Lizardmen (from Swords & Wizardry)
Hit Dice: 2+1
Armor Class: 5 
Attacks: 2 claws (1d3), 1 bite (1d8)
Move: 6/12 (swimming)
Alignment: Usually Chaos
Challenge Level/XP: 2/30
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A small sect of lizard-men worship Nobback as a god made flesh, and will sometimes attempt to lure creatures to the large alligator. The sect is all males, who keep this godling hidden from the matriarchy.
Lizard-men society is matriarchal. The males are known to be hunter-gatherers while the females tend to societal issues. These include: Oral histories, incubation of eggs, rearing young, making ceremonial instruments (headdresses, sacrificial daggers, altars, jewelry of station, etc) and making or upholding laws. Shamans are almost exclusively female.
Lizard-men near Mord Mar are blood enemies with goblins and kobolds. The dwarves of Stonemire trade swamp cow meat for dyes from the lizard-men. Occasionally, lizard-men will trade with caravans traversing through the swamps.
In the Sanctuary of Water is a separate tribe of lizard-men, that dwell exclusively underground. Their secrets will be revealed on another day.