Bordnamonas tropicana Larsen et Patterson 1990

Aydin, Esra Elif & Lee, Won Je, 2012, Free-living Heterotrophic Flagellates from Intertidal Sediments of Saros Bay, Aegean Sea (Turkey), Acta Protozoologica 51 (2), pp. 119-137 : 123-124

Bordnamonas tropicana Larsen et Patterson 1990

( Figs 1e , 2f )

Observation: Cells are 7 to 12 μm long and slightly flattened. The cells are anteriorly narrow and posteriorly broad. Two slightly thickened flagella are similar in length, insert subapically in the right ventral side of the cell and are about the cell length. The flagella are not acronematic. The anterior flagellum beats stiffly in a sigmoid arc and the posterior flagellum curves near its flagellar insertion and is directed posteriorly. The cells glide or skid rapidly close to the substrate. Description based on observations of three cells.

Remarks: Bordnamonas tropicana has been reported from marine sites worldwide with cell lengths of 4–20 µm ( Larsen and Patterson 1990; Vørs 1992a, b; Patterson et al. 1993; Ekebom et al. 1996; Patterson and Simpson 1996; Lee and Patterson 1998, 2000; Lee 2001, 2002; Al-Qassab et al. 2002). Cell appearance is entirely consistent with the descriptions of Larsen and Patterson (1990) and Lee and Patterson (2000). This species resembles Bodo curvifilus Griessmann 1913 in that the anterior flagellum is held anteriorly in a curve, but can be easily distinguished by the swimming pattern, the thickness of the flagella and the anterior mouth visible by light microscope. This species is also distinguished from other bodonids by the swimming pattern and the thickness of the flagella.

Figures

Fig. 1. a – Actinomonas mirabilis/Pteridomonas danica; b – Amastigomonas mutabilis; c – Ancyromonas micra; d – Bicosoeca conica; e – Bordnamonas tropicana; f – Caecitellus parvulus; g – Cafeteria minuta; h – Cafeteria roenbergensis; i – Cyranomonas australis; j – Developayella elegans; k – Discocelis saleuta; l – Goniomonas amphinema; m – Goniomonas pasifica; n – Kiitoksia ystava; o – Dinema platysomum; p – Anisonema acinus; q – Heteronema exaratum; r – Heteronema ovale; s – Kathablepharis remigera; t – Notosolenus canellatus; u – Massisteria marina; v – Metromonas grandis; w – Neobodo designis; x – Neobodo saliens; y – Percolomonas similis. Scale bar: 10 μm for all figures.

Fig. 2. a – Actinomonas mirabilis/Pteridomonas danica; b – Amastigomonas mutabilis; c – Ancyromonas micra; d – Bicosoeca conica; e – Caecitellus parvulus, note the mouth on the left-hand side; f – Bordnamonas tropicana; g – Cafeteria roenbergensis; h – Cyranomonas australis; i – Developayella elegans; j – Discocelis saleuta; k – Goniomonas amphinema; l – Cafeteria minuta, feeding cell; m – Anisonema acinus, dorsal view, note the ingestion organelle; n – Dinema platysomum, ventral view showing surface striations; o – Goniomonas pacifica; p – Heteronema exaratum, ventral view, general appearance of cell; q – Kathablepharis remigera; r – Massisteria marina; s – Neobodo saliens; t – Neobodo designis; u–v – Heteronema ovale, same cell; u – general appearance; v – extended cell. All micrographs are DIC images. Scale bar: 5 μm for all figures.