Journal of Threatened Taxa |
www.threatenedtaxa.org | 26 June 2022 | 14(6): 21307–21310
ISSN 0974-7907 (Online) | ISSN 0974-7893
(Print)
https://doi.org/10.11609/jott.7630.14.6.21307-21310
#7630 | Received 25 August 2021 | Final
received 02 June 2022 | Finally accepted 08 June 2022
Range extension of earthworm Drawida impertusa
Stephenson, 1920 (Clitellata: Moniligastridae)
in Karnataka, India
Vivek Hasyagar
1, S. Prasanth Narayanan 2 & K.S. Sreepada
3
1,3 Department of Applied Zoology,
Mangalore University, Mangalagangothri, Mangalore,
Karnataka 574199, India.
2 Advanced Centre of Environmental
Studies and Sustainable Development, Mahatma Gandhi University, Priyadarsini Hills, Kottayam, Kerala 686560, India.
1 vivek.hasyagar@gmail.com, 2 narayanankc@gmail.com,
3 srisuchith@gmail.com (corresponding author)
Editor: Tuneera Bhadauria,
Feroze Gandhi College, Raebareli,
India. Date of publication: 26 June 2022
(online & print)
Citation: Hasyagar, V., S.P. Narayanan & K.S. Sreepada (2022).Range
extension of earthworm Drawida impertusa Stephenson, 1920 (Clitellata:
Moniligastridae) in Karnataka state, India. Journal of Threatened Taxa 14(6): 21307–21310. https://doi.org/10.11609/jott.7630.14.6.21307-21310
Copyright: © Hasyagar
et al. 2022. Creative Commons Attribution
4.0 International License. JoTT allows unrestricted use, reproduction, and
distribution of this article in any medium by providing adequate credit to the
author(s) and the source of publication.
Funding: University Grant Commission
Special Assistance Programme (USC-SAP).
Competing interests: The authors
declare no competing interests.
Acknowledgements: First author acknowledges the
University Grant Commission for the financial support through Special
Assistance Programme (UGC-SAP) and to the Department of Applied Zoology
Mangalore University, Mangalagangothri for necessary
facilities. We thank professor A.P. Thomas, director of Advanced Centre of
Environmental Studies and Sustainable Development, Mahatma Gandhi University,
Kerala, India for providing facilities and support in earthworm identification.
We are grateful to the Karnataka Forest Department, Government of Karnataka,
for providing the sanction and necessary conveniences.
Abstract: As a part of an ongoing study on
the bio-ecology of earthworms, since 2017 surveys has been carried out in
different ecosystems of Western Ghats, Karnataka. This has revealed the
presence of one native peregrine species Drawida
impertusa Stephenson, 1920 of the family Moniligastridae. The species is recorded for the second
time from Karnataka state. The paper describes the morphological and anatomical
details along with current distribution of the species.
Keywords: Anatomical details, biodiversity
hotspot, distribution, ecosystems, native, peregrine species, Shivamogga,
Western Ghats.
Earthworms
are well-known terrestrial segmented worms belonging to phylum Annelida and
they possess a unique position in soil macro fauna. They are the first group of
multi-cellular, eucoelomate invertebrates (Kale &
Karmegam 2010). Western Ghats and the western coast
plains are the areas with highest diversity of earthworms in India (Narayanan
et al. 2020). Karnataka state located in the southwestern part of peninsular
India has high earthworm diversity. This richness is mainly due to the
geographical position of the state, which has the western coastal plains,
Western Ghats mountain ranges and Deccan Plateau. Taxonomic studies on the
earthworms of the Western Ghats started towards the last quarter of the 19th
century by Bourne (1886), but the Karnataka
state was explored during the first quarter of the 20th century by Michaelsen (1910) with a report on the presence of a
peregrine species, Pontoscolex corethrurus (Müller, 1857). Afterwards, eminent
taxonomists described several new species and reported many species from
different parts of the state, especially from the Western Ghats and western
coastal plains (Stephenson 1917, 1920, 1921, 1924, 1925; Michaelsen
1921, 1922; Rao 1921, 1922; Gates 1937, 1940a,b, 1942, 1945). Subsequent to
independence, studies on the earthworms of the state become sporadic and mostly
faunistic in nature (Gates 1958, 1965; Julka 1988; Julka et al. 2004; SIddaraju et
al. 2010; Hatti 2013; Padashetty & Jadesh 2014; Harish et al. 2018a,b; Mubeen & Hatti
2018; Hasyagar et al. 2021). Since 2017, we have been
surveying various regions in the Western Ghats of Karnataka state as a part of
an ongoing research on the bio-ecology of earthworms from various habitats. The
existence of one native peregrine species, Drawida
impertusa Stephenson, 1920, of the family Moniligastridae is being reported for the second time from
the state of Karnataka.
Samplings
were done by digging and hand sorting method as proposed by Julka
(1990). Soil lumps were broken and the soil was sifted between fingers to sort
out the worms. Collected specimens were preserved in 5% formalin. Important anatomical details of earthworm
were examined under a stereomicroscope (Nikon SMZ800N). Illustrations were made
with the help of a drawing tube attached to the microscope. Specimens were
identified following Stephenson (1920, 1923), Gates (1965), and Blakemore
(2012). Collected specimens were housed at the museum, Department of Applied Zoology,
Mangalore University, Mangalore, and laboratory of Advanced Centre for
Environmental Studies and Sustainable Development (ACESSD), Mahatma Gandhi
University, Kottayam, Kerala, India.
Drawida impertusa Stephenson,
1920
Drawida barwelli var. impertusus Stephenson, 1920: 200.
Drawida barwelli var. impertusa Stephenson, 1923: 134.
Drawida impertusa
(Stephenson): Gates, 1965: 87.
Type
locality: Victoria Gardens Bombay (Mumbai) (18.975o N, 72.825oE),
Mumbai, Maharashtra State, India.
Type: ZSIC 301,
BMNH 1925:5:12:77 (Reynolds & Wetzel 2020).
Material
examined: ACESSD/EW/1177; 10 aclitellate, Nanjavalli (13.9928° N, 75.1876° E), Shivamogga District, Karnataka, India, 17 July
2017, elevation 610 m, edge of paddy
field, coll. V. Hasyagar. (Image 1); 5 aclitellate, Eduvani (14.1948°N,
74.8348°E), Shivamogga District,
Karnataka, India, 13 June 2017 elevation 549 m, semi-evergreen forest, coll. V.
Hasyagar.
Description:
Dimension: length 51–61 mm, diameter 3–4 mm, segments 144–168.
Pigmentation dark pink at clitellar region, setae lumbricine, prostomium prolobous. Dorsal pores absent, indication present. Male
pores are present on slightly raised papillae, bordered by thickened lips, at
inter-segmental furrow 10/11, aligned to bc setal lines; genital markings present, paired, fairly
large, long whitish papillae, anterior to male pores, in segment 10 (Figure 1).
Genital glands absent. Female pores indistinct. Spermathecal pores paired, at
inter-segmental furrow 7/8 below cd setal lines,
close to c. Septa 5/6–7/8 muscular. Gizzards 4 in segments 12–15. Testis
sacs paired, large irregular-shaped, anterior portion constricted by septum
9/10; vas deferens loosely coiled, entering prostate directly at median side.
Prostates glandular, flat, sessile, circular (Figure 2); prostatic capsule
circular. Spermathecae paired in segment 8, ampulla ovoid, each with short,
lightly coiled duct, penetrating septum 7/8, ectal
end lightly thickened (Figure 3); atrium absent. Ovisacs present in
segments 12–13, slightly projecting to segment 14.
Ingesta: Mainly colloids of soil, tiny
mineral particles, very few strands of rootlets and barks.
Distribution
India:
Karnataka: Nanjavalli and Eduvani
in Shivamogga district (present records), Bangalore (Bengaluru); Andhra
Pradesh, Maharashtra, Kerala, and Tamil Nadu (Figure 4).
Elsewhere:
Philippines.
Drawida impertusa was
collected and reported for the second time from Karnataka state of southern
Peninsular India. It is one among the 3% of native peregrine species reported
from the Western Ghats and western coast plains of India (Narayanan et al.
2016, 2020). Nearly 16 species from the genus Drawida
were reported from Karnataka (Stephenson 1917, 1920, 1923; Rao 1921; Gates 1958,
1965; Blanchart & Julka
1997, 2013; Mandal et al. 2013; Harish et al. 2018a,b; Mubeen & Hatti
2020). D. impertusa resembles D. barwelli but lacks dorsal pores and having a pair of
genital markings. Earlier the species was reported from Bangalore in Karanataka state (Gates 1965). Apart from Karnataka it has
been reported from Andhra Pradesh (Tirupati), Maharashtra (Victoria Gardens –
Mumbai), Kerala (Kanjikode, Karumadi,
Thiruvalla, and Vandiperiyar)
and Tamil Nadu (Coimbatore forest division) states of India (Michaelsen 1910; Stephenson 1920, 1924; Aiyer
1929; Gates 1965; Kathireswari et al. 2005, 2008;
Blakemore et al. 2014; Narayanan et al. 2016). Outside India it was sampled
from diverse habitats like garden, hills, rotting tree, sea-shore and
considered as introduced species in Philippines (Blakemore 2012). But present
specimen was collected from the semi-evergreen forest and paddy fields. D. impertusa is an endogeic
species and analyses of the ingesta of the present
specimens agrees with the findings of Gates (1965). Several areas of Karnataka
state are still unexplored in terms of earthworm fauna. Therefore, additional
intensive survey may discover a few of the undescribed species of the genus Drawida from the state.
For figures &
images - - click here for full PDF
References
Aiyer, K.S.P.
(1929). An account of the Oligochaeta of Travancore. Records
of the Indian Museum 31(1): 13–76.
Blakemore, R.J. (2012). Cosmopolitan earthworms – an
eco-taxonomic guide to the peregrine species of the world, 5th
edition. VermEcology Solutions, Yokohama, Japan,
850 pp.
Blakemore, R.J., S. Lee & H. Y. Seo
(2014). Reports of Drawida (Oligochaeta: Moniligastridae)
from far East Asia. Journal of Species Research 3(2): 127–166. https://doi.org/10.12651/JSR.2014.3.2.127
Blanchart, E. &
J.M. Julka (1997). Influence
of forest disturbance on earthworm (Oligochaeta)
communities in the Western Ghats (South India). Soil biology and
Biochemistry 29(3-4): 303–306.
Bourne, A.G. (1886). On Indian earthworms - Part I. Preliminary
notice of earthworms from the Nilgiris and Shevaroys. Proceedings of the Scientific Meetings of the
Zoological Society of London pp.662–672.
Gates, G.E. (1937). Indian earthworms. I. The genus Pheretima. Records of the Indian Museum
39(2): 175–212.
Gates, G.E. (1940a). Indian earthworms. XII. The genus Hoplochaetella. Records of the Indian Museum 42(2): 199–252.
Gates, G.E. (1940b). Indian earthworms. VIII–XI. Records of the
Indian Museum 42(1): 115–143.
Gates, G.E. (1942). Notes on various peregrine earthworms. Bulletin
of the Museum of the Comparative Zoology at Harvard College 89(3): 61–144.
Gates, G.E. (1945). On some Indian earthworms II. Journal of the
Royal Asiatic Society Bengal 11: 54–91.
Gates, G.E. (1958). On Indian and Burmese earthworms of the genus Glyphidrilus. Records of the Indian Museum
53(1&2): 53–66. (For the year 1955).
Gates, G.E. (1965). On peregrine species of the Moniligastrid
earthworm genus Drawida Michaelsen, 1900. Annals and Magazine of Natural History
series 13(8): 85–93.
Harish, K.T.S., K.S. Sreepada, S.P. Narayanan
& J.W. Reynolds (2018a). Megadrile earthworms (Annelida: Oligochaeta) around Udupi Power Corporation Limited (UPCL),
Udupi District, Karnataka, South-West Coast of India. Megadrilogica
23(5): 80–91.
Harish, K.T.S., M. Siddaraju, C.H.K. Bhat
& K.S. Sreepada (2018b). Seasonal
distribution and abundance of earthworms (Annelida: Oligochaeta)
in relation to the edaphic factors around Udupi Power Corporation Limited
(UPCL), Udupi District, South-Western Coast of India. Journal of Threatened
Taxa 10(3):11432–11442. https://doi.org/10.11609/jott.3806.10.3.11432-11442
Hasyagar, V., S.P.
Narayanan, K.S. Sreepada & J.W. Reynolds (2021). Amynthas alexandri Beddard, 1901(Clitellata: Megascolecidae) a new addition to the earthworm fauna of
Karnataka state, Southern India. Megadrilogica 26(3):
43–48.
Hatti, S.S. (2013). Taxonomical studies on earthworm species of
Gulbarga city, Karnataka, India. Indian Journal of Applied Research
3(7): 34–38.
Julka, J.M.
(1988). The Fauna of India and Adjacent Countries. Megadrile Oligochaeta (Earthworms). Haplotaxida: Lumbricina: Megascolecoidea: Octochaetidae.
Zoological Survey of India, Calcutta, 400 pp.
Julka, J.M.
(1990). Annelida, pp 57–64. In: Jairajpuri, M.S.
(ed.) Collection and preservation of animals. Zoological Survey of
India, Calcutta, 246 pp.
Julka, J.M., E. Blanchart & L.C. Lardy (2004). New genera
and new species of earthworms (Oligochaeta: Octochaetidae) from Western Ghats, South India. Zootaxa 486: 1–27.
Kale, R.D. & N. Karmegam (2010). The role of
earthworms in tropics with emphasis on Indian ecosystems. Applied and
Environmental Soil Science: 2010: 1–16. http://doi.org/10.1155/2010/414356
Kathireswari, P., R. Jeyaraaj & I.A. Jeyaraj
(2005). Distribution and diversity of earthworm resources in Kanjikode, Palakkad district, Kerala state, India. Pollution
Research 24: 117–120.
Kathireswari, P., J.M. Julka & J. Ramasamy (2008).
Biodiversity of earthworm species of Coimbatore forest division, the Western
Ghats, Tamil Nadu, India. Megadrilogica 12(8):
120–124.
Mandal, C.K., S. Mitra & S. Dhani (2013). Annelida: earthworm, In: Fauna
of Karnataka, State Fauna. Zoological Survey of India, Kolkata. Series 21:
33–38.
Michaelsen, W. (1910). Die Oligochäten fauna der vorderindisch-ceylonischen
region. Abdruck Verhandelingen
der Naturwissenschaftlichen Vereins
zu Hamburg 19(5): 1–108.
Michaelsen, W. (1921).
Oligochätenvomwestlichen Vorderindien und ihre Beziehungen zur Oligochätenfauna von Madagaskar
und den Seychellen. Jahrbuch
der hamburgischenwissenschaftlichen Anstalten 38: 27–68.
Michaelsen, W. (1922). Oligochaten aus dem Rijks-Museum ban Natuurlijke Histoire zu Leiden. Capita Zoological 1(3): 1–67.
Mubeen, H. & S.S. Hatti (2018). Earthworm’s
diversity of Koppal district with the updated
information on genus Thatonia of
Hyderabad-Karnataka region, Karnataka, India. Journal of Asia-Pacific
Biodiversity 11: 482–493.
Mubeen, H. & S.S. Hatti (2020). Diversity
and distribution of earthworms of Yadgir district in
relation to the soil chemical parameters of their habitats pp. 239–258. In:
Joshi, P.C., N. Joshi, B.N. Pandey & D.K. Mansotra
(eds.). Ecology and Biodiversity. Today & Tomorrow’s Printers
and Publishers, New Delhi, 390 pp.
Narayanan, S.P., S. Sathrumithra, G.
Christopher, A.P. Thomas & J.M. Julka (2016). Checklist
of the earthworms (Oligochaeta) of Kerala, a
constituent of Western Ghats biodiversity hotspot, India. Zootaxa
4193(1): 117–137. http://doi.org/10.11646/zootaxa.4193.1.5
Narayanan, S.P., R. Paliwal, S. Kumari, S. Ahmed, A.P. Thomas & J.M. Julka (2020). Annelida: Oligochaeta,
pp. 87–102. In: Faunal Diversity of
Biogeographic Zones of India: Western Ghats. Zoological Survey of India,
Kolkata, 744 pp.
Padashetty, S. &
M. Jadesh (2014). A
preliminary survey of earthworm species composition and distribution in the
north Karnataka region, Gulbarga, Karnataka. International Letters of
Natural Sciences, 27: 54–60.
Rao, C.R.N. (1921). On the anatomy of some new species of Drawida. Annals and Magazine of Natural History
Series 9, 8(47): 496–536.
Rao, C.R.N. (1922). Some new species of earthworms belonging to the
genus Glyphidrilus. Annals and Magazine of
Natural History Series 9, 9: 51–68.
Reynolds, J.W. & M.J. Wetzel. (2020). Nomenclatura Oligochaetologica –
a catalogue of names, descriptions and type specimens. Editio
Secunda. https://www.inhs.illinois.edu/people/mjwetzel/nomenoligo Accessed: 13 June 2020.
Siddaraju, M., K.S. Sreepada, & J.W. Reynolds (2010). Checklist
of earthworms (Annelida: Oligochaeta) from Dakshina Kannada, Karnataka South West India. Megadrilogica 14(5): 65–75.
Stephenson, J. (1917). On a collection of Oligochaeta
from various parts of India and further India. Records of the Indian Museum
13: 353–416.
Stephenson, J. (1920). On a collection of Oligochaeta
from the lesser known parts of India and from Eastern Persia. Memoirs of the
Indian Museum 7(3): 191–261.
Stephenson, J. (1921). Oligochaeta from
Manipur, the Laccadive Islands, Mysore, and other parts of India. Records of
the Indian Museum 22(5): 745–768.
Stephenson, J. (1923). The Fauna of British India,
including Ceylon and Burma – Oligochaeta. Taylor and
Francis, London, 518 pp.
Stephenson, J. (1924). On some Indian Oligochaeta,
with a description of two new genera of Ocnerodrilinae.
Records of the Indian Museum 26: 317–365.
Stephenson, J. (1925). On some Oligochaeta
mainly from Assam, South India and the Andaman Islands. Records of the
Indian Museum 27: 43–73.