GYRINIDAE
Gyrininae
Enhydrini
Dineutus americanus (L.)  (1,2,4)(8,15, as assimilis Kirby)
D. analis Regimbart  (1)(14, as serrulatus analis Regimbart)
D. carolinus LeConte (1)
D. ciliatus (Forsberg)  (1,4,7,8,9,11,12,15)(4,13, as vittatus Germar)
D. emarginatus (Say)  (1)
D. horni Roberts  (8,15)
D. ? productus Roberts  (1)
Gyrinini
Gyrinus aeneolus LeConte  (1)
G. analis Say  (1)
G. parcus Say  (1,3,4,5,8,11,15)
G. plicifer LeConte  (11)
G. woodruffi Fall  (8,15)
Orectochilini
Gyretes sinuatus LeConte  (1,6,15)(8, as compressus LeConte)
 1.  In OSU Collection - Det. D. C. Arnold
 2.  In OSU Collection - Det. C. A. Frost
 3.  In OSU Collection - Det. R. Hopping
 4.  In OSU Collection - Det. K. F. Schaefer
 5.  In OSU Collection - Det. F. H. Young
 6.  Reported by Babin & Alarie, 2004
 7.  Reported by Hatch, 1930
 8.  Reported by Kondratieff et al., 2005
 9.  Reported by McKinley et al., 1972
10. Reported by Ortenburger & Hatch, 1926
11. Reported by Oygur & Wolfe, 1991
12. Reported by Reisen, 1975
13. Reported by Roberts, 1895
14. Reported by Wood, 1968
15. Reported by Zuellig et al., 2006
3 genera - 13 species