Collection Summary
Lithobates catesbeianus (American Bullfrog) has a total of 538 valid, non-duplicated collections representing 114 counties and 314 localities. There are a total of 191 collectors and 330 collection dates for the species. This results in a total of 360 expeditions for the species, a measure of unique date / collector(s) combinations. The earliest collection year for the species in Missouri is 1885 and its most recent collection year is 2019. The earliest and latest collection dates (independent of earliest and most recent collection years) are January 13 and December 7, respectively. If you have a new record to report, read the New Records section of the FAQ.
Collection Summary by County
| County | Localities | Collections | Collectors | Dates | Expeditions | Earliest Year | Latest Year | |
|---|---|---|---|---|---|---|---|---|
 | Adair | 1 | 1 | 2 | 1 | 1 | 1941 | 1941 |
| Andrew | 1 | 1 | 1 | 1 | 1 | 1967 | 1967 |
| Atchison | 3 | 3 | 4 | 3 | 3 | 1985 | 1991 |
| Audrain | 5 | 6 | 4 | 5 | 5 | 1941 | 2010 |
| Barry | 2 | 5 | 2 | 3 | 3 | 1930 | 1959 |
| Barton | 5 | 6 | 5 | 5 | 5 | 1967 | 2018 |
| Bates | 2 | 2 | 3 | 2 | 2 | 1988 | 1991 |
| Benton | 1 | 1 | 1 | 1 | 1 | 1991 | 1991 |
| Bollinger | 3 | 5 | 4 | 4 | 4 | 1909 | 1989 |
| Boone | 7 | 25 | 7 | 8 | 8 | 1945 | 2013 |
| Buchanan | 1 | 1 | 1 | 1 | 1 | 1986 | 1986 |
| Butler | 6 | 18 | 7 | 11 | 12 | 1899 | 1995 |
| Caldwell | 1 | 1 | 1 | 1 | 1 | 1986 | 1986 |
| Callaway | 5 | 5 | 4 | 5 | 5 | 1941 | 2018 |
| Camden | 4 | 5 | 5 | 4 | 5 | 1955 | 1985 |
| Cape Girardeau | 4 | 7 | 4 | 5 | 5 | 1941 | 1996 |
| Carroll | 1 | 1 | 1 | 1 | 1 | 1982 | 1982 |
| Carter | 5 | 13 | 10 | 7 | 8 | 1930 | 1963 |
| Cass | 1 | 1 | 1 | 1 | 1 | 1983 | 1983 |
| Cedar | 1 | 2 | 1 | 1 | 1 | 1982 | 1982 |
| Chariton | 2 | 2 | 3 | 2 | 2 | 1992 | 2016 |
| Christian | 1 | 1 | 1 | 1 | 1 | 1973 | 1973 |
| Clark | 2 | 2 | 1 | 2 | 2 | 1960 | 1961 |
| Clay | 10 | 12 | 10 | 12 | 12 | 1909 | 1982 |
| Clinton | 2 | 2 | 2 | 2 | 2 | 1960 | 1962 |
| Cole | 1 | 1 | 1 | 1 | 1 | 1997 | 1997 |
| Cooper | 2 | 3 | 4 | 2 | 2 | 1929 | 1956 |
| Crawford | 4 | 4 | 3 | 4 | 4 | 1965 | 1971 |
| Dade | 2 | 2 | 2 | 2 | 2 | 1982 | 2015 |
| Dallas | 1 | 2 | 2 | 1 | 1 | 2000 | 2000 |
| Daviess | 1 | 1 | 1 | 1 | 1 | 1982 | 1982 |
| De Kalb | 1 | 1 | 2 | 1 | 1 | 1941 | 1941 |
| Dent | 3 | 30 | 5 | 5 | 6 | 1909 | 1941 |
| Douglas | 1 | 1 | 2 | 1 | 1 | 2007 | 2007 |
| Dunklin | 1 | 1 | 2 | 1 | 1 | 1995 | 1995 |
| Franklin | 6 | 10 | 7 | 6 | 6 | 1932 | 1972 |
| Gasconade | 2 | 2 | 4 | 2 | 2 | 1941 | 1989 |
| Gentry | 1 | 1 | 3 | 1 | 1 | 1992 | 1992 |
| Greene | 3 | 3 | 3 | 3 | 3 | 1930 | 2018 |
| Grundy | 2 | 2 | 4 | 2 | 2 | 1941 | 1964 |
| Harrison | 3 | 3 | 4 | 3 | 3 | 1992 | 2014 |
| Henry | 2 | 2 | 3 | 2 | 2 | 1991 | 2007 |
| Hickory | 1 | 1 | 2 | 1 | 1 | 1992 | 1992 |
| Holt | 3 | 4 | 2 | 3 | 3 | 1953 | 2019 |
| Howard | 4 | 7 | 6 | 4 | 7 | 1967 | 2002 |
| Howell | 1 | 2 | 1 | 2 | 2 | 1932 | 1932 |
| Iron | 3 | 3 | 3 | 3 | 3 | 1941 | 1963 |
| Jackson | 16 | 48 | 6 | 17 | 17 | 1909 | 1978 |
| Jasper | 3 | 5 | 4 | 4 | 4 | 1931 | 2012 |
| Jefferson | 3 | 3 | 1 | 1 | 1 | ||
| Johnson | 21 | 58 | 29 | 36 | 40 | 1908 | 1997 |
| Knox | 1 | 2 | 2 | 1 | 1 | 1941 | 1941 |
| Laclede | 1 | 1 | 1 | 1 | 1 | 1983 | 1983 |
| Lafayette | 2 | 3 | 2 | 2 | 2 | 1962 | 1973 |
| Lawrence | 5 | 5 | 4 | 5 | 5 | 1935 | 2018 |
| Lewis | 1 | 4 | 1 | 2 | 2 | 1996 | 1996 |
| Lincoln | 2 | 3 | 4 | 2 | 3 | 1941 | 1967 |
| Linn | 2 | 2 | 2 | 2 | 2 | 1980 | 1980 |
| Livingston | 1 | 1 | 1 | 1 | 1 | 1982 | 1982 |
| Macon | 1 | 1 | 1 | 1 | 1 | 1992 | 1992 |
| Madison | 4 | 4 | 8 | 4 | 4 | 1935 | 2009 |
| Maries | 1 | 1 | 1 | 1 | 1 | 1988 | 1988 |
| Marion | 1 | 3 | 1 | 1 | 1 | 1947 | 1947 |
| McDonald | 2 | 3 | 3 | 3 | 3 | 1906 | 1944 |
| Mercer | 1 | 1 | 1 | 1 | 1 | 1983 | 1983 |
| Miller | 6 | 9 | 7 | 6 | 6 | 1941 | 2006 |
| Mississippi | 1 | 1 | 1 | 1 | 1 | 1986 | 1986 |
| Moniteau | 1 | 1 | 2 | 1 | 1 | 1999 | 1999 |
| Monroe | 2 | 2 | 2 | 2 | 2 | 2000 | 2019 |
| Montgomery | 3 | 3 | 5 | 3 | 3 | 1932 | 1991 |
| Morgan | 4 | 5 | 4 | 4 | 4 | 1939 | 1969 |
| New Madrid | 1 | 1 | 1 | 1 | 1 | 1932 | 1932 |
| Newton | 5 | 7 | 5 | 6 | 6 | 1935 | 2016 |
| Nodaway | 1 | 1 | 2 | 1 | 1 | 2006 | 2006 |
| Oregon | 3 | 3 | 3 | 3 | 3 | 1939 | 1973 |
| Osage | 4 | 5 | 3 | 4 | 4 | 1961 | 2017 |
| Ozark | 6 | 9 | 10 | 8 | 8 | 1902 | 2014 |
| Pemiscot | 2 | 3 | 1 | 2 | 2 | 1934 | 1986 |
| Perry | 2 | 2 | 2 | 2 | 2 | 1988 | 1995 |
| Pettis | 2 | 2 | 3 | 2 | 2 | 1980 | 2002 |
| Phelps | 4 | 5 | 4 | 4 | 4 | 1961 | 1995 |
| Pike | 1 | 1 | 2 | 1 | 1 | 2016 | 2016 |
| Platte | 1 | 1 | 1 | 1 | 1 | 2015 | 2015 |
| Polk | 4 | 4 | 2 | 4 | 4 | 1982 | 2015 |
| Pulaski | 2 | 2 | 3 | 2 | 2 | 1981 | 2002 |
| Putnam | 1 | 1 | 1 | 1 | 1 | 1986 | 1986 |
| Ralls | 1 | 1 | 1 | 1 | 1 | 1971 | 1971 |
| Randolph | 1 | 1 | 1 | 1 | 1 | 1994 | 1994 |
| Ray | 3 | 3 | 3 | 3 | 3 | 1959 | 1982 |
| Reynolds | 6 | 9 | 4 | 6 | 6 | 1933 | 1964 |
| Ripley | 2 | 2 | 2 | 2 | 2 | 1941 | 2005 |
| Saint Charles | 4 | 7 | 6 | 6 | 7 | 1962 | 1998 |
| Saint Clair | 2 | 2 | 3 | 2 | 2 | 1991 | 1992 |
| Sainte Genevieve | 1 | 1 | 3 | 1 | 1 | 2004 | 2004 |
| Saint Francois | 1 | 1 | 2 | 1 | 1 | 2007 | 2007 |
| Saint Louis | 3 | 9 | 3 | 5 | 5 | 1885 | 1963 |
| Saline | 1 | 1 | 1 | 1 | 1 | 1929 | 1929 |
| Schuyler | 1 | 1 | 3 | 1 | 1 | 2005 | 2005 |
| Scotland | 1 | 1 | 1 | 1 | 1 | 1986 | 1986 |
| Scott | 2 | 2 | 3 | 2 | 2 | 2007 | 2007 |
| Shannon | 5 | 13 | 7 | 7 | 7 | 1930 | 1963 |
| Shelby | 1 | 1 | 1 | 1 | 1 | 1985 | 1985 |
| Stoddard | 5 | 13 | 9 | 8 | 8 | 1909 | 1973 |
| Stone | 1 | 1 | 1 | 1 | 1 | 1993 | 1993 |
| Sullivan | 1 | 1 | 1 | 1 | 1 | 2005 | 2005 |
| Taney | 3 | 4 | 4 | 3 | 3 | 1947 | 2007 |
| Texas | 2 | 3 | 1 | 2 | 2 | 1941 | 1941 |
| Vernon | 4 | 4 | 10 | 4 | 4 | 1982 | 2002 |
| Warren | 1 | 2 | 2 | 1 | 1 | 1975 | 1975 |
| Washington | 1 | 2 | 2 | 2 | 2 | 1909 | 1942 |
| Wayne | 6 | 12 | 8 | 9 | 9 | 1931 | 1950 |
| Webster | 1 | 3 | 1 | 2 | 2 | 1932 | 1932 |
| Worth | 1 | 2 | 2 | 1 | 1 | 1985 | 1985 |
| Wright | 4 | 5 | 7 | 4 | 4 | 1908 | 2016 |