Thought I would go ahead and update my list so far this year, now in July. Something of a goal this year has been to observe as many herp species in Arkansas as possible. I don't know that I've exactly gone out of my way to pick up observations, but it's not a bad list so far. A few others I should be able to fill in without too much effort with a couple of short trips.
SNAKES -- 25 species
Southern Copperhead...26-MAR...Miller Co.
Western Cottonmouth...27-MAR...Hempstead Co.
Western Pigmy Rattlesnake...13-JUN...Carroll Co.
Eastern Racer...27-MAR...Hempstead Co.
Prairie Kingsnake...29-MAR...Hempstead Co.
Speckled Kingsnake...27-MAR...Sevier Co.
Milk Snake...29-MAR...Scott Co.
Eastern Coachwhip...21-APR...Laflore Co., OK (...yeah, just over the way)
Rough Green Snake...4-MAY...Union Co.
Western Rat Snake...26-MAR...Miller Co.
Flathead Snake...28-APR...Carroll Co.
Western Worm Snake...27-MAR...Hempstead Co.
Ringneck Snake...10-MAR...Franklin Co.
Plainbelly Water Snake...10-MAR...Franklin Co.
Broad-banded Water Snake...04-MAY...Union Co.
Midland Water Snake...22-MAR...Benton Co.
Gulf Crayfish Snake...25-MAR...Little River Co.
Midland Brown Snake...02-JUN...Benton Co.
Redbelly Snake...15-JUN...Benton Co.
Western Ribbon Snake...26-MAR...Miller Co.
Eastern Garter Snake...??-APR...Benton Co.
Rough Earth Snake...05-MAY...Union Co.
Western Earth Snake...29-MAR...Scott Co.
Western Mud Snake...04-MAY...Union Co.
Eastern Hognose Snake...29-MAR...Scott Co.
LIZARDS -- 6 species
Eastern Collared Lizard...28-APR...Carroll Co.
Eastern Fence Lizard...10-MAR...Franklin Co.
Northern Green Anole...27-MAR...Howard Co.
Five-lined Skink...10-MAR...Franklin Co.
Ground Skink...26-MAR...Miller Co.
Prairie Racerunner...05-MAY...Union Co.
TURTLES -- 9 species
Common Snapping Turtle...05-MAR...Benton Co.
Common Map Turtle...22-MAR...Benton Co.
Ouachita Map Turtle...22-MAR...Benton Co.
Eastern River Cooter...19-JUN...Garland Co.
Three-toed Box Turtle...04-MAY...Union Co.
Ornate Box Turtle...11-MAY...Benton Co.
Red-eared Slider...22-MAR...Benton Co.
Mississippi Mud Turtle...27-MAR...Howard Co.
Common Musk Turtle...26-MAR...Miller Co.
CROCODILIANS -- 1 species
American Alligator...27-MAR...Sevier Co.
FROGS -- 14 species
Dwarf American Toad...10-MAR...Franklin Co.
Fowler's Toad...26-MAR...Miller Co.
Northern Cricket Frog...26-MAR...Miller Co.
Cope's Gray Treefrog...26-MAR...Miller Co.
Geen Treefrog...04-MAY...Union Co.
Gray Treefrog...26-MAY...Madison Co.
Spring Peeper...12-FEB...Benton Co.
Upland Chorus Frog...20-MAR...Benton Co.
Eastern Narrowmouth Toad...28-MAR...Howard Co.
Crawfish Frog...20-MAR...Benton Co.
Bullfrog...13-JAN...Madison Co. (Froglet)
Green Frog...13-JAN...Madison Co.
Pickerel Frog...28-APR...Carroll Co.
Southern Leopard Frog...25-FEB...Franklin Co.
SALAMANDERS -- 12 species
Ringed Salamander...08-MAY...Madison Co.
Spotted Salamander...12-FEB...Benton Co.
Ouachita Dusky Salamander...14-APR...Polk Co.
Dark-sided Salamander...03-APR...Benton Co.
Cave Salamander...10-MAR...Franklin Co.
Many-ribbed Salamander...17-JUN...Montgomery Co.
Oklahoma Salamander...25-FEB...Franklin Co.
Western Slimy Salamander...10-MAR...Franklin Co.
Ozark Zig-zag Salamander...12-FEB...Benton Co.
Rich Mountain Salamander...17-MAR...Polk Co.
Southern Redback Salamander...17-MAR...Polk Co.
Central Newt...20-JUN...Garland Co.