| Name | Tortella arctica (Arnell) Crundw. & Nyholm |
| Authorship | (Arnell) Crundw. & Nyholm |
| Rank | Species |
| Placed in | Tortella |
| Citation | 1963 [1964] Bryologist 66: 184 |
| Holdings | 7 Specimens held in the Harvard University Herbaria identified as Tortella arctica (Arnell) Crundw. & Nyholm |
| Identification made in | [no date] (7) |