**Description:** Large, hairy spiders with mottled brown camouflage and excellent vision.
**Size:** Leg span of 3–4 inches.
**Sexual Dimorphism:** Females are significantly larger and more robust than males.
**Habitat:** Found on tree bark and rocks near water sources.
**Behavior:** Active hunters that do not spin webs; they can run across the water surface and dive to catch small fish.