genus
Heloderma
Heloderma is a genus in the family Helodermatidae. This database currently files 5 species under it, recorded across 2 countries.
- Species filed
- 5
- Threatened
- 0
- Countries recorded
- 2
- With a free photo
- 40%
- Weight range
- 554.5 g – 2.73 kg
Best-known members of Heloderma
Ranked by popularity score.

Gila monster
Heloderma suspectum

Mexican beaded lizard
Heloderma horridum
Guatemala beaded lizard
Heloderma charlesbogerti
Rio Fuerte beaded lizard
Heloderma exasperatum
Black beaded lizard
Heloderma alvarezi
How threatened is Heloderma?
2 of 5 species filed here have an IUCN category on record.
| IUCN category | Species | Share of assessed |
|---|---|---|
| NTNear Threatened | 1 | 50% |
| LCLeast Concern | 1 | 50% |
Where is Heloderma found?
Species on file in this genus listed for each country. Checklist listings, which are incomplete for many species; not range maps.
- None on record
- 1
- 2
- 3
- 4+
All species in Heloderma
| Common name | Scientific name | Family | Status | Weight | Countries |
|---|---|---|---|---|---|
| Gila monster | Heloderma suspectum | Helodermatidae | Near Threatened | 554.5 g | Not recorded |
| Mexican beaded lizard | Heloderma horridum | Helodermatidae | Least Concern | 2.73 kg | 1 |
| Guatemala beaded lizard | Heloderma charlesbogerti | Helodermatidae | Not recorded | 950.1 g | 1 |
| Rio Fuerte beaded lizard | Heloderma exasperatum | Helodermatidae | Not recorded | 1.29 kg | Not recorded |
| Black beaded lizard | Heloderma alvarezi | Helodermatidae | Not recorded | 800.8 g | Not recorded |