First record of subterranean freshwater gastropods (Mollusca, Gastropoda, Cochliopidae) from the cenotes of Yucatán state

Grego, Jozef; Angyal, Dorottya; Beltrán, Luis Arturo Liévano

doi:10.3897/subtbiol.29.32779

Cited by 12 publications

(22 citation statements)

References 5 publications

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“…There are almost no records of mollusks from the important wetlands of Guerrero (rivers: Atoyac, Papagayo, and Ometepec), Oaxaca (Río Verde), Nayarit (San Blas-La Tovara wetlands) and Sinaloa (Río Baluarte), although these sites are known as ecosystems with high diversity of aquatic species (Bezaury-Creel et al, 2017; Conabio, 2008). Almost completely unexplored are the caves and subterranean habitats in the northern and southern (Yucatán Peninsula) part of the country (Grego et al, 2019). Only a few cave-dwelling and subterranean species of Paludiscala, Balconorbis, Coahuilix, Phreatoceras, Emmericiella, Phreatomascogos and Pterides have been reported from the extensive karst regions of Coahuila and San Luis Potosí states.…”

Section: Resultsmentioning

confidence: 99%

The freshwater snails (Mollusca: Gastropoda) of Mexico: updated checklist, endemicity hotspots, threats and conservation status

Czaja

Meza-Sánchez²,

Estrada-Rodríguez³

et al. 2020

Rev.Mex.Biodiv.

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We present an updated checklist of native Mexican freshwater gastropods with data on their general distribution, hotspots of endemicity, threats, and for the first time, their estimated conservation status. The list contains 193 species, representing 13 families and 61 genera. Of these, 103 species (53.4%) and 12 genera are endemic to Mexico, and 75 species are considered local endemics because of their restricted distribution to very small areas. Using NatureServe Ranking, 9 species (4.7%) are considered possibly or presumably extinct, 40 (20.7%) are critically imperiled, 30 (15.5%) are imperiled, 15 (7.8%) are vulnerable and only 64 (33.2%) are currently stable. With 61 species in 21 genera, the Cochliopidae are the most diverse family, followed by the Planorbidae (37 species) and Pachychilidae (31). Pachychilus is the most species-rich genus with 30 species. Despite the high number of imperiled species (84), only 7 species (3.6%) are currently listed as endangered by the Mexican Secretariat of Environment and Natural Resources. We identified 3 hotspots and 2 potential centers of gastropod endemicity. Our research serves as a first step for determining priority areas for conservation of imperiled Mexican freshwater gastropods. A. Czaja et al. / Revista Mexicana de Biodiversidad 91 (2020): e912909 2 https://doi.org/10. 22201/ib.20078706e.2020.91.2909 ResumenSe presenta un listado actualizado de gasterópodos dulceacuícolas nativos de México con datos de su distribución general, hotspots de endemicidad, amenazas y, por primera vez, su estado de conservación estimado. La lista contiene 193 especies, 13 familias y 61 géneros. De éstas, 103 especies (53.4%) y 12 géneros son endémicos de México y 75 de estas especies se consideraron endémicas locales debido a su distribución restringida a áreas muy pequeñas. Usando NatureServe Ranking, consideramos 9 especies (4.7%) posiblemente o probablemente extintas, 40 (20.7%) en peligro crítico, 30 (15.5%) en peligro, 15 (7.8%) son vulnerables y solo 64 (33.2%) están estables actualmente. Con 61 especies en 21 géneros, Cochliopidae es la familia más diversa, seguida de Planorbidae (37 especies) y Pachychilidae (31). Pachychilus (Pachychilidae) con 30 especies, es el género más rico en especies de los gasterópodos dulceacuícolas mexicanos. A pesar del alto número de caracoles en peligro (84), solo 7 (3.6%) están actualmente catalogados en peligro por la Secretaría de Medio Ambiente y Recursos Naturales de México. Identificamos 3 hotspots y 2 centros potenciales de endemicidad. Los resultados servirán como un primer paso para determinar las áreas prioritarias para la conservación de los gasterópodos mexicanos amenazados.

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Section: Resultsmentioning

confidence: 99%

The freshwater snails (Mollusca: Gastropoda) of Mexico: updated checklist, endemicity hotspots, threats and conservation status

Czaja

Meza-Sánchez²,

Estrada-Rodríguez³

et al. 2020

Rev.Mex.Biodiv.

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“…The above described new genus and species of subterranean snails from Coahuila and the recently reported findings from Yucatán (Grego et al 2019) demonstrate that there is a great potential for discovering more stygobiont species in these large unexplored karst regions in Mexico. We hope that our efforts will also provide motivation for other researchers to investigate the diversity of phreatic gastropods in Mexico.…”

Section: Resultsmentioning

confidence: 73%

“…Compared to worldwide biodiversity hotspots as the Balkans (Sket, 2012), the North American subterranean snail fauna is not very rich in known species, including only 39 species of 17 genera (Hershler and Longley 1990;Czaja et al 2017a;Grego et al 2019). Seven of these genera occur in Mexico: Paludiscala Taylor, 1966, Phreatoceras Hershler & Longley, 1987, Coahuilix Taylor, 1966, in Cuatro Ciénegas Valley, Coahuila, Emmericiella Pilsbry, 1909, Pterides Pilsbry, 1909 in the state of San Luis Potosí, Pyrgophorus Ancey, 1888 and the recently described genus Mexicenotica Grego, Angyal and Liévano-Beltrán, 2019 in Yucatán.…”

Section: Introductionmentioning

confidence: 99%

New genus, two new species and new records of subterranean freshwater snails (Caenogastropoda; Cochliopidae and Lithoglyphidae) from Coahuila and Durango, Northern Mexico

Czaja¹,

Cardoza-Martínez²,

Meza-Sánchez³

et al. 2019

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This paper describes a new genus, two new species and new records of subterranean gastropods from the Sabinas and Álamos River, Coahuila, and the Nazas River, Durango, in northern Mexico. Phreatomascogosgregoigen. n. et sp. n. from Don Martín Basin, Coahuila, is described based on shells and opercula that show some morphological similarities with shells of Phreatodrobia Hershler & Longley, 1986 (Lithoglyphidae), which is a subterranean genus from neighboring area in Texas, United States. Conchologically, the new genus can be distinguished from Phreatodrobia and all other subterranean genera by a unique combination of characteristic shell morphology and opercula apomorphies. Balconorbissabinasensesp. n. (Cochliopidae) is the second species of this genus, which was previously known only from caves and associated subterranean habitats in Texas. The new record of Coahuilixparrasense, Czaja, Estrada-Rodríguez, Romero-Méndez, Ávila-Rodríguez, Meza-Sánchez & Covich, 2017 (Cochliopidae) from Durango and Coahuila is the first record of extant member of this genus out of its hitherto known habitat in the Cuatro Ciénegas basin, Coahuila. These records are remarkable because C.parrasense had been described recently as a fossil species. Shell morphologies of the new subterranean snails could be interpreted as possible evolutional adaptations to different hydrodynamic and other specific conditions in their habitat.

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“…Prior to Cenoteado's work only less than five percent had been zoologically investigated out of the more than 3,000 officially registered cenotes in Yucatan (SDS Yu catan census). The project's goal has been to provide data from cenotes that had never been studied, with expedi-tions leading to the discovery of stygobionts previously unknown in the region and to the description of species new to science (Angyal et al 2018;Grego et al 2019). Together with these records and the most recent description of Álvarez et al (2019) of a new subterranean isopod, the number of stygobiont malacostracan species of the state of Yucatan has elevated to seventeen.…”

Section: Introductionmentioning

confidence: 99%

Uptaded checklist, historical overview and illustrated guide to the stygobiont Malacostraca (Arthropoda: Crustacea) species of Yucatan (Mexico)

Angyal¹,

Simões²,

Mascaró³

2020

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This study provides an updated checklist and an illustrated guide to the 17 currently known stygobiont Malacostraca species of the state of Yucatan (Yucatan Peninsula, Mexico). The compilation is based on the individuals collected during our cave-diving expeditions (2016–2019), and, has the purpose of expanding previous knowledge on the taxonomy of these subterranean crustaceans. The identification guide contains drawings of the main diagnostic characters of the species as well as a brief introduction of the relevant malacostracan orders. The information is further complemented with a historic account and timeline of the stygobiont Malacostraca species of the Yucatan Peninsula. This is the first study that provides a unified tool for the morphological identification of these highly endemic species.

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First record of subterranean freshwater gastropods (Mollusca, Gastropoda, Cochliopidae) from the cenotes of Yucatán state

Cited by 12 publications

References 5 publications

The freshwater snails (Mollusca: Gastropoda) of Mexico: updated checklist, endemicity hotspots, threats and conservation status

The freshwater snails (Mollusca: Gastropoda) of Mexico: updated checklist, endemicity hotspots, threats and conservation status

New genus, two new species and new records of subterranean freshwater snails (Caenogastropoda; Cochliopidae and Lithoglyphidae) from Coahuila and Durango, Northern Mexico

Uptaded checklist, historical overview and illustrated guide to the stygobiont Malacostraca (Arthropoda: Crustacea) species of Yucatan (Mexico)

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