| Parent | Category | Figures | |
|---|---|---|---|
| 1 | Crotalus | atrox | 4043 |
| 2 | Crotalus | oreganus | 2621 |
| 3 | Crotalus | horridus | 998 |
| 4 | Crotalus | scutulatus | 684 |
| 5 | Crotalus | viridis | 638 |
| 6 | Crotalus | cerastes | 521 |
| 7 | Crotalus | ruber | 492 |
| 8 | Crotalus | molossus | 467 |
| 9 | Crotalus | ornatus | 360 |
| 10 | Crotalus | pyrrhus | 347 |
| 11 | Crotalus | lepidus | 292 |
| 12 | Crotalus | adamanteus | 249 |
| 13 | Crotalus | triseriatus | 106 |
| 14 | Crotalus | aquilus | 87 |
| 15 | Crotalus | basiliscus | 82 |
| 16 | Crotalus | tigris | 77 |
| 17 | Crotalus | stephensi | 56 |
| 18 | Crotalus | pricei | 55 |
| 19 | Crotalus | cerberus | 48 |
| 20 | Crotalus | mitchellii | 47 |
| 21 | Crotalus | ravus | 46 |
| 22 | Crotalus | willardi | 42 |
| 23 | Crotalus | durissus | 40 |
| 24 | Crotalus | simus | 37 |
| 25 | Crotalus | enyo | 30 |
| 26 | Crotalus | tzabcan | 27 |
| 27 | Crotalus | polystictus | 18 |
| 28 | Crotalus | culminatus | 17 |
| 29 | Crotalus | totonacus | 12 |
| 30 | Crotalus | catalinensis | 8 |
| 31 | Crotalus | intermedius | 7 |
| 32 | Crotalus | tortugensis | 7 |
| 33 | Crotalus | campbelli | 5 |
| 34 | Crotalus | pusillus | 3 |
| 35 | Crotalus | armstrongi | 2 |
| 36 | Crotalus | stejnegeri | 1 |
| 37 | Crotalus | transversus | 1 |
| 38 | Crotalus | tlaloci | 1 |