The mahamba is a freshwater cousin of the mosasaur, a large prehistoric marine reptile. The mahamba can reach a length of 50 feet. The aboriginals simply call it Nkoli and sometimes compare this terror to the nguna-monene, a sizeable lizard-like monster, even if the creatures are quite different.

Although overly voracious, this cunning aquatic monstrosity seems to know when to give up and swim away, a rare quality amongst the biggest predators.

This reptilian creature has a fish-like body but the head is similar to that of a crocodile. This behemoth can assuredly swallow an entire dugout canoe in one gulp.

Mahamba CR 12

    XP 19,200
    N Colossal animal (aquatic)
    Init +4; Senses low-light vision; Perception +10

Defense
    AC 20, touch 2, flat-footed 20 (+18 natural, –8 size)
    hp 242 (17d8+170)
    Fort +22, Ref +10, Will +7

Offense
    Speed 20 ft.; swim 40 ft.
    Melee bite +19 (4d6+15/19–20 plus grab), and tail slap +14 (4d6+8)
    Space 30 ft.; Reach 20 ft.
Special Attacks devour rafts and canoes, fast swallow, swallow whole (4d6+15, AC 19, 24 hp)

Statistics
    Str 40, Dex 11, Con 31, Int 2, Wis 15, Cha 5
    Base Atk +12; CMB +35; CMD 45 (can’t be tripped)
    Feats Great Fortitude, Greater Sunder, Improved Critical, Improved Great Fortitude, Improved Initiative, Improved Overrun, Improved Sunder, Lunge, Power Attack
    Skills Perception +10, Swim +30
    SQ amphibious

Ecology
    Environment warm aquatic (freshwater)
    Organization solitary, pair, or school (3–6)
    Treasure incidental

Special Abilities
Devour Rafts and Canoes (Ex) A mahamba can swallow completely a vessel and its entire crew if the ship is of size Large or smaller.