· Shellfish & crabs · 2026 season
| Where | Season | Size limit | Daily limit |
|---|---|---|---|
| SC state waters | Closed to harvest | — | — |
Source: South Carolina Department of Natural Resources, captured 2026-10-01 (2026 season).
Say it, snap a photo, or type the length. SlotGauge answers KEEP or RELEASE using today's South Carolina rules.
Open SlotGauge for Horseshoe CrabFamily of basal chelicerates
Horseshoe crabs are arthropods of the family Limulidae and the only surviving xiphosurans. Despite their name, they are not crabs or even crustaceans; they are chelicerates, more closely related to arachnids like spiders, ticks, and scorpions. The body of a horseshoe crab is divided into three main parts: the cephalothorax, abdomen, and telson. The largest of these, the cephalothorax, houses most of the animal's eyes, limbs, and internal organs. It is also where the animal gets its name, as its shape somewhat resembles that of a horseshoe. Horseshoe crabs have been described as "living fossils", having changed little since they first appeared in the Triassic around 250 million years ago, and similar-looking fossil xiphosurans extend back to the Ordovician around 445 million years ago.
Read more about Horseshoe crab on Wikipedia →
Text from Wikipedia, CC BY-SA 4.0. Regulations on this page come from South Carolina Department of Natural Resources, not Wikipedia.
All 106 South Carolina species A–Z →
No size limit in South Carolina state waters.
Possession prohibited (commercial permit only).
Open year-round.
Horseshoe Crab is closed to harvest. Release it.