| Common Name | Butterfly crab |
| Language | English |
| Type | Vernacular |
| Official Trade Name | No |
| Rank | 2 - (Preferred common name (unique)) |
| Country | Canada |
| Locality | |
| Ref. | Palomares, M. L. D., 2013 |
| Life Stage | juveniles and adults |
| Sex | females and males |
| Core | morphology |
| 1st Modifier | non-fish animal |
| 2nd Modifier | |
| Remarks | 'crab' from Old English 'ceorfan', i.e., 'to curve'. |