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Fish, Dinichthys

Dinichthys CR 12

This horrific fish has a powerful grey body, with a head of hard white plates. Its wide mouth more resembles curved blades of bloodstained bone.

XP 19,200
N Huge animal (aquatic)
Init +4; Senses blindsense (scent) 60 ft., darkvision 60 ft., low-light vision; Perception +27


EAC 26; KAC 28
Fort +16, Ref +16, Will +11


Speed swim 50 ft.
Melee bite +25 (6d6+20 P plus rupture; critical rupture 1d4)
Space 15 ft.; Reach 5 ft.
Offensive Abilities rupture, swim-by attack


Str +8, Dex +4, Con +5, Int –5, Wis +0, Cha +0
Skills Athletics +22, Survival +22


Rupture (Ex)

The large, jagged teeth of the dinichthys tear through large sections of armor with any successful bite. If their victim has active environmental protections, they lose 1 day of protection or 1d4 days on a critical hit.

Swim-By Attack (Ex)

The dinichthys can attack while swimming as though using the Spring Attack feat.


Environment any ocean
Organization solitary, pair, or clutch (3–5)

Among the deadlier animals of the sea, the mighty dinichthys holds its own against dragons and magical beasts. Its punishing bite allows it to both defend itself and feed from the ocean’s hardiest animals. Dinichthyses hunt at any depth greater than 20 feet, chasing prey for miles in any direction before resuming a natural migration toward decennial mating waters.

Dinichthyses are voracious, often biting a chunk of flesh out of a sizable creature so it can follow the wounded quarry to its herd for a larger meal.

Dinichthyses live for approximately 100 years. An adult is 30 feet long and weighs 22,000 pounds.

Section 15: Copyright Notice

Alien Bestiary (Starfinder) © 2018, Legendary Games; Lead Designer: Jason Nelson. Authors: Anthony Adam, Kate Baker, John Bennet, Eytan Bernstein, Robert Brookes, Russ Brown, Duan Byrd, Jeff Dahl, Robyn Fields, Joel Flank, Matt Goodall, Robert J. Grady, Jim Groves, Steven T. Helt, Thurston Hillman, Tim Hitchcock, Nick Hite, Daniel Hunt, Mike Kimmel Marshall, Isabelle Lee, Jeff Lee, Lyz Liddell, Jason Nelson, Richard Pett, Tom Phillips, Alistair J. Rigg, Alex Riggs, Wendall Roy, Mike Shel, Neil Spicer, Todd Stewart, Russ Taylor, Rachel Ventura, Mike Welham, George Loki Williams, Scott Young.