Family Orthoamphisiellidae (ref. ID; 7423)

[ref. ID; 3890]
The organisms appear tolerant to rapid salinity changes, and react normally to salt concentrations as low as 2%. Reproduction was relatively slow (< 1 fission/day). (ref. ID; 3890)

Cladotricha koltzowii Gajewskaja, 1926 (ref. ID; 3890, 7423) reported author and year? (ref. ID; 191)
Description; There is one row of left marginal cirri, each cirrus with only 3 cilia. There are 1-4 rows of right marginal cirri, more latero-dorsal than ventral, that exhibit slight torsion. Transverse cirri are absent. Frontal cirri are in 2 groups; one longitudinal-oblique row of 5-8 cirri lies parallel to the right marginal, and 2-5 additional cirri are grouped at the extreme anterior end of the ventral surface. A thin anterior lip separated the ventral surface from 3 relatively massive anterior membranelles. The remainder of the membranelles are 2 rows of cilia wide, except along their mediad border, where a partial 3rd row borders the anterior edge of each membranelles. The paroral apparatus consists of 2 simple closely set rows cilia. There are 2-4 macronuclei. (ref. ID; 3890)
The number of long cirral rows and the number of cirri in ventral rows 2-4 distinctly reduced. Cirri composed of only one basal body pair only in the left marginal row L1. Enlarged frontal cirri. (ref. ID; 7423)
Cladotricha variabilis Ruinen, 1938 (ref. ID; 3890) reported author and year? (ref. ID; 191, 7423)
Description; There is one row each of right and left marginal cirri. The frontal cirri are in 2 groups; one longitudinal-oblique group of 4-7 cirri that lies parallel to the right marginal cirri, and 2 arching transverse rows, consisting of 5-8 cirri. The post-buccal cirri are in an oblique row of 5-8 cirri, with an additional row of 1-4 cirri to the left of the anterior end of that row (sometimes absent). Each frontal cirrus contains 4-6 cilia. The dorsal ciliature consists of a short inconspicuous oblique row of ~ 3 cilia adjacent and dorsal to the anterior terminus of the right marginal cirri; an oblique helical "mid-dorsal' series of ~ 10-12 cilia, the last 2 of which are differentiated into caudal cirri with ~ 2 cilia apiece and 1-2 additional cilia; and a terminal caudal cirrus immediately to the observer's left of the longer row. In living ciliates, the cortical cytoplasm is free of visible granulation. The caudal cirri are stiff and vibratile, and protrude nearly vertically. The buccal cavity is ~ 30 um long; the posterior 1/4 is narrow and cylindrical. Most of the paroral apparatus is deep in this posterior section of the buccal cavity. The ciliate is supple, and usually contorted in living state, with the right marginal row of cirri usually twisted ~ 180 degrees. (ref. ID; 3890)