Plesiosaur: CR 10; Gargantuan
animal (aquatic); HD 16d8+112; hp 184; Mas 24; Init +0; Spd 10 ft., swim 50 ft.;
Defense 12, touch 6, flat-footed 12 (-4
size, +6 natural); BAB +12; Grap +36; Atk +20 melee (2d8+18, bite); Full Atk +20 melee (2d8+18, bite); FS 20 ft. by 20 ft.;
Reach 15 ft.; SQ
scent; AL none; SV Fort +17, Ref +10, Will +6; AP 0; Rep +0; Str 34, Dex 10, Con 24, Int 2, Wis 13, Cha 9.