| Classification | Rhodophyta: Ceramiaceae: Callithamnion | 
| Harvard University Herbaria Barcode(s) | 00945431 | 
| Collector | [no data available] | 
| Country | Ireland | 
| Geography | Europe: Europe (Region) (Region): Ireland | 
| Locality | Portrush | 
| Project | Macroalgae TCN | 
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/4a5f7d94-be0c-4c02-b65f-653e633f25de | 
| Harvard University Herbaria Barcode | 00945431 | 
| Herbarium | FH | 
| Family | Ceramiaceae | 
| Determination | Callithamnion polyspermum C. Agardh | 
| Determination Remarks | [filed under] [current name] | 
| Subcollection | Taylor Herbarium: Algae | 
| Sex | not determined | 
| Phenology | NotDetermined | 
| Preparation Type | Sheet | 
| Preparation Method | Pressed |