congratulations steve for finding a fine fish ....
In absolute terms it is indeed a swordfish, however .....
Most published puzzles have been using the swordfish to incorporate only BASIC swordfish wich means 3 rows x 3 columns or 3 columns x 3 rows (NO BOXES)
What you have described is somthing called FRANKEN swordfish where boxes can be included in the 3 house x 3 house formation (NO mixing of rows and columns is allowed), IMO, this should have been explicitly mentioned beforehand. This shouldn't prevent us from admiring your fine catch....
When anything goes (mixing of rows, columns or boxes in any order in the 3x3 formation) then this is termed MUTANT swordfish .....
Here is are 2 examples with the same outcome from the above puzzle with 9 eliminations (The 2nd is actually Steve's catch ... Are you missing an elimination Steve ?).
Code:
8 forms a mutant swordfish r9c9b5/r5c5b9 [r178c5][r5c1237][r78c7]<>8
8 forms a franken swordfish r4r6r9/c5c7b4 [r178c5][r5c1237][r78c7]<>8 (This is Steve's fine catch)
tarek