| Classification | Acrosiphonia: Ulotrichaceae |
| Classification 1 | Spongomorpha: Ulotrichaceae |
| Harvard University Herbaria Barcode(s) | 00935204 |
| Collector | I. M. Lamb & M. H. Zimmermann |
| Collector number | A-705 |
| Country | United States of America |
| State | Massachusetts |
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Massachusetts: Essex County |
| Locality | Cape Ann, Halibut Point |
| Date Collected | 1964-03-14 |
| Substrate | Attached in tufts to rocks in lowest intertidal or sublittoral fringe zone |
| Project | Macroalgae TCN |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/cd587433-eca3-4a4c-9e74-98fedf360673 |
| Harvard University Herbaria Barcode | 00935204 |
| Herbarium | FH |
| Family | Ulotrichaceae |
| Determination | Acrosiphonia arcta (Dillwyn) Gain |
| Determination Remarks | [filed under] [current name] |
| Family | Ulotrichaceae |
| Determination | Spongomorpha arcta (Dillwyn) Kützing |
| Determination Remarks | [label name] |
| Sex | not determined |
| Phenology | NotDetermined |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
