Elatodiscophrya hochi (Matthes, 1954)

Dovgal, Igor & Pešić, Vladimir, 2012, Suctorian ciliates (Ciliophora, Suctorea) as epibionts of stream-dwelling aquatic beetles (Coleoptera) and water mites (Acari: Hydrachnidia) in the southwestern Palaearctic region, Zootaxa 3166, pp. 34-40 : 37

Elatodiscophrya hochi (Matthes, 1954)

( Fig. 3 )

New records. BOSNIA AND HERCEGOVINA: W Hercegovina, river Lištica near Široki Brijeg, 43°21'N; 17°37'E, 12.xi.2006, on Hydraena sp.; TURKEY: Artvin Province, Çiftekop stream, a tributary of Çoruh river, 28.7.2005, on Hydraena sp.

Diagnosis. Suctorian with disc-shape, flattened cell. Cell located on a very broad, bed-shaped stalk, in such a way that the cell is covered by widening from one side only. Clavate tentacles are few in number and evenly distributed along the upper edge of the cell and not united in bundles. Macronucleus band-like, sometimes branched. There are 3 or 4 contractile vacuoles positioned near the edge of cell.

Measurements: Cell length 19–57 μm (41–58 μm after Matthes 1954a), width 26–78 μm (61–88 μm after Matthes 1954a), stalk length 8–23 μm, length of macronucleus 17–29 μm.

Remarks. New for Bosnia and Hercegovina and Turkey.

Distribution. Germany ( Matthes 1954a, Matthes & Plachter 1975, on Helophorus flavipes ), Balkan (present paper, on Hydraena sp.), Turkey (present paper, on Hydraena sp.).

Figures

FIGURES 1 – 7. 1 = Setodiscophrya deplanata (Matthes, 1954), from Hydraena sp. (× 640); 2 = Discophrya helmidis Matthes, 1954, from Hydraena sp. (× 640); 3 = Elatodiscophrya hochi (Matthes, 1954), from Hydraena sp. (× 640); 4 = Periacineta buckei (Kent, 1881), from Hydraena sp. (× 640); 5 = Discophrya lichtensteinii (Claparede & Lachmann, 1859), from Torrenticola barsica (× 640); 6 = Acineta sp. from Torrenticola barsica (× 640); 7 = Acineta persiensis Dovgal & Pešić, 2007, from Protzia sp. (× 640).