Way off base.
Hmm... I looked at the place I got the info and I don't think the author really knew as much as he portrayed himself knowing by phrasing.
I've never owned a wolfhound and was going off what I've read. I remembered that this guy listed them as the tallest dogs, but I bet he was going by breed requirements, not real weights. This is what I get every time I don't check additional sources. I should learn.
Some further checking shows that he gave the breed minimum weight as the max weight (grumble). Maybe the 180-190 lbs range is more realistic as top weights? I know that they typically weigh less than the larger great danes, but I did think 120 lbs was pretty darn skinny. If the author was going with breed standards, I'd wager that wolfhounds have been measured more like 36" at the shoulder as well then.
Gah... Throw out my whole post on dog breeds. The gray wolf info is the only stuff that I now trust to be accurate because it came from a very different source.
...
OK. From my own checking (rather than looking at an author who had summarized it completely wrong):
Wolfhounds: reach 36" and maybe 190 lbs. as a normal dog (with a rare few bigger than that.)
Great Danes: one reached 41.5" and 238 lbs, but most rarely exceed 36" and 200 lbs
Saint Bernards: reach up to 33" and 210+ lbs
English Mastiff: one reached 37", 99" long, and 343 lbs. Most top out at maybe 34" and in the mid 200's for lbs.
I really do know more about canids & other mammals than fish, though I'm shaky on various individual domestic breeds. However, that partly just means I don't know that much about fish yet, unfortunately.