Notosolenus Stokes, 1884 (ref. ID; 4656) reported year? (ref. ID; 1618) or Stokes, 1884 em. Skuja, 1939 (ref. ID; 4950) reported year? (ref. ID; 3517)
Euglenida Butschli, 1884 (ref. ID; 4872)

Synonyum Solenotus Stokes, 1884 (ref. ID; 4950)

[ref. ID; 1618]
Rigid oval; ventral surface convex, dorsal surface with a broad longitudinal groove; flagella anterior; one long, directed anteriorly and vibratile; the other shorter and trailing; fresh water with vegetation. (ref. ID; 1618)

Notosolenus apocamptus Stokes 1884 (ref. ID; 4656, 4872) reported year? (ref. ID; 1618, 3517, 4950)
Description; Oval with broad posterior end. (ref. ID; 1618)
Cell ovate, flattened, anterior end narrowed, posterior end rounded. A broad longitudinal dorsal groove runs along the entire cell. Groove uniform in width from anterior end to the centre of the cell after which it widens progressively and finally fans out to a posterior opening twice as wide as the anterior opening. Transect of groove examined from the anterior end appears obovate and from the posterior end ovate when the dorsal side is up. Cell transect smoothly rounded on both sides of the dorsal groove sides, ventral side flat. Two flagella of unequal length emerge from an ovate flagellar pocket. Anterior flagellum up to 2 times cell length and posterior flagellum about 1/2 the cell length. Cells move by smooth gliding with ventral side against the surface with anterior flagellum stretched. The movement of the anterior flagellum is usually restricted by adhesion to the surface. (ref. ID; 4872)
Measurements; 6-11 um long. (ref. ID; 1618)
Cell length 9.7 um, range 8.2-11.2 um. (ref. ID; 4872)
Notosolenus ostium Larsen & Patterson, 1990 (ref. ID; 4872)
Description; Cell ovate with a prominent dorsal longitudinal groove widening progressively from the anterior towards the posterior. The flagellar pocket is on the right side and the nucleus on the left. Two flagella of unequal length, anterior flagellum 1+1/2 times cell length, held straight forward. Posterior flagellum about one quarter of cell length and trailing directly along the axis of the cell. Cell move by smooth gliding, movement of the anterior flagellum is usually restricted by adhesion to the surface. Four faint longitudinal stripes line the cell surface. (ref. ID; 4872)
Measurements; Cell length 36 um, range 32-40 um. (ref. ID; 4872)
Notosolenus sinuatus Stokes (ref. ID; 1618, 4950)
Description; Posterior end truncate or concave. (ref. ID; 1618)
Measurements; About 22 um long. (ref. ID; 1618)