| Thamnostoma tetrellum (Haeckel, 1879) | 
| No Picture Available | 
| Family: | Bougainvilliidae () | |||
| Max. size: | 0.4 cm WD (male/unsexed) | |||
| Environment: | pelagic; marine; depth range 0 - 50 m | |||
| Distribution: | Western Atlantic: Mexico and Brazil. | |||
| Diagnosis: | ||||
| Biology: | Neritic (Ref. 116114). | |||
| IUCN Red List Status: | Not Evaluated (N.E.) Ref. 123251) | |||
| Threat to humans: | ||||
| Country info: |  | |||