Though possessed of a well-formed humanoid upper body, this creature’s lower half is of a hulking, savagely-pincered crab, with restlessly waving claws.

Sahratan (CR 4; XP 1,200)
N Large monstrous humanoid (aquatic)
Init +1; Senses darkvision 60 ft.; Perception +0
AC 19, touch 11, flat-footed 17
(+1 Dex, +1 dodge, +8 natural, -1 size)
hp 34 (4d10+12)
Fort +4, Ref +5, Will +4
Speed 20 ft., swim 40 ft.
Melee 2 pincers +7 (1d8+4 plus grab), trident +2 (2d6+2)
Space 10 ft.; Reach 5 ft.
Special Attacks constrict (1d8+4), lure (120 ft.; W-DC 13)
Str 19, Dex 13, Con 16, Int 7, Wis 10, Cha 13
Base Atk +4; CMB +9 (+13 grapple); CMD 20 (32 vs. trip)
Feats Dodge, Mobility
Skills Climb +11, Intimidate +9, Swim +12
Languages Aquan, Common
Environment aquatic
Organization solitary, hunting party (2-4 plus 1st level barbarian), or nest (20-30 with 25% non-combatants, 3-4 1st level barbarians, and one 5th level barbarian leader)
Treasure standard (plus trident)
Special Abilities
Lure (Ex) As a standard action, a sahratan can chant a low tone that can be heard within a 120 ft. spread above or below water. All non-sahratan within this spread must make a Will save (DC 13) or become captivated. A creature that successfully saves is not subject to the same sahratan’s lure for 24 hours. A victim under the effects of the lure moves toward the sahratan using the most direct means available. If the path leads them into a dangerous area that creature receives a second saving throw to end the effect before moving into peril. Captivated creatures can take no actions other than to defend themselves. A victim within 5 feet of the sahratan simply stands and offers no resistance to the sahratan’s attacks. This effect continues for as long as the sahratan chants and for 1 round thereafter. Additionally, any creature that has been affected by the lure for 6 or more successive rounds suffers 1d3 points of Wisdom damage. This is a sonic mind-affecting charm effect. The save DC is Charisma-based.

Sahratans inhabit shallow waters of all kinds, salt and fresh, though certain specimens of the former can possess the giant simple template, and those of the latter the young simple template, to reflect their size and habits. Sahratan dislike most other races, more with caution than with xenophobia; it is said they adapted to their present form from a more terrestrial one to escape racial persecution. They lure surface victims to possess their metal tools and weapons, and take their treasure to pay off other undersea races to leave them alone—they will ferociously go to war with those that harass them.

On Porphyra
The sahratan are likely an offshoot race of the femanx, similar to the dromopods, but with two genders and a strong resentment of the parent race. They have many nests near The Rainbow Isles, and do occasional mercenary work in the Seven Principalities, though they are known to be extremely touchy.