First report of five monogonont rotifers from Jammu, J&K UT, India, with remarks on their distribution

Rotifers are microscopic metazoans which are generally predominant in freshwater ecosystems both in terms of species richness and species abundance. Despite their small size, they are crucial in maintaining ecological balance. In the present investigation, plankton samples collected during February 2019–January 2021 from two lentic water sources of Jammu region of Jammu & Kashmir revealed 58 species of rotifers belonging to 16 families, among which five species of monogonont rotifers from three genera were recorded to be the first reports from this region. These include three species from family Lecanidae: Lecane arcula, L. inermis, L. (Monostyla) unguitata; one species from family Brachionidae: Anuraeopsis coelata; and species Pompholyx sulcata of family Testudinellidae. Among these five monogonont species, Anuraeopsis coelata shows pantropical distribution, Lecane unguitata is a palaeotropical species, while other three are cosmopolitan in occurrence. Furthermore, comments are made on the diagnosis, seasonality, biogeographical, and ecological distribution of these species.