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<p>A comprehensive survey conducted between 2016 and 2023 documented a total of 2 orders, 5 families, 13 genera, and 19 species/subspecies of leeches from various aquatic and terrestrial habitats of West Bengal, reflecting significant taxonomic diversity. Within the genus <i>Haemadipsa</i> (Family: Haemadipsidae), multiple species have been recorded, including <i>Haemadipsa sylvestris</i> Blanchard, 1894; <i>Haemadipsa anaigundiensis</i> Mandal, 2009; <i>Haemadipsa montana</i> Moore, 1927; <i>Haemadipsa ornata</i> Moore, 1927; and three subspecies of <i>Haemadipsa zeylanica</i>—namely <i>H. z. agilis</i> Moore, 1927, <i>H. z. montivindicis</i> Moore, 1927, and <i>H. z. zeylanica</i> (Moquin-Tandon, 1826). From the family Erpobdellidae, <i>Nematobdella indica</i> Kaburaki, 1921 exhibits distinctive morphological traits, while <i>Erpobdella octoculata</i> (Linnaeus, 1758) is notable for its wide distribution. Additional representatives include <i>Herpobdelloidea lateroculata</i> Kaburaki, 1921 and <i>Barbronia weberi</i> (Blanchard, 1897), which are typical non-parasitic species. The family Hirudinidae is represented by two species of <i>Poecilobdella</i>—<i>P. granulosa</i> (Savigny, 1820) and <i>P. manillensis</i> (Lesson, 1842) both parasitic in nature. Other noteworthy medicinal and scientific species include <i>Hirudo birmanica</i> Blanchard, 1894 and <i>Whitmania laevis</i> (Baird, 1869). From the family Glossiphoniidae, <i>Placobdella emydae</i> Harding, 1924 is recognized as a common ectoparasite of turtles and other reptiles. Two subspecies of <i>Hemiclepsis marginata</i>—<i>H. m. asiatica</i> Moore, 1924 and <i>H. m. marginata</i> (O.F. Müller, 1773) are frequently encountered in freshwater systems. Finally, <i>Paraclepsis gardensi</i> Mandal, 2004, locally known as the “Jewel Leech of Botanical Garden,” is remarkable for its vivid coloration, ovate body shape, and uniquely branched stomach, making it a significant addition to the region's leech diversity.</p>

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Leech Fauna of West Bengal: A Collection-Based Study

  • 期刊论文

  • 发表日期：

    2026年2月28日

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  • Md. Nurul Hasan,
  • Shyamasree Ghosh,
  • Chandra Kanta Mandal,
  • Dhriti Banerjee

摘要

A comprehensive survey conducted between 2016 and 2023 documented a total of 2 orders, 5 families, 13 genera, and 19 species/subspecies of leeches from various aquatic and terrestrial habitats of West Bengal, reflecting significant taxonomic diversity. Within the genus Haemadipsa (Family: Haemadipsidae), multiple species have been recorded, including Haemadipsa sylvestris Blanchard, 1894; Haemadipsa anaigundiensis Mandal, 2009; Haemadipsa montana Moore, 1927; Haemadipsa ornata Moore, 1927; and three subspecies of Haemadipsa zeylanica—namely H. z. agilis Moore, 1927, H. z. montivindicis Moore, 1927, and H. z. zeylanica (Moquin-Tandon, 1826). From the family Erpobdellidae, Nematobdella indica Kaburaki, 1921 exhibits distinctive morphological traits, while Erpobdella octoculata (Linnaeus, 1758) is notable for its wide distribution. Additional representatives include Herpobdelloidea lateroculata Kaburaki, 1921 and Barbronia weberi (Blanchard, 1897), which are typical non-parasitic species. The family Hirudinidae is represented by two species of Poecilobdella—P. granulosa (Savigny, 1820) and P. manillensis (Lesson, 1842) both parasitic in nature. Other noteworthy medicinal and scientific species include Hirudo birmanica Blanchard, 1894 and Whitmania laevis (Baird, 1869). From the family Glossiphoniidae, Placobdella emydae Harding, 1924 is recognized as a common ectoparasite of turtles and other reptiles. Two subspecies of Hemiclepsis marginata—H. m. asiatica Moore, 1924 and H. m. marginata (O.F. Müller, 1773) are frequently encountered in freshwater systems. Finally, Paraclepsis gardensi Mandal, 2004, locally known as the “Jewel Leech of Botanical Garden,” is remarkable for its vivid coloration, ovate body shape, and uniquely branched stomach, making it a significant addition to the region's leech diversity.