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Reptiles & Amphibians of San Antonio Missions National Historical Park

The reptiles & amphibians most often spotted in San Antonio Missions, ranked by recent research-grade observations.

3,025
recent observations
50
species listed
50
reptiles & amphibians

Naturalists have logged 3,025 research-grade observations across the 50 most-recorded species in San Antonio Missions. The most frequently seen is the Pond Slider, with 461 recorded sightings.

Rarer finds confirmed in San Antonio Missions include Texas Blind Snake, Texas Coralsnake and Texas Tortoise - uncommon enough that a sighting is worth logging.

Texas Blind SnakeTexas CoralsnakeTexas Tortoise

Most-observed reptiles & amphibians in San Antonio Missions

Pond Slider
Trachemys scripta
461 observations
Texas Spiny Lizard
Sceloporus olivaceus
383 observations
Spiny Softshell
Apalone spinifera
306 observations
Green Anole
Anolis carolinensis
268 observations
Diamondback Watersnake
Nerodia rhombifer
207 observations
Texas Cooter
Pseudemys texana
177 observations
Gulf Coast Toad
Incilius nebulifer
171 observations
Common Spotted Whiptail
Aspidoscelis gularis
171 observations
Mediterranean House Gecko
Hemidactylus turcicus
113 observations
Western Ratsnake
Pantherophis obsoletus
91 observations
Moorish Gecko
Tarentola mauritanica
88 observations
Green Treefrog
Dryophytes cinereus
69 observations · iNaturalist
Western Diamond-backed Rattlesnake
Crotalus atrox
63 observations
Plain-bellied Watersnake
Nerodia erythrogaster
52 observations
Checkered Garter Snake
Thamnophis marcianus
41 observations
Texas Blind Snake
Rena dulcis
41 observations
Common Snapping Turtle
Chelydra serpentina
34 observations
Little Brown Skink
Scincella lateralis
30 observations
Rough Greensnake
Opheodrys aestivus
26 observations
Rio Grande Chirping Frog
Eleutherodactylus campi
24 observations
Texas Coralsnake
Micrurus tener
22 observations
Rough Earthsnake
Virginia striatula
21 observations
Great Plains Ratsnake
Pantherophis emoryi
15 observations
Schott's Whipsnake
Masticophis schotti
12 observations
Keeled Rock Gecko
Cyrtopodion scabrum
12 observations
Northern Rose-bellied Lizard
Sceloporus marmoratus
12 observations · iNaturalist
Blanchard's Cricket Frog
Acris blanchardi
10 observations
Common Coachwhip
Masticophis flagellum
10 observations
Northern Cottonmouth
Agkistrodon piscivorus
10 observations
Yellow Mud Turtle
Kinosternon flavescens
9 observations
Western Ribbon Snake
Thamnophis proximus
9 observations
Western Narrow-mouthed Toad
Gastrophryne olivacea
8 observations
Texas Patch-nosed Snake
Salvadora lineata
8 observations
Brown Anole
Anolis sagrei
7 observations
Eastern Musk Turtle
Sternotherus odoratus
6 observations
American Bullfrog
Lithobates catesbeianus
6 observations
American Alligator
Alligator mississippiensis
5 observations
Desert Kingsnake
Lampropeltis splendida
5 observations
DeKay's Brownsnake
Storeria dekayi
4 observations
Texas Tortoise
Gopherus berlandieri
3 observations
Common Five-lined Skink
Plestiodon fasciatus
2 observations
Four-lined Skink
Plestiodon tetragrammus
2 observations
Prairie Lizard
Sceloporus consobrinus
2 observations
Three-toed Box Turtle
Terrapene triunguis
2 observations
Cope's Gray Tree Frog
Dryophytes chrysoscelis
2 observations · iNaturalist
Spotted Chorus Frog
Pseudacris clarkii
1 observation
Flat-headed Snake
Tantilla gracilis
1 observation
Eastern Hognose Snake
Heterodon platirhinos
1 observation
Florida Red-bellied Cooter
Pseudemys nelsoni
1 observation
Rio Grande Leopard Frog
Lithobates berlandieri
1 observation

Built from recent research-grade iNaturalist observations. Identifications are community-sourced and may occasionally be wrong, and the ranking reflects where people record and photograph wildlife, so a species seen often here is not necessarily rare elsewhere. Some plants and animals are only out in certain seasons. Treat this as a lively snapshot of what people are finding, not a formal checklist.

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