Arrow Crab
Stenorhynchus seticornis
A tiny reef spider with an arrow-shaped nose.
Arrow Crabs tiptoe over Caribbean reefs on extremely long, skinny legs. Their triangular bodies and pointed rostrums make them look like animated arrows or underwater spiders.
Find this SeaPal in the card gallery
From field guide to game table
Bring this Arrow Crab home
See which ready-to-play decks feature this SeaPal. Try one in the simulator before you buy, or explore each full deck list.
- 2 copies
Ready-to-play deck
Blue Water Deck
Includes 2 cards featuring Arrow Crab.
- 1 copy
Ready-to-play deck
Disruption Deck
Includes 1 card featuring Arrow Crab.
- 1 copy
Ready-to-play deck
Coral Garden Deck
Includes 1 card featuring Arrow Crab.
- 1 copy
Ready-to-play deck
Murky Water Deck
Includes 1 card featuring Arrow Crab.
Quick dive
Creature passport
- Home
- Atlantic and Caribbean reefs, hiding in sponges, corals, anemones, and crevices.
- Favorite foods
- Small worms and invertebrates, algae, detritus, and scavenged scraps.
- Size check
- Body 1–2.5 in (2.5–6 cm); legs reach about 4 in (10 cm)
Tell-your-friends facts
Four wonderfully wild things
- 1
Arrow Crabs are true crabs, not spiders.
- 2
They usually hide by day and forage after dark.
- 3
The long pointed snout is called a rostrum.
- 4
Their delicate-looking walking legs can be more than three times body length.
Ocean superpower
Built to be amazing
Stiltlike legs let it pick through tight reef hiding places at night.
Junior scientist tip
What should I look for?
Search for a tiny striped triangle balanced on eight spidery legs.
Grown-up research links
We used trusted science organizations to check this profile.