| Common name | Squaremouth |
| Language | English |
| Type | Vernacular |
| Official trade name | No |
| Rank | 3 - (Other common name) |
| Country | Canada |
| Locality | British Columbia |
| Ref. | Scott, W.B. and E.J. Crossman, 1998 |
| Life stage | juveniles and adults |
| Sex | females and males |
| Core | |
| 1st modifier | |
| 2nd modifier | |
| Remarks | 'Squaremouth', i.e., mouth ressembling that of a square (four sided figure), alluding to the shape of the lower lip which is covered with a hard cartilagenous sheath, with an almost straight cutting edge like that of a chisel (Ref. 1998). |