| Halichaetonotus margaretae Hummon, Balsamo & Todaro, 1992 | 
| No Picture Available | 
| Family: | Chaetonotidae () | |||
| Max. size: | 0.014 cm TL (male/unsexed) | |||
| Environment: | benthic; marine; depth range 2 - 5 m | |||
| Distribution: | Western Atlantic, Mediterranean and Western Indian Ocean. | |||
| Diagnosis: | ||||
| Biology: | Minimum depth from Ref .111259. Found in littoral to sublittoral, fine to coarse sand and shell gravel (Ref. 2582). This is a benthic interstitial species, found in beach and shorelines (Ref. 111259). | |||
| IUCN Red List Status: | Not Evaluated (N.E.) Ref. 123251) | |||
| Threat to humans: | ||||
| Country info: |  | |||