Turtles are slow-moving reptiles with hard shells that they can retreat into when threatened.
Turtle (CR 1/6)
N Tiny Animal (Reptilian)
Init –2; Senses low-light vision; Perception +4
AC 16, touch 10, flat-footed 16 (–2 Dex, +6 natural, +2 size)
hp 3 (1d8–1)
Fort +1, Ref +0, Will +1
Resist Earth 5
Speed 5 ft.
Melee Bite –1 (1d3–4)
Space 2.5 ft.; Reach 0 ft.
Str 3, Dex 6, Con 8, Int 2, Wis 12, Cha 3
Base Atk +0; CMB –4; CMD 2 (6 vs. trip)
Feats Weapon Focus (Bite)
Skills Acrobatics +2, Perception +4, Survival +4
SQ Shell Retreat
The master of a turtle familiar gains a +1 natural armor bonus to AC.
Shell Retreat (Ex)
As a move action, a turtle can completely withdraw into its shell, leaving him almost completely impervious to attack. When withdrawn he cannot move or attack as long as he remains in this state, a turtle gains a +2 bonus to his Armor Class and a +1 bonus on Reflex saves.