protoconcha y la teleconcha se unen. En algunos otros especímenes, el cambio de color continúa hasta la primera o segunda espiral de la teleconcha.

Tiene un ápice pequeño, plano, liso y brillante. Éste es el ápice más plano del género Olivella. El ápice consta de 1 1/2 espirales carenadas que se agrandan rápidamente. En la primera mitad de la primera espiral, aparece muy fuerte, la carina. Las suturas de la protoconcha y la teleconcha están profundamente encauzadas. [3]

Distribución

Esta especie de molusco se encuentra en el Océano Atlántico desde Cabo Verde hasta Angola y África del oeste; en el Océano Índico hasta Madagascar.

Referencias

  1. a b «Olivella nana». Registro Mundial de Especies Marinas (en inglés).
  2. Jan Hogendorn and Marion Johnson, The Shell Money of the Slave Trade (Cambridge University Press, 1986), p. 19.
  3. Modification of the apex in gastropod mollusks, Annals of the New York Academy of Sciences. v9., 1877; p. 689
  • Teso V. & Pastorino G. (2011) Una revisión del genus Olivancillaria (Mollusca: Olividae) del southwestern Atlántico. Zootaxa 2889: 1@–34.

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Olivella nana: Brief Summary ( шпански; кастиљски )

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Olivella nana es una especie de caracol de mar, un gastrópodo marino, molusco de la familia Olivellidae.​

Las conchas de Olivella nana fueron usadas en el Reino de Congo como moneda y recibían el nombre de "nzimbu", este tipo de conchas incluso eran comerciadas al norte en el Reino de Benín.​

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Olivella nana ( холандски; фламански )

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Olivella nana is een slakkensoort uit de familie van de Olividae.[1] De wetenschappelijke naam van de soort is voor het eerst geldig gepubliceerd in 1811 door Jean-Baptiste de Lamarck.

Bronnen, noten en/of referenties
  1. Bouchet, P. (2012). Olivella nana (Lamarck, 1811). Geraadpleegd via: World Register of Marine Species op http://www.marinespecies.org/aphia.php?p=taxdetails&id=224393
Geplaatst op:
09-03-2013
Dit artikel is een beginnetje over biologie. U wordt uitgenodigd om op bewerken te klikken om uw kennis aan dit artikel toe te voegen. Beginnetje
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Olivella nana ( виетнамски )

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Olivella nana là một loài ốc biển, là động vật thân mềm chân bụng sống ở biển trong họ Olividae, họ ốc gạo hoa.[3]

Miêu tả

Phân bố

Chú thích

  1. ^ Lamarck J.-B. (1811). Détermination des espéces de Mollusques testacés. Ann. Mus. Nat. Paris, vol. 16 page(s): Page 326, species 57.
  2. ^ Duclos, P.L. (1840) Histoire Naturelle Génerale et Particuliere de Tous les Genres de Coquilles Univalves Marines a l’état Vivant et Fossile, Publiée par Monographies, Genre Columbella. Didot, Paris, 1 p., 13 pls.. World Register of Marine Species, accessed ngày 28 tháng 4 năm 2010.
  3. ^ a ă Oliva zenopira Duclos, 1840. World Register of Marine Species, truy cập 28 tháng 4 năm 2010.

Tham khảo


Bài viết liên quan đến Olividae này vẫn còn sơ khai. Bạn có thể giúp Wikipedia bằng cách mở rộng nội dung để bài được hoàn chỉnh hơn.
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Olivella nana: Brief Summary ( виетнамски )

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Olivella nana là một loài ốc biển, là động vật thân mềm chân bụng sống ở biển trong họ Olividae, họ ốc gạo hoa.

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