Body sizes for 232 species of North American squamates with geographic ranges in the United States and Canada. Taxonomic nomenclature follows Uetz et al. (2007). Maximum total lengths for snakes are taken from Conant and Collins (1998), Ernst and Ernst (2003), and Stebbins (2003). Maximum total lengths for lizards were taken from Behler and King (2002).
Species / Maximum Total Length (mm)
Agkistrodon contortrix / 1350
Agkistrodon piscivorus / 1890
Anniella pulchra / 235
Anolis carolinensis / 203
Arizona elegans / 1780
Arizona occidentalis / 1780
Aspidoscelis burti / 451
Aspidoscelis dixoni / 318
Aspidoscelis exsanguis / 314
Aspidoscelis flagellicaudus / 306
Aspidoscelis gularis / 279
Aspidoscelis hyperythrus / 205
Aspidoscelis inornatus / 238
Aspidoscelis laredoensis / 289
Aspidoscelis marmoratus / 305
Aspidoscelis neomexicanus / 302
Aspidoscelis neotesselatus / 394
Aspidoscelis septemvittatus / 318
Aspidoscelis sexlineatus / 267
Aspidoscelis sonorae / 287
Aspidoscelis tesselatus / 394
Aspidoscelis tigris / 305
Aspidoscelis uniparens / 238
Aspidoscelis velox / 273
Bogertophis subocularis / 1680
Callisaurus draconoides / 232
Carphophis amoenus / 340
Carphophis vermis / 390
Cemophora coccinea / 830
Charina bottae / 830
Chilomeniscus cinctus / 250
Chilomeniscus stramineus / 250
Chionactis occipitalis / 420
Chionactis palarostris / 400
Clonophis kirtlandii / 620
Coleonyx brevis / 120
Coleonyx reticulatus / 168
Coleonyx switaki / 150
Coleonyx variegatus / 150
Coluber constrictor / 1820
Coluber mormon / 1300
Coniophanes imperialis / 510
Contia tenuis / 450
Cophosaurus texanus / 184
Crotalus adamanteus / 2440
Crotalus atrox / 2130
Crotalus cerastes / 820
Crotalus exsul / 1620
Crotalus horridus / 1890
Crotalus lepidus / 830
Crotalus mitchellii / 1320
Crotalus molossus / 1260
Crotalus pricei / 650
Crotalus scutulatus / 1290
Crotalus tigris / 900
Crotalus viridis / 1620
Crotalus willardi / 640
Crotaphytus bicinctores / 360
Crotaphytus collaris / 356
Crotaphytus nebrius / 360
Crotaphytus reticulatus / 425
Crotaphytus vestigium / 360
Diadophis punctatus / 750
Dipsosaurus dorsalis / 406
Drymarchon corais / 2630
Drymobius margaritiferus / 1270
Elgaria coerulea / 330
Elgaria kingii / 317
Elgaria multicarinata / 428
Elgaria panamintia / 381
Farancia abacura / 2070
Farancia erytrogramma / 1680
Ficimia streckeri / 480
Gambelia copeii / 384
Gambelia sila / 235
Gambelia wislizenii / 384
Gerrhonotus infernalis / 508
Gyalopion canum / 360
Gyalopion quadrangulare / 300
Heloderma suspectum / 610
Heterodon nasicus / 1010
Heterodon platirhinos / 1160
Heterodon simus / 610
Holbrookia lacerata / 152
Holbrookia maculata / 130
Holbrookia propinqua / 141
Hypsiglena torquata / 650
Lampropeltis alterna / 1470
Lampropeltis calligaster / 1430
Lampropeltis extenuatum / 650
Lampropeltis getula / 2080
Lampropeltis pyromelana / 1040
Lampropeltis triangulum / 1350
Lampropeltis zonata / 1020
Leptodeira septentrionalis / 980
Leptotyphlops dulcis / 270
Leptotyphlops humilis / 410
Lichanura trivirgata / 1100
Liochlorophis vernalis / 650
Masticophis bilineatus / 1700
Masticophis flagellum / 2550
Masticophis lateralis / 1520
Masticophis schotti / 1680
Masticophis taeniatus / 1830
Micruroides euryxanthus / 530
Micrurus fulvius / 1210
Micrurus tener / 1220
Nerodia clarkii / 930
Nerodia cyclopion / 1270
Nerodia erythrogaster / 1570
Nerodia fasciata / 1590
Nerodia floridana / 1880
Nerodia harteri / 900
Nerodia paucimaculata / 900
Nerodia rhombifer / 1600
Nerodia sipedon / 1500
Nerodia taxispilota / 1770
Opheodrys aestivus / 1160
Ophisaurus attenuatus / 1067
Ophisaurus compressus / 610
Ophisaurus mimicus / 657
Ophisaurus ventralis / 1083
Oxybelis aeneus / 1520
Pantherophis bairdi / 1570
Pantherophis emoryi / 1530
Pantherophis guttata / 1830
Pantherophis obsoleta / 2560
Pantherophis vulpina / 1790
Petrosaurus mearnsi / 290
Phrynosoma cornutum / 181
Phrynosoma coronatum / 161
Phrynosoma douglasii / 149
Phrynosoma mcallii / 120
Phrynosoma modestum / 105
Phrynosoma platyrhinos / 136
Phrynosoma solare / 167
Phyllorhynchus browni / 510
Phyllorhynchus decurtatus / 500
Pituophis catenifer / 2750
Pituophis melanoleucus / 2540
Pituophis ruthveni / 1780
Plestiodon anthracinus / 178
Plestiodon callicephalus / 200
Plestiodon egregius / 165
Plestiodon fasciatus / 215
Plestiodon gilberti / 326
Plestiodon inexpectatus / 216
Plestiodon laticeps / 324
Plestiodon multivirgatus / 194
Plestiodon obsoletus / 349
Plestiodon reynoldsi / 130
Plestiodon septentrionalis / 224
Plestiodon skiltonianus / 237
Plestiodon tetragrammus / 200
Regina alleni / 650
Regina grahamii / 1190
Regina rigida / 800
Regina septemvittata / 920
Rhadinaea flavilata / 400
Rhineura floridana / 406
Rhinocheilus lecontei / 1040
Salvadora deserticola / 1020
Salvadora grahamiae / 1190
Salvadora hexalepis / 1150
Sauromalus obesus / 419
Sceloporus arenicolus / 152
Sceloporus clarkii / 325
Sceloporus graciosus / 152
Sceloporus grammicus / 175
Sceloporus jarrovii / 222
Sceloporus magister / 330
Sceloporus merriami / 159
Sceloporus occidentalis / 235
Sceloporus olivaceus / 279
Sceloporus orcutti / 269
Sceloporus poinsettii / 292
Sceloporus serrifer / 362
Sceloporus slevini / 96
Sceloporus undulatus / 191
Sceloporus vandenburgianus / 152
Sceloporus variabilis / 140
Sceloporus virgatus / 174
Sceloporus woodi / 144
Scincella lateralis / 130
Seminatrix pygaea / 470
Senticolis triaspis / 1250
Sistrurus catenatus / 1000
Sistrurus miliarius / 800
Sonora semiannulata / 480
Sphaerodactylus notatus / 57
Storeria dekayi / 490
Storeria occipitomaculata / 410
Tantilla atriceps / 230
Tantilla coronata / 330
Tantilla cucullata / 650
Tantilla gracilis / 250
Tantilla hobartsmithi / 370
Tantilla nigriceps / 380
Tantilla oolitica / 290
Tantilla planiceps / 390
Tantilla relicta / 230
Tantilla wilcoxi / 360
Tantilla yaquia / 320
Thamnophis atratus / 1020
Thamnophis brachystoma / 560
Thamnophis butleri / 690
Thamnophis couchii / 1600
Thamnophis cyrtopsis / 1090
Thamnophis elegans / 1070
Thamnophis eques / 1000
Thamnophis gigas / 1630
Thamnophis hammondii / 900
Thamnophis marcianus / 1080
Thamnophis ordinoides / 950
Thamnophis proximus / 1230
Thamnophis radix / 1100
Thamnophis rufipunctatus / 860
Thamnophis sauritus / 1020
Thamnophis sirtalis / 1300
Trimorphodon biscutatus / 1210
Tropidoclonion lineatum / 540
Uma notata / 179
Uma scoparia / 179
Urosaurus graciosus / 184
Urosaurus microscutatus / 120
Urosaurus ornatus / 159
Uta stansburiana / 162
Virginia striatula / 320
Virginia valeriae / 390
Xantusia henshawi / 143
Xantusia riversiana / 209
Xantusia vigilis / 128
References
Behler JL, King FW. 2002. The Audubon Society field guide to North American Reptiles and Amphibians. New York: Alfred A. Knopf.
Conant R, Collins JT. 1998. A Field Guide to Reptiles and Amphibians: Eastern and Central North America. Boston: Houghton Mifflin.
Ernst CH, Ernst EM. 2003. Snakes of the United States and Canada. Washington and London: Smithsonian Books.
Stebbins RC. 2003. Western Reptiles and Amphibians. Boston New York: Houghton Mifflin.
Uetz P, Goll J, Halleman J. 2007. Die TIGR-Reptiliendatenbank. Elaphe 15:22-25.