Again, terebella = dungeon dressing.
Cleon... none of us want to stat these guys. Except, it appears, you. We've already moved on.
To another giant useless worm, mind you.
We could pick from these...
Chimpanzee [Dungeon #56]
Dingo [Dragon #186]
Dog, Wild [Monstrous Manual]
Gopher [Monstrous Compendium Volume Two]
Gorilla [Monstrous Manual]
Hart [Dragon #137]
Hippopotamus, Pygmy [Dungeon #56]
Horse, Riding [Monstrous Manual]
Horse, Wild [Monstrous Manual]
Morena [Monstrous Compendium Annual Volume Four]
Muskrat [Monstrous Compendium Volume Two]
Octopus, Deep-Dwelling [Dragon #190]
Opossum [Monstrous Compendium Volume Two]
Porcupine, Black [Monstrous Compendium Volume Two]
Porcupine, Brown [Monstrous Compendium Volume Two]
Ray, Electric [Monstrous Compendium Annual Volume Four]
Ray, Sawfish [Dragon #116]
Stag, Wild [Monstrous Compendium Annual Volume Two]
Woodchuck [Monstrous Compendium Volume Two]
...or continue down the vermin path with some of the unsual spiders from Dragon #67 or the giant versions of micro-organisms in Dragon #111.

(Dungeons & Dragons)
Rulebook featuring "high magic" options, including a host of new spells.