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Image of Pyrgulopsis nevadensis (Stearns 1883)
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Pyrgulopsis Call & Pilsbry 1886

Pyrgulopsis

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Pyrgulopsis is a genus of freshwater snails with a gill and an operculum, aquatic gastropod mollusks in the family Hydrobiidae.

Etymology

The name Pyrgulopsis is composed from Pyrgula, another genus of snail, and opsis = aspect of.[1]

Description

Generic characters of the genus Pyrgulopsis are: the shell is minute, conically turreted, somewhat elongated, imperforate and unicarinate. The apex is acute. The aperture is ovate. The edge of the aperture, called the peritreme, is continuous.[1] The operculum is ovate, thin, corneous and spiral, with polar point well forward and approximating the columella.[1]

The jaw is thin and membranaceous.[1] The radula is odontophore, with teeth are arranged in transverse rows, according to the formula 3 + 1 + 3. Formula for denticles of rhachidian: 4 + 1 + 41 + 1.[1]

Distribution

The distribution of the genus Pyrgulopsis includes Western and South-western United States.[1] Snails of species in the genus Pyrgulopsis occur in fresh water and in brackish water.[1]

Species

Pyrgulopsis is the largest genus of freshwater gastropods in the North America. In 2014, 139 species were recognized in this genus.[4]

Species in the genus Pyrgulopsis include:[5]

Eastern North American species of Pyrgulopsis[20] are considered to be in separate genus Marstonia according to the Thompson and Hershler (2002).[21]

References

This article incorporates public domain text from the reference.[1]

  1. ^ a b c d e f g h i Call R. E. & Pilsbry H. A. (1886). "On Pyrgulopsis, a new genus of rissoid mollusk, with description of two new forms". Proceeding Davenport Academy of Natural Sciences V.: 9-14.
  2. ^ a b c Hershler R. Liu H.-P. (25 January 2010). "Two new, possibly threatened species of Pyrgulopsis (Gastropoda: Hydrobiidae) from southwestern California". Zootaxa 2343: 1–17, 8 plates. preview
  3. ^ a b c Hershler, R.; Liu, H.-P.; Lang, B. K. (2010). "Transfer of Cochliopa texana to Pyrgulopsis (Hydrobiidae) and description of a third congener from the lower Pecos River basin". Journal of Molluscan Studies. 76 (3): 245–256. doi:10.1093/mollus/eyq002.
  4. ^ a b c Hershler, Robert; Ratcliffe, Victoria; Liu, Hsiu-Ping; Land, Brian; Hay, Claire (July 2014). "Taxonomic revision of the Pyrgulopsis gilae (Caenogastropoda, Hydrobiidae) species complex, with descriptions of two new species from the Gila River basin, New Mexico". ZooKeys (429): 69–85. doi:10.3897/zookeys.429.7865. PMC 4137299. PMID 25147471.
  5. ^ Pyrgulopsis, Integrated Taxonomic Information System, accessed 24 July 2009.
  6. ^ "Pyrgulopsis anguina". Utah Division of Wildlife Resources. Archived from the original on December 30, 2016. Retrieved May 18, 2017.
  7. ^ Hershler, R.; Gustafson, D. L. (2001). "First record for springsnails (Mollusca: Hydrobiidae: Pyrgulopsis) from the northern Rocky Mountains". Proceedings of the Biological Society of Washington. 114: 297–308.
  8. ^ Hershler, Robert; Liu, Hsiu-Ping; Gustafson, Daniel L. (November 2008). "A second species of Pyrgulopsis (Hydrobiidae) from the Missouri River basin, with molecular evidence supporting faunal origin through Pliocene stream capture across the northern continental divide". Journal of Molluscan Studies. 74 (4): 403–413. doi:10.1093/mollus/eyn028. – via EBSCO's Academic Search Complete (subscription required)
  9. ^ "Pyrgulopsis chamberlini". Utah Division of Wildlife Resources. Archived from the original on December 30, 2016. Retrieved May 19, 2017.
  10. ^ Hershler (1998). "A systematic review of the hydrobiid snails (Gastropoda: Rissooidea) of the Great Basin, western United States. Part I. Genus Pyrgulopsis". The Veliger. California Malacozoological Society, Inc. 41: 1–132. hdl:10088/7293.
  11. ^ "Spring Mountains Pyrg". Encyclopedia of Life. Retrieved 27 June 2017.
  12. ^ "Pyrgulopsis fusca". Utah Division of Wildlife Resources. Archived from the original on December 30, 2016. Retrieved May 18, 2017.
  13. ^ "Pyrgulopsis hamlinensis". Utah Division of Wildlife Resources. Archived from the original on December 30, 2016. Retrieved May 18, 2017.
  14. ^ a b c Hershler, Robert; Liu, Hsiu-Ping; Bradford, Corbin (9 September 2013). "Systematics of a widely distributed western North American springsnail, Pyrgulopsis micrococcus (Caenogastropoda, Hydrobiidae), with descriptions of three new congeners". ZooKeys (330): 27–52. doi:10.3897/zookeys.330.5852. PMC 3800804. PMID 24146554. Retrieved June 21, 2017. – via EBSCO's Academic Search Complete (subscription required)
  15. ^ "Pyrgulopsis nonaria". Utah Division of Wildlife Resources. Archived from the original on December 30, 2016. Retrieved May 18, 2017.
  16. ^ "Pyrgulopsis saxatilis". Utah Division of Wildlife Resources. Archived from the original on December 31, 2016. Retrieved May 19, 2017.
  17. ^ "Pyrgulopsis transversa". Utah Division of Wildlife Resources. Archived from the original on December 30, 2016. Retrieved May 19, 2017.
  18. ^ "Southeast Nevada Pyrg". Encyclopedia of Life. Retrieved 27 June 2017.
  19. ^ "Pyrgulopsis variegata". Utah Division of Wildlife Resources. Archived from the original on December 30, 2016. Retrieved May 18, 2017.
  20. ^ Hershler, R (1994). "A review of the North American freshwater snail genus Pyrgulopsis (Hydrobiidae)" (PDF). Smithsonian Contributions to Zoology. 554 (554): 1–115. doi:10.5479/si.00810282.554.
  21. ^ Marstonia http://www.natureserve.org accessed 25 July 2009. (See "Concept References" in each Marstonia species.)
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Pyrgulopsis: Brief Summary

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Pyrgulopsis is a genus of freshwater snails with a gill and an operculum, aquatic gastropod mollusks in the family Hydrobiidae.

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Pyrgulopsis ( Spanish; Castilian )

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Pyrgulopsis es un género de caracoles de la familia Hydrobiidae. En 1886 Call & Pilsbry describieron el género. Son moluscos gasterópodos de agua dulce, operculados. El nombre Pyrgulopsis se compone de Pyrgula y opsis = "aspecto de".[1]

Las características generales del género Pyrgulopsis son: caparazón diminuto, cónico, algo elongado, sin perforaciones y unicarinado. El ápice es agudo. La apertura es oval.[1]​ El opérculo es oval, delgado, córneo y espiral, con el punto polar bien hacia adelante y próximo a la columela.[1]​ La rádula es odontófora con los dientes arreglados en filas transversas, de acuerdo a la fórmula 3 + 1 + 3.[1]

La distribución del género Pyrgulopsis incluye el oeste y el suroeste de los Estados Unidos.[1]

Especies

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Caparazones de Pyrgulopsis deserta.
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Un caparazón de Pyrgulopsis neomexicana.

Pyrgulopsis es el género con más especies de gasterópodos de agua dulce en América del Norte. En 2010 se reconocieron 133 species en este género,[2][3]​ incluyendo:[4]

Las especies de Pyrgulopsis del Norestes de América[9]​ se consideran en un género aparte llamado Marstonia según Thompson y Hershler (2002).[10]

Referencias

Este artículo incorpora texto de dominio público desde la referencia.[1]

  1. a b c d e f g Call R. E. & Pilsbry H. A. (1886). "On Pyrgulopsis, a new genus of rissoid mollusk, with description of two new forms". Proceeding Davenport Academy of Natural Sciences V.: 9-14 (en inglés).
  2. a b c Hershler R. Liu H.-P. (25 January 2010). "Two new, possibly threatened species of Pyrgulopsis (Gastropoda: Hydrobiidae) from southwestern California". Zootaxa 2343: 1–17, 8 plates. preview
  3. a b c Hershler R., Liu H.-P. & Lang B. K. (2010). "Transfer of Cochliopa texana to Pyrgulopsis (Hydrobiidae) and description of a third congener from the lower Pecos River basin". Journal of Molluscan Studies 76(3): 245-256. doi 10.1093/mollus/eyq002.
  4. Pyrgulopsis, Integrated Taxonomic Information System. Consultado el 5 de enero de 2016.
  5. Hershler R. & Gustafson D. L. (2001). "First record for springsnails (Mollusca: Hydrobiidae: Pyrgulopsis) from the northern Rocky Mountains". Proceedings of the Biological Society of Washington (2001) 114: 297–308. [1]
  6. Herschler R., Liu H.-P., & Gustafson D. L. (10 September 2008). "A second species of Pyrgulopsis (Hydrobiidae) from the Missouri River basin, with molecular evidence supporting faunal origin through Pliocene stream capture across the northern continental divide". Journal Molluscan Studies 74: 403-413; doi 10.1093/mollus/eyn028.
  7. [2]
  8. [3]
  9. Hershler R. (1994). "A review of the North American freshwater snail genus Pyrgulopsis (Hydrobiidae)". Smithsonian Contributions to Zoology 554: 1-115. PDF.
  10. Marstonia http://www.natureserve.org accessed 25 July 2009.

Bibliografía adicional

  • Hershler R. (1998). "A systematic review of the hydrobiid snails (Gastropoda: Rissoidea) of the Great Basin, western United States. Part I. Genus Pyrgulopsis". The Veliger 41(1): 1-132.
  • Hershler R. & Thompson F. G. (1987). "North American Hydrobiidae (Gastropoda: Rissoacea): redescription and the systematic relationships of Tryonia Stimpson, 1865 and Pyrgulopsis Call and Pilsbry, 1886". The Nautilus 101(1): 25-32.
  • Thompson F. G. & Hershler R. (2002). "Two genera of North American freshwater snails: Marstonia Baker, 1926, resurrected to generic status, and Floridobia, new genus (Prosobranchia: Hydrobiidae: Nymphophilinae)". The Veliger 45(3): 269-271.

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wikipedia ES

Pyrgulopsis: Brief Summary ( Spanish; Castilian )

provided by wikipedia ES

Pyrgulopsis es un género de caracoles de la familia Hydrobiidae. En 1886 Call & Pilsbry describieron el género. Son moluscos gasterópodos de agua dulce, operculados. El nombre Pyrgulopsis se compone de Pyrgula y opsis = "aspecto de".​

Las características generales del género Pyrgulopsis son: caparazón diminuto, cónico, algo elongado, sin perforaciones y unicarinado. El ápice es agudo. La apertura es oval.​ El opérculo es oval, delgado, córneo y espiral, con el punto polar bien hacia adelante y próximo a la columela.​ La rádula es odontófora con los dientes arreglados en filas transversas, de acuerdo a la fórmula 3 + 1 + 3.​

La distribución del género Pyrgulopsis incluye el oeste y el suroeste de los Estados Unidos.​

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Pyrgulopsis ( Dutch; Flemish )

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Pyrgulopsis is een geslacht van weekdieren uit de klasse van de Gastropoda (slakken).

Soorten

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Pyrgulopsis: Brief Summary ( Dutch; Flemish )

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Pyrgulopsis is een geslacht van weekdieren uit de klasse van de Gastropoda (slakken).

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Pyrgulopsis ( Portuguese )

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