CR 9

XP 6,400

N Large animal

Init +6; Senses low-light vision, sense through (vision [stone only]); Perception +17


HP 145

EAC 22; KAC 24

Fort +13; Ref +13; Will +8

Immunities acid


Speed 30 ft., burrow 30 ft.

Melee bite +21 (2d10+12 P)

Ranged acid jet +18 (3d6+9 A)

Space 10 ft.; Reach 10 ft.

Offensive Abilities corrosive spines


Str +3; Dex +6; Con +4; Int -4; Wis +2; Cha +0

Skills Stealth +22, Acrobatics +17

Other Abilities no breath, tunnel swiftness


Environment Environmentany underground or vacuum

Organization solitary or pair

Special Abilities

Acid Jet (Ex) As a standard action, a surnoch can spew a stream of acid from one of its spines. This attack has the line weapon special property and a range increment of 60 feet.

Corrosive Spines (Ex) A creature that begins its turn grappled by a surnoch automatically takes 3d6+9 acid and piercing damage from the acid dripping from its spines.

Tunnel Swiftness (Ex) When moving in a tunnel that it or another surnoch has burrowed, a surnoch moves five times its speed and doesn’t gain the flat-footed condition when it takes the run action. In addition, it can hustle in such a tunnel for 3 hours each day before it begins to take nonlethal damage.

Section 15: Copyright Notice

Starfinder Alien Archive © 2017, Paizo Inc.; Authors: John Compton, Adam Daigle, Crystal Frasier, Amanda Hamon Kunz, Jason Keeley, Jon Keith, Steve Kenson, Isabelle Lee, Lyz Liddell, Robert G. McCreary, Mark Moreland, Joe Pasini, F. Wesley Schneider, Owen K.C. Stephens, James L. Sutter, and Josh Vogt.