Silvalis jairajpurii
sp.n. with diagonostic compendium and keys to species including one known rare soil
nematode (Nematoda: Dorylaimida) from Sundarban region of South 24 Parganas district,
West Bengal, India
Guha Mahasweta
Res. J. Biotech.; Vol. 19(3); 127-134;
doi: https://doi.org/10.25303/1903rjbt1270134; (2024)
Abstract
Silvalis jairajpurii sp. n., a new dorylaimid nematode under the subfamily Thornenematinae
is described and illustrated in this study. This is found from rhizospheric soil
of paddy in Gosaba block of Sunderban region of South 24 Parganas District of West
Bengal, India. The species is characterised by medium sized body (1.5-1.6 mm) with
sclerotized cheliorhabdions encircling the strong odontostyle, amphidelphic reproductive
system with a very minute vaginal opening terminated by a short blunt, but rounded
tail which show marked differences from other species of the genus. This is a plant
parasite that affects paddy cultivation and rice in our staple food. So, this type
of plant parasite causes economic loss of our country.
The species key of this genus with compandium is also provided. Mylodiscus nanus
is also rare nematode, reported from paddy field rhizospheric zone of Gosaba block,
Sundarbans part of South 24 Parganas, West Bengal of India. It is a predatory nematode.
