| Common name | Halfmoon triggerfish |
| Language | English |
| Type | Vernacular |
| Official trade name | No |
| Rank | 2 - (Preferred common name (unique)) |
| Country | Micronesia (Federal States of) |
| Locality | |
| Ref. | Myers, R.F., 1991 |
| Life stage | juveniles and adults |
| Sex | females and males |
| Core | inanimate object |
| 1st modifier | |
| 2nd modifier | |
| Remarks | In Triggerfishes, the second spine of the first dorsal acts as a trigger, locking the first spine of the first dorsal fin and if depressed, unlocks the first spine (from Ref. 5288). |