This is actually a 3.0 monster not a 3.5. To update it to 3.5 is relatively easy.

BAB/Grapple: +4/+8

Touch AC is 9, Flat-footed is 13

Slam damage should have Str bonus.

Attack line would be written
Attack: Slam +8 melee (1d8+4)
Full Attack: 2 Slams +8 melee (1d8+4)

Space/Reach: 5 ft./5 ft.

Change Climate/Terrain to Environment

Debby