| Classification | Rhodophyta: Ceramiaceae: Antithamnieae: Antithamnion |
| Harvard University Herbaria Barcode(s) | 00989020 |
| Collector | [data not captured] |
| Collector number | 10497 |
| Country | Canada |
| State | Newfoundland & Labrador |
| Geography | North America: North America (CA, US, MX) (Region): Canada: Newfoundland & Labrador: Bay Bulls |
| Locality | Boone Pt., Bay Bulls |
| Georeference | 47° 18' 5" N, 52° 46' 8" W |
| Date Collected | 1973-03-31 |
| Habitat | 1 to more than 30m, collected from 12m, an exposed location, water -1.5C, air 1C, salinity 28.5/00 |
| Substrate | on hydroids, Ptilota serrata and other substrata |
| Frequency | growing very commonly |
| Project | Macroalgae TCN |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/1cffa670-6c11-462e-8156-b7205201f404 |
| Harvard University Herbaria Barcode | 00989020 |
| Herbarium | FH |
| Previous ownership | ex Phycological Herbarium, Memorial University of Newfoundland, St. John's |
| Exsiccata | Algae Terrae Novae Fascicle 9 Number 200 |
| Family | Ceramiaceae |
| Determination | Antithamnion pylaisaei (Montagne) Kjellman |
| Determined by | A. Whittick, R. Hooper |
| Determination Remarks | [is filed under name] [is Current name] |
| Sex | not determined |
| Phenology | NotDetermined |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
