The Genera <I>Phacus, Trachelomonas</I> &amp; <I>Strombomonas</I> (Euglenophyta) in Four Districts of West Bengal, India.

Abstract

Thirty six taxa of Euglenophytes belonging to the genera Phacus Dujardin (16 taxa), Trachelomonas Ehrenberg (15 taxa) & Strombomonas Delfandre (5 taxa) have been described and illustrated in this paper. They have been recorded from different eutrophic localities of West Bengal occurring in four districts (Purba Bardhaman, Alipur Duar, Jalpaiguri & Cooch Behar). Following 16 taxa are new records for West Bengal viz. Phacus gigas Da Cunha, Phacus hameli Allorgae and Lefèvre, Phacus onyx Pochmann, Phacus raciborskii Drezepolski, Phacus suecicus Lemmermann, Phacus unguis Pochmann, Trachelomonas armata (E.) Stein var. longispina Playfair, Trachelomonas armata (E.) Stein var. steinii Lemmermann, Trachelomonas bernardi Woloszynska, Trachelomonas cylindrica Ehrenberg, Trachelomonas hispida (Perty) Stein, Trachelomonas sydneyensis Playfair, Trachelomonas volvocina Ehrenberg var. derephora Conrad, Trachelomonas volvocinopsis Svirenko, Trachelomonas volzii Lemm. var. pellucida Playfair and Strombomonas acuminata (Schmarda) Deflandre var. deflandriana Conrad & following 11 taxa are new additions to India viz. Phacus acuminatus Stokes var. megaparamylica (Roll) Huber-Pestalozzi, Phacus suecicus Lemm. var. oidion Pochmann, Trachelomonas dangeardii var. nana (Balech) Tell & Couté, Trachelomonas gracillima Bal.-Dast., Trachelomonas lismorensis Playfair var. mirabilis Playfair, Trachelomonas mirabilis Swir. var. obesa (Messik.) Conrad, Trachelomonas raciborskii Woloszynska, Strombomonas australica (Playfair) Deflandre var. annulata Yamagishi, Strombomonas ensifera (Daday) Deflandre var. brasiliensis Uherkovich, Strombomonas napiformis (Playfair) Deflandre var. brevicollis (Playfair) Deflandre f. minor Conforti & Joo and Strombomonas verrucosa (Daday) Deflandre var. verrucosa Deflandre.