Plectopylidae

Plectopylidae is a taxonomic family of large air-breathing land snails, terrestrial pulmonate gastropod mollusks in the superfamily Plectopyloidea. [1] [2]

Plectopylidae
Gudeodiscus messageri raheemi
Plectopylis bensoni shells
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Subclass: Heterobranchia
Order: Stylommatophora
Suborder: Helicina
Superfamily: Plectopyloidea
Family: Plectopylidae
Möllendorff, 1898

Distribution

The range of the family Plectopylidae (Plectopylis Benson 1860 s. l.) extends from Nepal and Northeastern India through large part of Southeastern Asia (including the Malay Peninsula, Northern Thailand, Northern Vietnam, Central and Southern China) to Taiwan and Southern Japan. Up to now, the distribution of Plectopylidae is divided into two geographic regions: (1) Nepal, Northeastern India (Assam and Arunachal Pradesh), Myanmar, western Yunnan, western part of Thailand, Northern Malaysia and northwestern part of Laos, and (2) Northern Vietnam, Southern China (west of the Eastern Yunnan–Guizhou–Middle Sichuan line), Taiwan and the Ryukyu Islands.[3][4]

Taxonomy

This family has two subfamilies:

  • Plectopylinae Möllendorff, 1898
  • Sinicolinae Páll-Gergely, 2018

Genera

Genera within the family Plectopylidae include:

Plectopylinae Möllendorff, 1898
Sinicolinae Páll-Gergely, 2018
  • Endothyrella Zilch, 1959[6]
  • Gudeodiscus Páll-Gergely, 2013[3]
    • subgenus Gudeodiscus Páll-Gergely, 2013
    • subgenus Veludiscus Páll-Gergely, 2015[7]
  • Halongella Páll-Gergely, 2015[7]
  • † Plectopyloides Yen, 1969 - fossil genus from China[8]
  • Sicradiscus Páll-Gergely, 2013[3]
  • Sinicola Gude, 1899[4]
Genera brought into synonymy
  • Endoplon Gude, 1899:[4] synonym of Chersaecia Gude, 1899 (junior synonym)
  • Endothyra Gude, 1899: synonym of Endothyrella Zilch, 1960

Gerard Kalshoven Gude revised every known taxon of Plectopylis at the end of the 19th century, and he published drawings of their shells and armature (lamella complex).[9] He subdivided Plectopylis into seven “sections”: Endothyra, Chersaecia, Endoplon, Plectopylis, Sinicola, Enteroplax Gude, 1899 and Sykesia Gude, 1897.[9] Enteroplax was transferred to the family Strobilopsidae Wenz, 1915.[9] Ruthvenia Gude, 1911 (replacement name for Sykesia which itself was a replacement name for Austenia Gude, 1897) was transferred to the family Endodontidae Pilsbry, 1895 or to the Charopidae Hutton, 1884.[9] The name Endothyrella was established by Zilch (1960) to replace the generic name Endothyra Gude, 1899, that is a junior homonym of foraminiferan genus Endothyra Phillips, 1845.[9] Genus Amphicoelina Haas, 1933[10] was classified within Plectopylidae before, but it was moved to Camaenidae in 2013.[8]

Gude's diagnoses of his sections are based on the direction of the coiling of the shell, the depth of the umbilicus, and the morphology and direction of the palatal folds.[9] Most of Gude's diagnoses are not mutually exclusive.[9] Moreover, several species were misassigned by Gude, which was probably the result of focusing exclusively on the morphology of the parietal plicae.[9] Most of plectopylid species were reviewed and some were reassigned by Barna Páll-Gergely and his colleagues in 2013-2016.[9]

Overview of species

Species within the family Plectopylidae include:

  1. Chersaecia austeni (Gude, 1899)
  2. Chersaecia brachydiscus (Godwin-Austen, 1879)
  3. Chersaecia degerbolae (Solem, 1966)
  4. Chersaecia dextrorsa (Benson, 1860)
  5. Chersaecia kengtungensis (Gude, 1914)
  6. Chersaecia leiophis (Benson, 1860) - type species, synonym: Chersaecia pseudophis Godwin-Austen, 1875
  7. Chersaecia munipurensis (Godwin-Austen, 1875)
  8. Chersaecia muspratti (Gude, 1897)
  9. Chersaecia nagaensis (Godwin-Austen, 1875)
  10. Chersaecia perarcta (Blanford, 1865)
  11. Chersaecia perrierae (Gude, 1897)
  12. Chersaecia refuga (Gould, 1846)
  13. Chersaecia shanensis (Stoliczka, 1873)
  14. Chersaecia shiroiensis (Godwin-Austen, 1875)
  15. Chersaecia simplex (Solem, 1966)
  16. Endoplon brachyplecta (Benson, 1863) - type species
  17. Endoplon smithiana (Gude, 1896)
  18. Endothyrella aborensis (Gude, 1915)
  19. Endothyrella affinis (Gude, 1896)
  20. Endothyrella angulata Budha & Páll-Gergely, 2015[9]
  21. Endothyrella babbagei (Gude, 1915)
  22. Endothyrella brahma (Godwin-Austen, 1879)
  23. Endothyrella bedfordi (Gude, 1915)
  24. Endothyrella blanda (Gude, 1897)
  25. Endothyrella dolakhaensis Budha & Páll-Gergely, 2015[9]
  26. Endothyrella fultoni (Godwin-Austen, 1892)
  27. Endothyrella gregorsoni (Gude, 1915)
  28. Endothyrella inexpectata Páll-Gergely, 2015[9]
  29. Endothyrella macromphalus (W. Blanford, 1870)
  30. Endothyrella minor (Godwin-Austen, 1879)
  31. Endothyrella miriensis (Gude, 1915)
  32. Endothyrella nepalica Budha & Páll-Gergely, 2015[9]
  33. Endothyrella oakesi (Gude, 1915)
  34. Endothyrella oglei (Godwin-Austen, 1879) - synonym: Chersaecia oglei (Godwin-Austen, 1879)[9]
  35. Endothyrella pinacis (Benson, 1859) - synonym: Endothyrella pettos (von Martens, 1868)
  36. Endothyrella plectostoma (Benson, 1836) - type species, subspecies: Endothyrella plectostoma prodigium (Benson); Endothyrella plectostoma exerta (Gude, 1901)
  37. Endothyrella robustistriata Páll-Gergely, 2015[9]
  38. Endothyrella serica (Godwin-Austen, 1875) - synonym: Chersaecia serica (Godwin-Austen, 1875)[9]
  39. Endothyrella sowerbyi (Gude, 1898)
  40. Endothyrella tricarinata (Gude, 1897)[9]
  41. Endothyrella williamsoni (Gude, 1915)
  42. Gudeodiscus anceyi (Gude, 1901)
  43. Gudeodiscus concavus Páll-Gergely, 2013
  44. Gudeodiscus cyrtochilus (Gude, 1909)
  45. Gudeodiscus dautzenbergi (Gude, 1901) - synonym: Gudeodiscus persimilis (Gude, 1901)[7]
  46. Gudeodiscus emigrans (Möllendorff, 1901) - subspecies: Gudeodiscus emigrans otanii Páll-Gergely & Hunyadi, 2013; Gudeodiscus emigrans quadrilamellatus Páll-Gergely, 2013
  47. Gudeodiscus eroessi Páll-Gergely & Hunyadi, 2013 - subspecies: Gudeodiscus eroessi fuscus Páll-Gergely & Hunyadi, 2013; Gudeodiscus eroessi hemisculptus Páll-Gergely, 2013
  48. Gudeodiscus fischeri (Gude, 1901) - synonym: Gudeodiscus tenuis (Gude, 1901)[7]
  49. Gudeodiscus francoisi (H. Fischer, 1899) - synonyms: Gudeodiscus lepidus (Gude, 1900); Gudeodiscus bavayi (Gude, 1901)
    Photo of an oblique frontal/right side view of a live Gudeodiscus giardi on a white background.
    Gudeodiscus giardi
  50. Gudeodiscus giardi (H. Fischer, 1898) - synonym: Gudeodiscus congestus (Gude, 1898);[7] subspecies: Gudeodiscus giardi szekeresi Páll-Gergely & Hunyadi, 2013; Gudeodiscus giardi oharai Páll-Gergely, 2013
  51. Gudeodiscus goliath Páll-Gergely & Hunyadi, 2013
  52. Gudeodiscus hemmeni Páll-Gergely & Hunyadi, 2015[7]
  53. Gudeodiscus infralevis (Gude, 1908) - synonym: Gudeodiscus soror (Gude, 1908)[7]
  54. Gudeodiscus longiplica Páll-Gergely & Asami, 2016[11]
  55. Gudeodiscus marmoreus Páll-Gergely, 2014[8]
  56. Gudeodiscus messageri (Gude, 1909) - subspecies: Gudeodiscus messageri raheemi Páll-Gergely & Hunyadi, 2015[7][5]
  57. Gudeodiscus multispira (Möllendorff, 1883)
  58. Gudeodiscus okuboi Páll-Gergely & Hunyadi, 2013
  59. Gudeodiscus phlyarius (Mabille, 1887) - type species, synonyms: Gudeodiscus moellendorffi (Gude, 1901); Gudeodiscus gouldingi (Gude, 1909); Gudeodiscus verecundus (Gude, 1909); Gudeodiscus fallax (Gude, 1909); Gudeodiscus anterides (Gude, 1909); Gudeodiscus phlyarius werneri Páll-Gergely, 2013[7]
  60. Gudeodiscus pulvinaris (Gould, 1859) - subspecies: Gudeodiscus pulvinaris robustus Páll-Gergely & Hunyadi, 2013
  61. Gudeodiscus soosi Páll-Gergely, 2013[11]
  62. Gudeodiscus suprafilaris (Gude, 1908)
  63. Gudeodiscus ursula Páll-Gergely & Hunyadi, 2013
  64. Gudeodiscus villedaryi (Ancey, 1888)
  65. Gudeodiscus yanghaoi Páll-Gergely & Hunyadi, 2013
  66. Gudeodiscus yunnanensis Páll-Gergely, 2013
  67. Halongella fruhstorferi (Möllendorff, 1901) - synonym: Gudeodiscus fruhstorferi (Möllendorff, 1901)[7]
    Photo of a right side view of a live Halongella schlumbergeri on a white background.
    Halongella schlumbergeri
  68. Halongella schlumbergeri (Morlet, 1886) - type species, synonym: Gudeodiscus schlumbergeri (Morlet, 1886); Gudeodiscus jovius (Mabille, 1887); Gudeodiscus hirsutus (Möllendorff, 1901); Gudeodiscus pilsbryana (Gude, 1901)[7]
  69. Hunyadiscus andersoni (W. Blanford, 1869) - synonym: Chersaecia andersoni (W. Blanford, 1869)[5]
  70. Hunyadiscus saurini Páll-Gergely, 2016[5]
    Photo of a right side view of a live Naggsia laomontana in situ.
    Naggsia laomontana
  71. Naggsia laomontana (L. Pfeiffer, 1862) - synonym: Chersaecia laomontana (L. Pfeiffer, 1862)[5]
  72. Plectopylis bensoni (Gude, 1914) - type species
  73. Plectopylis anguina (Gould, 1847)
  74. Plectopylis cairnsi (Gude, 1898)
  75. Plectopylis cyclaspis (Benson, 1859) - synonym: Plectopylis revoluta Pfeiffer, 1867
  76. Plectopylis feddeni (W. Blanford, 1865)
  77. Plectopylis karenorum (W. Blanford, 1865)
  78. Plectopylis goniobathmos (Ehrmann, 1922)
  79. Plectopylis leucochila (Gude, 1897)
  80. Plectopylis linterae (Möllendorff, 1897)
  81. Plectopylis lissochlamys (Gude, 1897)
  82. Plectopylis magna (Gude, 1897)
  83. Plectopylis ponsonbyi (Godwin-Austen, 1888)
  84. Plectopylis repercussa (Gould, 1856)
  85. Plectopylis woodthorpei (Gude, 1899)
  86. Sicradiscus cutisculptus (Möllendorff, 1882)
  87. Sicradiscus diptychia (Möllendorff, 1885)
  88. Sicradiscus feheri Páll-Gergely & Hunyadi, 2013
  89. Sicradiscus hirasei (Pilsbry, 1904)
  90. Sicradiscus invius (Heude, 1885)
  91. Sicradiscus ishizakii (Kuroda, 1941)
  92. Sicradiscus mansuyi (Gude, 1908)[7]
  93. Sicradiscus schistoptychia (Möllendorff, 1886) - type species
  94. Sicradiscus securus (Heude, 1885)
  95. Sicradiscus transitus Páll-Gergely, 2013
  96. Sinicola asamiana Páll-Gergely, 2013
  97. Sinicola alphonsi (Deshayes, 1870)
  98. Sinicola biforis (Heude, 1885)
  99. Sinicola emoriens (Gredler, 1881)
  100. Sinicola fimbriosa (Martens, 1875) - type species
  101. Sinicola jugatoria (Ancey, 1885) - synonym: Sinicola laminifera (Möllendorff, 1885)
  102. Sinicola murata (Heude, 1885)
  103. Sinicola reserata (Heude, 1885) - subspecies: Sinicola reserata azona (Gredler, 1887); Sinicola reserata hensanensis (Yen, 1939)
  104. Sinicola schmackeri Páll-Gergely, 2013
  105. Sinicola stenochila (Möllendorff, 1885) - subspecies: Sinicola stenochila basilia (Gude, 1897)
  106. Sinicola stenomphala Páll-Gergely & Hunyadi, 2013
  107. Sinicola straeleni (Yen, 1937)
  108. Sinicola vallata (Heude, 1889)
  109. Sinicola vargabalinti Páll-Gergely, 2014[8]

Fossil species:

  1. † Plectopyloides altus[8]
  2. † Plectopyloides applanatus[8]
  3. † Plectopyloides guanzhuangensis[8]
  4. † Plectopyloides multispiralus[8]
  5. † Plectopyloides regularus - type species of the genus Plectopyloides[8]
  6. † Plectopyloides shantungensis Yen, 1969[8]

Ecology

Plectopylid species seem to be associated with calcareous areas in Vietnam.[7] Living specimens occur at the base of large limestone rocks surrounded by leaf litter and humus.[7] Thus, they are not rock-dwelling but ground-dwelling.[7] Most living species have reticulated sculpture on the dorsal shell side, which is often covered with soil and this may be of value in providing camouflage.[7]

References

This article incorporates Creative Commons (CC-BY-4.0) text from the references[7][9]

  1. MolluscaBase eds. (2021). MolluscaBase. Plectopylidae Möllendorff, 1898. Accessed through: World Register of Marine Species at: http://marinespecies.org/aphia.php?p=taxdetails&id=870142 on 2021-03-09
  2. Bouchet, P. & Rocroi, J.-P. (2005). "Classification and Nomenclator of Gastropod Families". Malacologia. 47 (1–2).
  3. Páll-Gergely B. & Hunyadi A. (2013). "The family Plectopylidae Möllendorff 1898 in China (Gastropoda, Pulmonata)". Archiv für Molluskenkunde 142(1): 1-66. doi:10.1127/arch.moll/1869-0963/142/001-066.
  4. Gude, G. K. (1899). "Armature of Helicoid landshells and new sections of Plectopylis". Science Gossip 6: 147-149.
  5. Páll-Gergely B., Muratov I. V. & Asami T. (2016). "The family Plectopylidae (Gastropoda, Pulmonata) in Laos with the description of two new genera and a new species". ZooKeys 592: 1-26. doi:10.3897/zookeys.592.8118.
  6. Zilch A. (1959-1960). "Handbuch der Paleozoologie", 6 (2) Euthyneura. — 481–834; Berlin (Gebrüder Borntraeger).
  7. Páll-Gergely B., Hunyadi A., Ablett J., Lương H. V., Naggs F. & Asami T. (2015). "Systematics of the family Plectopylidae in Vietnam with additional information on Chinese taxa (Gastropoda, Pulmonata, Stylommatophora)". ZooKeys 473: 1-118. doi:10.3897/zookeys.473.8659.
  8. Páll-Gergely B. & Asami T. (2014). "Additional information on the distribution, anatomy and systematics of living and fossil Chinese Plectopylidae (Gastropoda: Pulmonata)". Genus 25(3): 527-564. PDF.
  9. Páll-Gergely B., Budha P. B., NaggsF., Backeljau T. & Asami T. (2015). "Review of the genus Endothyrella Zilch, 1960 with description of five new species (Gastropoda, Pulmonata, Plectopylidae)". ZooKeys 529: 1-70. doi:10.3897/zookeys.529.6139.
  10. Haas, F. (1933). "Zur Systematik der chinesischen "Helicodonten"". Archiv für Molluskenkunde. 65 (4/5): 230–231.
  11. Páll-Gergely B. & Asami T. (2016). "A new species of Gudeodiscus Páll-Gergely, 2013 from China, with extraordinary conchological and anatomical features (Gastropoda, Pulmonata, Plectopylidae)". ZooKeys 564: 1-19. doi:10.3897/zookeys.564.6560.
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