age 
2, propinqua, Baird...... 208 
3. elegans, Bocowt ...... 209 
4, maculata, Gir......... 209 
5. lacerata, Cope ........ 209 
48. es BOGGS aya tie wees 210 
1. stansburiana, B.§ G. .. 211 
2. elegans, Farr. ........ 211 
3. nigricauda, Cope ...... 212 
4. ornata, B.§ Ge... 213 
5. gratiosa, B.§ G. ...... 213 
6. symmetrica, Baird .... 213 
7. lateralis, Blgr......... 214 
8. auriculata, Cope ...... 214 
9. bicarinata, 4. Dum. .. 215 
10. irregularis, Fisch....... 216 
49. Sceloporus, Wregm. .. 216 
1. torquatus, Weegm. .... 219 
2. serrifer, Cope ........ 221 
3. acanthinus, Bocourt .. 221 
4. formosus, Wiegm. .... 222 
5. yarrovii, Cope ........ 223 
6. ornatus, Bard........ 224 
7. dugesii, Bocowrt ...... 224 
8. melanorhinus, Bocourt. 225 
9. zosteromus, Cope 225 
10. spinosus, Weegm. 226 
11. undulatus, Daud. . 227 
piseriatus, Hall. ...... 229 
12. consobrinus, B. § G... 229 
13. gratiosus, B. § G. .... 28 
14, couchii, Baird........ 231 
15. grammicus, Wiegm. ., 2 
16. microlepidotus, Wiegm. 232 
17. wneus, Wiegm. ...... 233 
18. scalaris, Wregm....... 234 
19. pyrrhocephalus, Cope. . 285 
20. chrysostictus, Cope.... 285 
21. variabilis, Wiegm. .... 236 
22. siniferus, Cope........ 237 
23. fulvus, Bucowt ...... 238 
24, squamosus, Bocourt 238 
25. utiformis, Cope ...... 238 
marmoratus, fHall..... 216 
50. Phrynosoma, Wregm..... 239 
1. douglassii, Bell ...... 240 
2. orbiculare, DZ. ........ 24) 
3. boucardii, Bocowt .... 243 
4, coronatum, Blarnv..... 243 
5. asio, Cope .......-.. 244 
6. regale, Gir... ce... 245 
7. cornutum, Harl....... 245 
8. maccallii, Zell........ 246 
9, platy rhinus, GB act suetve 247 
10, modestum, ‘Gir. . 248 
11. braconnieri, Bocourt .. 248 
12, taurus, Dugés ........ 249 
SYSTEMATIC INDEX. 
Page 
Pneustes, Merr.........55 249 
prehensilis, Daud. .... 249 
Fam. 7. XENOSAURID#. 
. NXenosaurus, Pt7's,........ 250 
1. grandis, Gray ........ 250 
Fam, 8. ZoNURIDm. 
. Zonurus, Merr........44. 252 
1. giganteus, Smith...... 253 
2. tropidosternum, Cope.. 254 
3. cataphractus, Bove .... 255 
4. cordylus, Z.........6 256 
5. polyzonus, Smith...... 257 
6. pustulatus, Pirs....... 258 
7. capensis, Smith ...... 258 
. Pseudocordylus, Smuth.... 259 
1. microlepidotus, Smith . 259 
. Platysaurus, Smith ...... 261 
1. capensis, Smith ...... 261 
2. guttatus, Smith ...... 262 
3. torquatus, Ptrs. ...... 262 
. Chameesaura, Schn. ...... 263 
1. eenea, Wiegm......... 263 
2. ANPUIDA, Be ace elise es 264 
3. macrolepis, Cope...... 264 
Fam. 9. ANGUIDR. 
. Gerrhonotus, Wiegm. .... 266 
1. oaxace, Gthr......... 268 
2. gramineus, Cope...... 269 
3. depp, Wiegm. ...... 269 
4. tenlatus, Wiegm. .... 270 
5. vasconcelosii, Bocourt.. 270 
G6. fimbriatus, Cope ...... 271 
7. auritus, Cope ........ 271 
8. imbricatus, Wiegm. .. 272 
9. rudicollis, Wiegm..... 272 
10. planifrons, Bocourt.... 273 
ll. ceruleus, Wiegm. .... 278 
12, kingii, Gray ........ 274 
15, liocephalus, Wiegm. .. 275 
14. modestus, Cope ...... 276 
15, vhombifer, Ptrs. ...... 276 
16, antauges, Cope........ 277 
17, obscurus, Gthr. ...... 277 
18. monticola, Cope ...... 278° 
19. moreletii, Bocourt .... 278 
. Ophisaurus, Daud, ...... 279 
1. apus, Pall. .......... 280 KF 
2. ventralis, Z........... 281 
3. attenuatus, Baird .... 282 
4, gracilis, Gray........ 283 
5. koellikeri, Gthr....... 289, 
