Collection Summary
Ophisaurus attenuatus (Western Slender Glass Lizard) has a total of 145 valid, non-duplicated collections representing 64 counties and 123 localities. There are a total of 71 collectors and 103 collection dates for the species. This results in a total of 109 expeditions for the species, a measure of unique date / collector(s) combinations. The earliest collection year for the species in Missouri is 1895 and its most recent collection year is 2018. The earliest and latest collection dates (independent of earliest and most recent collection years) are March 3 and October 24, 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 | 1 | 1 | 1 | 1992 | 1992 |
| Audrain | 1 | 1 | 1 | 1 | 1 | 2002 | 2002 |
| Barton | 8 | 8 | 7 | 7 | 7 | 1935 | 2018 |
| Benton | 2 | 2 | 2 | 2 | 2 | 1962 | 2003 |
| Boone | 1 | 1 | 1 | 1 | 1 | 1933 | 1933 |
| Butler | 1 | 1 | 1 | 1 | 1 | ||
| Caldwell | 1 | 1 | 1 | 1 | 1 | 1982 | 1982 |
| Callaway | 5 | 5 | 4 | 4 | 4 | 1982 | 2018 |
| Camden | 1 | 1 | 1 | 1 | 1 | 1931 | 1931 |
| Carter | 2 | 2 | 2 | 2 | 2 | 2001 | 2009 |
| Cass | 2 | 2 | 2 | 2 | 2 | 2004 | 2007 |
| Cedar | 1 | 1 | 1 | 1 | 1 | 2015 | 2015 |
| Chariton | 1 | 1 | 1 | 1 | 1 | 2002 | 2002 |
| Clark | 1 | 1 | 1 | 1 | 1 | 1982 | 1982 |
| Clay | 1 | 1 | 1 | 1 | 1 | 1983 | 1983 |
| Cole | 2 | 2 | 2 | 2 | 2 | 1983 | 1999 |
| Crawford | 3 | 3 | 3 | 2 | 3 | 1965 | 2002 |
| Dade | 5 | 5 | 6 | 4 | 4 | 1974 | 2015 |
| Dallas | 2 | 2 | 2 | 2 | 2 | 2012 | 2018 |
| Dent | 1 | 1 | 1 | 1 | 1 | 1941 | 1941 |
| Franklin | 1 | 1 | 1 | 1 | 1 | 1992 | 1992 |
| Gasconade | 1 | 1 | 1 | 1 | 1 | 1965 | 1965 |
| Gentry | 1 | 1 | 1 | 1 | 1 | 2004 | 2004 |
| Greene | 6 | 6 | 5 | 6 | 6 | 1961 | 2015 |
| Howell | 3 | 4 | 5 | 4 | 4 | 1906 | 2007 |
| Iron | 2 | 3 | 3 | 2 | 2 | 1999 | 2009 |
| Jackson | 5 | 8 | 1 | 5 | 5 | 1936 | 1941 |
| Jasper | 1 | 2 | 2 | 2 | 2 | 1899 | 1899 |
| Jefferson | 5 | 8 | 3 | 3 | 3 | 1897 | 1932 |
| Johnson | 7 | 8 | 5 | 7 | 8 | 1960 | 1992 |
| Lawrence | 1 | 4 | 1 | 1 | 1 | ||
| Lincoln | 2 | 2 | 2 | 2 | 2 | 1981 | 2004 |
| Linn | 1 | 1 | 1 | 1 | 1 | 1996 | 1996 |
| Macon | 1 | 1 | 1 | 1 | 1 | 1992 | 1992 |
| Madison | 1 | 1 | 4 | 1 | 1 | 2009 | 2009 |
| Maries | 1 | 1 | 1 | 1 | 1 | 1982 | 1982 |
| Miller | 2 | 2 | 2 | 2 | 2 | 1974 | 1974 |
| Moniteau | 1 | 1 | 2 | 1 | 1 | 1992 | 1992 |
| Montgomery | 2 | 2 | 4 | 2 | 2 | 1970 | 2009 |
| Newton | 1 | 1 | 1 | 1 | 1 | 1984 | 1984 |
| Oregon | 2 | 3 | 3 | 3 | 3 | 1901 | 1956 |
| Osage | 1 | 1 | 1 | 1 | 1 | 1983 | 1983 |
| Ozark | 1 | 1 | 1 | 1 | 1 | ||
| Perry | 1 | 1 | 1 | 1 | 1 | 1971 | 1971 |
| Pettis | 2 | 2 | 2 | 2 | 2 | 1899 | 1949 |
| Phelps | 2 | 2 | 2 | 2 | 2 | 2011 | 2011 |
| Pike | 3 | 4 | 1 | 2 | 2 | 1995 | 1996 |
| Polk | 3 | 3 | 4 | 3 | 3 | 1971 | 2007 |
| Pulaski | 1 | 2 | 1 | 1 | 1 | ||
| Reynolds | 2 | 2 | 2 | 2 | 2 | 1963 | 1976 |
| Ripley | 1 | 1 | 1 | 1 | 1 | 2008 | 2008 |
| Saint Clair | 1 | 1 | 1 | 1 | 1 | 1941 | 1941 |
| Sainte Genevieve | 1 | 1 | 2 | 1 | 1 | 2011 | 2011 |
| Saint Francois | 1 | 1 | 1 | 1 | 1 | ||
| Saint Louis | 3 | 6 | 4 | 2 | 4 | 1909 | 1909 |
| Stone | 1 | 1 | 1 | 1 | 1 | ||
| Taney | 1 | 1 | 1 | 1 | 1 | 1948 | 1948 |
| Texas | 1 | 1 | 1 | 1 | 1 | 2003 | 2003 |
| Vernon | 1 | 2 | 1 | 2 | 2 | 1987 | 1988 |
| Warren | 2 | 2 | 2 | 2 | 2 | 2018 | 2018 |
| Washington | 1 | 1 | 1 | 1 | 1 | 1989 | 1989 |
| Wayne | 1 | 1 | 2 | 1 | 1 | 1976 | 1976 |
| Webster | 1 | 1 | 2 | 1 | 1 | 1987 | 1987 |
| Wright | 1 | 1 | 1 | 1 | 1 | 1895 | 1895 |