I went and found all the new mobs within days of the update that added them and made wiki pages for them. I think I put their locations on the pages, too. As far as level 100+ ones:
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Viseclaws (Crabs) in The Boyahda Tree
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Snaggletooth Peapuks in The Boyahda Tree
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Mourning Crawlers in The Boyahda Tree
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Kuftal Delvers (worms) in Kuftal Tunnel
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Machairoduses (Tigers) in Kuftal Tunnel
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Boulder Eaters (Worms) in Gustav Tunnel
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Pygmatoises (Adamantoises) in Gustav Tunnel
Now, if you wanna include mobs that go up to 99, but not 100+... I made pages for these too, but didn't include the locations on the pages:
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Balayangs (Giant Bats) in Fei'Yin along the east side of the first floor
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Wekufes (Ghosts) in Fei'Yin along the east side of the first floor
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Sentient Carafes (Magic Pots) in Fei'Yin along the east side of the first floor
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Wurdalaks (Vampyrs) in Bostaunieux Oubliette in the NE corner of the main map (i.e. not the Bloodsucker-filled one)
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Flume Toads (Toads, the non-casting type like Crapaudys and Squibs) in Toraimarai Canal (they are at the bottom of the map, I remember, but can't remember which of the 2 maps)
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Poroggo Excavators (the casting variety of frogs) in Toraimarai Canal (same place as the Flume Toads)
And of course, it should be noted that all of these mobs have GoV pages dedicated to them. :P