genus
Synthliboramphus
Synthliboramphus is a genus in the family Alcidae. This database currently files 5 species under it, 4 of them threatened.
- Species filed
- 5
- Threatened
- 4
- Countries recorded
- 0
- With a free photo
- 100%
- Weight range
- 151 g – 217.7 g
Best-known members of Synthliboramphus
Ranked by popularity score.

Ancient murrelet
Synthliboramphus antiquus

Japanese murrelet
Synthliboramphus wumizusume

Guadalupe murrelet
Synthliboramphus hypoleucus

Craveri's murrelet
Synthliboramphus craveri

Scripps's murrelet
Synthliboramphus scrippsi
How threatened is Synthliboramphus?
5 of 5 species filed here have an IUCN category on record.
| IUCN category | Species | Share of assessed |
|---|---|---|
| ENEndangered | 1 | 20% |
| VUVulnerable | 3 | 60% |
| LCLeast Concern | 1 | 20% |
All species in Synthliboramphus
| Common name | Scientific name | Family | Status | Weight | Countries |
|---|---|---|---|---|---|
| Ancient murrelet | Synthliboramphus antiquus | Alcidae | Least Concern | 217.7 g | Not recorded |
| Japanese murrelet | Synthliboramphus wumizusume | Alcidae | Vulnerable | 198 g | Not recorded |
| Guadalupe murrelet | Synthliboramphus hypoleucus | Alcidae | Endangered | 167 g | Not recorded |
| Craveri's murrelet | Synthliboramphus craveri | Alcidae | Vulnerable | 151 g | Not recorded |
| Scripps's murrelet | Synthliboramphus scrippsi | Alcidae | Vulnerable | 167 g | Not recorded |