Developayella elegans Tong 1995

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 : 125

Developayella elegans Tong 1995 ( Figs 1j , 2i )

Observation: Cells are oval and 4–6 μm long. The cells have two flagella emerging from a depression in the right anterior part of the cell. Both flagella are about the cell length. In attached cells the anterior flagellum is held in a curve and beats slowly up and down, and the posterior one beats rapidly with a shallow excursion. Move by swimming. Two cells found.

Remarks: Our observations are in agreement with the descriptions of Tong (1995) and Lee and Patterson (2000). When this species attaches to the subtrate it can be easily distinguished from other small flagellates because of its flagellar beating pattern. It has been described from subtropical Australia, England and Korea with the cell length of 3.5–10 μm ( Patterson and Simpson 1996; Tong 1995; Tong 1997a, b; Tong et al. 1998; Lee and Patterson 2000; Al-Qassab et al. 2002; Lee 2001, 2002).

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.