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Legend
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Exact locality, based on specimen(s) or photographs examined |
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Exact locality, based on literature record believed valid |
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Approximate locality based on specimen(s) or photographs examined |
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Approximate locality based on literature record believed valid |
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County record only, based on specimens or photographs examined |
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County record only, based on literature report believed valid |
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Type locality |
| ? | Questionable and/or problematic record |
Taxonomy:
One subspecies of
Diamond-backed Watersnake (N. r. rhombifer,
Northern Diamond-Backed Watersnake) is recognized in the United States (Crother,
2012). Two others (N.
r. blanchardi and N. r. werleri)
occur in Mexico (Brandley et al. 2010).
Distribution:
The Diamond-backed Watersnake is known from both Mississippi and
Tennessee River drainages in West Tennessee.
It has also been found in the Cumberland River drainage in Stewart
and Montgomery counties in Middle Tennessee.
Museum Records
by Counties: Benton—APSU
13568.
Chester—APSU
19311.
Decatur—KU 3001.
Dyer—USNM 30694.
Fayette—APSU 16907, 16909.
Gibson—APSU
3338.
Hardeman—APSU 12283,
16876; LSUMZ 34932-34934.
Hardin—UTKVZC 4208.
Haywood—APSU 15744-15748;
AUM 21634.
Henry—MSU 836; UMMZ 53530.
Lake—APSU 2169, 2172, 2180, 2185, 2187-2189, 2192, 12882, 12883, 12891,
13509, 13511-13516, 13575, 13576, 13578, 13580, 13588-13591, 14616, 15323; AUM
1908; KU 21800; MoSU R441, R443, R444, R788-R792, R2578, R2579, R2675,
R2921-R2925, R3349, R3350, R3489, R3490, R3690-R3694, R4264, R780B; NCSM 8194,
8733-8737; SIU R-964, R-1110, R-1321, R-1879; TTU 278, 468-471, 691; UIMNH 1157;
UTKVZC 4711, 4811, 4692-4709.
Lauderdale—UTKVZC 3871, 3874, 3928.
Montgomery—APSU 17684.
Obion—AMNH R-71231-R-71236; APSU
2124, 2161, 2162, 2164, 2167, 2186, 5252, 13510, 13573, 13577, 13579,
13581-13587; FLMNH 13072-1, 13072-2; KU 82776-82778; LSUMZ 43977, 43982; MoSU
R260, R438, R440, R779; MSU 870, 1277; SIU R-833, R-1156, R-1322, R-1600,
R-1609; UL 4278-4282; UMMZ 53196.
Shelby—APSU 11905, 11906, 12273, 12274, 12380, 12383, 12387, 12879,
12884, 12893, 12900, 12901, 13564-13567, 13569-13572, 15715, 15716, 15740-15743,
15941-15945, 16181, 16902-16904, 16906, 17522, 17875, 17879; FMNH 26002; MSU
1276; UMMZ 77675.
Stewart—APSU 292, 608, 927, 4346; UL 3714.
Weakley—APSU 13574.
Literature
Sources by Counties: Benton—Parker
(1948), Gibbons and Dorcas (2004).
Chester—Butterfield
et al. (2012).
Decatur—Gibbons and Dorcas
(2004).
Dyer—Blanchard (1922),
Gibbons and Dorcas (2004).
Hardeman—Parker (1948), Norton (1971), Norton and Harvey (1975), Gibbons
and Dorcas (2004).
Hardin—Gibbons and Dorcas
(2004). Haywood—Gibbons
and Dorcas (2004), Stanley (2005).
Henry—Gibbons and Dorcas (2004).
Lake—Parker (1948), Hess (1966),
Mount and Schwaner (1970), Scudder and Burghardt (1983), Burkett and Huggins
(1994), Gibbons and Dorcas (2004).
Lauderdale—Gibbons and Dorcas (2004).
Obion—Cagle
(1937), Parker (1937a, 1948), Burkett and Huggins (1994), Gibbons and Dorcas
(2004), Goodman and Monks (2006).
Shelby—Parker (1941, 1948), Hassell (1961), Eubanks and Pecor (2003),
Gibbons and Dorcas (2004).
Stewart—Gibbons and Dorcas (2004).
Questionable
and/or Erroneous Records:
None.
Protection
Status:
None.
Posted: 22 September 2008
Latest Revision: 15 February 2013
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