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Academic literature on the topic 'Pyrgulopsis'

Author: Grafiati

Published: 4 June 2021

Last updated: 27 July 2025

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Journal articles on the topic "Pyrgulopsis"

1

PEREZ, KATHRYN E., MANUEL SPOR LEAL, HOUSTON GLOVER, REBECCA T. CHASTAIN, BENJAMIN T. HUTCHINS, and BENJAMIN SCHWARTZ. "Two new species of Pyrgulopsis Call & Pilsbry, 1886 (Mollusca: Caenogastropoda: Hydrobiidae) from springs in the Rio Grande watershed in Texas." Zootaxa 5071, no. 3 (2021): 384–402. http://dx.doi.org/10.11646/zootaxa.5071.3.5.

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Pyrgulopsis Call & Pilsbry, 1886 is a genus of small (<5 mm) spring snails, usually endemic to single freshwater springs. Two new populations of Pyrgulopsis found in very small, isolated springs and spring runs in the mainstem Rio Grande watershed of western Texas are distinguished from congeners. Mitochondrial and nuclear sequences, morphometrics, and morphological characteristics support Pyrgulopsis rubra sp. nov. and Pyrgulopsis harrymilleri sp. nov. as distinct from other known Pyrgulopsis species, including the geographically proximate P. metcalfi.

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2

PEREZ, KATHRYN E., BENJAMIN T. HUTCHINS, MEGAN SOLIS, and BENJAMIN F. SCHWARTZ. "New species of Pyrgulopsis Call & Pilsbry, 1886 (Mollusca: Caenogastropoda: Hydrobiidae) from two Chihuahuan Desert springs." Zootaxa 5213, no. 1 (2022): 64–74. http://dx.doi.org/10.11646/zootaxa.5213.1.4.

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Two new populations of Pyrgulopsis were found in springs in the Chihuahuan desert region of Texas. Pyrgulopsis Call & Pilsbry, 1886 are a diverse group of snails occupying freshwater springs, usually narrow-range endemics limited to a single spring. Their small ranges confer substantial conservation concern as the drying or disturbance of a single spring can lead to their extinction. We use mitochondrial COI and nuclear LSU sequences, shell morphometrics, and anatomical features to distinguish a new species of Pyrgulopsis endemic to the Big Bend region of Texas.

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3

HERSHLER, ROBERT, and HSIU-PING LIU. "Two new, possibly threatened species of Pyrgulopsis (Gastropoda: Hydrobiidae) from southwestern California." Zootaxa 2343, no. 1 (2010): 1. http://dx.doi.org/10.11646/zootaxa.2343.1.1.

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Here we describe (for conservation purposes) two new species of Pyrgulopsis from southwestern California based on morphologic and molecular (mtCOI) evidence. Pyrgulopsis castaicensis n. sp. is endemic to a single spring in the upper portion of the Santa Clara River basin and may be threatened by the proposed development of a master-planned community (Newhall Ranch) near Santa Clarita Valley. This snail differs from two morphologically similar regional congeners (P. micrococcus [Pilsbry in Stearns, 1893], P. stearnsiana [Pilsbry, 1899]) by its larger terminal gland, simple oviduct coil and mtCO

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4

Riley, Leslie, Mark Dybdahl, and Robert Hall, Jr. "Invasive Species Impact: Direct and Indirect Interactions Between Two Stream Snails and Their Algal Resources." UW National Parks Service Research Station Annual Reports 28 (January 1, 2004): 61–69. http://dx.doi.org/10.13001/uwnpsrc.2004.3577.

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We measured the strength of direct and indirect interactions in order to develop a standardized estimate of the impact of an invasive snail on its resource and a competitor. The freshwater New Zealand snail, Potamopyrgus antipodarum, an invasive species in the western U.S., is the most abundant benthic macroinvertebrate grazer in several rivers, where it overlaps with several threatened endemic snails. In one watershed, Potamopyrgus coexists with the snail, Pyrgulopsis robusta, which may be affected by resource competition with Potamopyrgus. In field enclosure experiments, we quantified the di

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5

Hershler, Robert, and Hsiu-Ping Liu. "Two new, possibly threatened species of Pyrgulopsis (Gastropoda: Hydrobiidae) from southwestern California." Zootaxa 2343 (December 31, 2010): 1–17. https://doi.org/10.5281/zenodo.193333.

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6

Hershler, Robert, and Hsiu-Ping Liu. "New species and records of Pyrgulopsis (Gastropoda: Hydrobiidae) from the Snake River basin, southeastern Oregon: further delineation of a highly imperiled fauna." Zootaxa 2006 (December 31, 2009): 1–22. https://doi.org/10.5281/zenodo.185684.

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Hershler, Robert, Liu, Hsiu-Ping (2009): New species and records of Pyrgulopsis (Gastropoda: Hydrobiidae) from the Snake River basin, southeastern Oregon: further delineation of a highly imperiled fauna. Zootaxa 2006: 1-22, DOI: 10.5281/zenodo.185684

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7

Perez, Kathryn E., Benjamin T. Hutchins, Megan Solis, and Benjamin F. Schwartz. "New species of Pyrgulopsis Call & Pilsbry, 1886 (Mollusca: Caenogastropoda Hydrobiidae) from two Chihuahuan Desert springs." Zootaxa 5213, no. 1 (2022): 64–74. https://doi.org/10.11646/zootaxa.5213.1.4.

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Perez, Kathryn E., Hutchins, Benjamin T., Solis, Megan, Schwartz, Benjamin F. (2022): New species of Pyrgulopsis Call & Pilsbry, 1886 (Mollusca: Caenogastropoda Hydrobiidae) from two Chihuahuan Desert springs. Zootaxa 5213 (1): 64-74, DOI: 10.11646/zootaxa.5213.1.4

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8

Perez, Kathryn E., Manuel Spor Leal, Houston Glover, Rebecca T. Chastain, Benjamin T. Hutchins, and Benjamin Schwartz. "Two new species of Pyrgulopsis Call & Pilsbry, 1886 (Mollusca: Caenogastropoda: Hydrobiidae) from springs in the Rio Grande watershed in Texas." Zootaxa 5071, no. 3 (2021): 384–402. https://doi.org/10.11646/zootaxa.5071.3.5.

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Perez, Kathryn E., Leal, Manuel Spor, Glover, Houston, Chastain, Rebecca T., Hutchins, Benjamin T., Schwartz, Benjamin (2021): Two new species of Pyrgulopsis Call & Pilsbry, 1886 (Mollusca: Caenogastropoda: Hydrobiidae) from springs in the Rio Grande watershed in Texas. Zootaxa 5071 (3): 384-402, DOI: 10.11646/zootaxa.5071.3.5

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9

Malcom, Jacob, William R. Radke, and Brian K. Lang. "Habitat Associations of the San Bernardino Springsnail,Pyrgulopsis bernardina(Hydrobiidae)." Journal of Freshwater Ecology 20, no. 1 (2005): 71–77. http://dx.doi.org/10.1080/02705060.2005.9664938.

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10

Perez, Kathryn E., Vanessa Saenz, Natalia Salazar-Lozano, Benjamin F. Schwartz, and Benjamin T. Hutchins. "DNA barcoding of springsnails (Mollusca, Gastropoda, Caenogastropoda) endemic to the Trans-Pecos region of Texas (USA)." Check List 19, no. 4 (2023): 561–72. http://dx.doi.org/10.15560/19.4.561.

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In desert environments, unique communities depend on groundwater from springs, including a diverse radiation of small (<5 mm) snails found in the desert across the southwestern United States. Nearly all springsnail species are considered critically imperiled with their existence depending on maintenance of spring-flows in regions of declining water availability. Extant, endemic springsnails in the Trans-Pecos region of Texas include one species of Pseudotryonia Hershler, 2001, five nominal Tryonia W. Stimpson, 1865 (Cochliopidae) and seven Pyrgulopsis Call & Pilsbry, 1886 (Hydrobiidae).

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Books on the topic "Pyrgulopsis"

1

Hershler, Robert. A review of the North American freshwater snail genus Pyrgulopsis (Hydrobiidae). Smithsonian Institution Press, 1994.

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2

Hershler, Robert. Arizona Hydrobiidae (Prosobranchia:Rissoacea). Smithsonian Institution Press, 1988.

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3

Varricchione, Jeffrey T. Annual monitoring report: Bruneau hot-spring springsnail (Pyrgulopsis bruneauensis). Bureau of Land Management, Idaho State Office, 1996.

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4

Varricchione, Jeffrey T. Annual monitoring report: Bruneau hot-spring springsnail (Pyrgulopsis bruneauensis). U.S. Department of the Interior, Bureau of Land Management, Idaho State Office, 1996.

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5

U.S. Fish and Wildlife Service. Region 1., ed. Draft recovery plan for the Bruneau hot springsnail (Pyrgulopsis bruneauensis). Region 1, U.S. Fish and Wildlife Service, 2000.

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6

Varricchione, Jeffrey T. Annual monitoring report, 1997: Bruneau hot-spring springsnail (Pyrgulopsis bruneauensis). Bureau of Land Management, Idaho State Office, 1998.

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7

Recovery plan for the rare species of Soldier Meadows. U.S. Fish and Wildlife Service, Region 1, 1997.

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Book chapters on the topic "Pyrgulopsis"

1

Hershler, Robert, and Hsiu-Ping Liu. "Ancient vicariance and recent dispersal of springsnails (Hydrobiidae: Pyrgulopsis) in the Death Valley system, California-Nevada." In Special Paper 439: Late Cenozoic Drainage History of the Southwestern Great Basin and Lower Colorado River Region: Geologic and Biotic Perspectives. Geological Society of America, 2008. http://dx.doi.org/10.1130/2008.2439(04).

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