Favella serrata (Möbius 1887)

Lorica bell-shaped, 250 (130-350) µm long, oral diameter 100 (85-150) µm, cylindrical in anterior third, posteriorly convex-conical, with hollow, narrow pedicel (Fig 1-6); oral rim denticulate, due to short but numerous teeth (Fig 1-3); suboral annular bulges (Fig 1-6); wall with alveolar structure; cell bell-shaped, posterior end rounded, peduncle attaches axially at the end of the lorica (Fig 1,3).; Oral cavity acentric (Fig 1,8), 25-26 EPks, with 55 µm long cilia.; One ventral kinety anterior with 33 ciliated mono-kinetids, posterior with 11 dikinetids; one posterior kinety of 4 anterior monokinetids and 22 posterior dikinetids; K2 absent; dorsal kinety with 57 dikinetids; dense kinetal field (DKF) with 11 kineties; 24 kineties in the left field, 20 somatic kineties in the right field (Fig 6).; 2 ovoidal macronuclei, 1 micronucleus (Fig 1,6).

No data about infraciliature and nuclear apparatus are available. Species description thus based solely on lorica morphology.

Lorica bell-shaped, cylindrical in anterior third, posteriorly convex-conica, with hollow, narrow pedicel; oral rim denticulate; suboral annular bulge; cell bell-shaped; oral cavity wide; 2 ovoidal macronuclei, 1 micronucleus