Macrostomum tuba Graff, 1882 | 1932 or earlier | | | pond near the University of Virginia. |
Microdalyellia ruebushi Luther, 1955 | 1937 or earlier | | | Virginia, Tümpel in der Umgebung der University of Virginia, im Frühling, Herbst und Winter (Ruebush). |
Dalyellia abursalis Ruebush, 1937 | 1934-1936 | | | collected from the University Golf Course Pond, a small quiet pond in the Western part of the University grounds. Some 150 examples were examined, taken from collections made in the spring and fall of 1934, winter, spring, and fall of 1935, and wint |
Dalyellia virginiana Ruebush, 1937 | 1934-1936 | | | collected from the reflection pool of the University of Virginia, a small quiet pond located at the side of the gymnasium. 200 ex. of this species examined, taken in the spring and fall of 1934, winter, spring and fall of 1935, winter 1936. |
Dalyellia aspinosa Ruebush, 1937 | 1935 | | | small temporary pool beside the C. and O. Railway track about one mile west of the University of Virginia. |
Dalyellia aspinosa Ruebush, 1937 | 1935 | | | small still water pond on Route 29 some two miles south of the University of Virginia. |
Macrostomum virginianum Ferguson, 1937 | 1937 or earlier | | | collected from small stream on University of Virginia campus. |
Microdalyellia rossi virginiana (Ruebush, 1937) | 1933-1935 | | | 150 examples from a small pond about a mile and a half southwest of the University in the fall of 1933, winter, spring and fall of 1934, and winter and spring of 1935 |
Microdalyellia rossi minima Ruebush, 1937 | 1933-1935 | | | 50 examples from a small swamp about a half mile west of the University in the fall of 1933, winter, spring and fall of 1934 |
Microstomum bispiralis Stirewalt, 1937 | 1937 or earlier | | | Freshwater pools near the University of Virginia |