The Crab on the Table and in the Stars: Mythology, Folklore, and How to Clean an Adriatic Spider Crab
From Greek mythology to Dalmatian fish markets — the surprisingly rich cultural history of the crab, plus a practical guide to cleaning spider crabs at home.
The Creature in the Stars
Before it appeared on anyone’s table, the crab appeared in the sky.
The constellation Cancer — tucked modestly between the brighter Leo and Gemini — owes its name to a story that almost didn’t survive. In the myth of Hercules and the Hydra, while the hero wrestled the nine-headed serpent in the swamps of Lerna, the goddess Hera sent a crab to bite his foot and break his concentration. Hercules, enraged, crushed it under his heel and continued the battle. The crab had failed in its mission, but Hera rewarded its loyalty anyway — placing it among the stars as the constellation Cancer, where it has remained ever since.
It is a minor story. The crab is a minor character — sent not to win but to distract, dispatched to the ankle of a hero and crushed before the scene is over. In Greek and Roman mythology, the crab appears as a fierce, devoted soldier, but ultimately vulnerable — loyal, well-meaning, and not quite the hero. And yet here it is, immortalized in the zodiac, giving its name to an entire sign of the calendar. There is something worth noting in that: the minor character who outlasted the main event.
A Creature the Whole World Has Had Opinions About
The Greeks were not alone in finding meaning in the crab. Cultures on almost every coast have.
In Chinese mythology, the crab is associated with the moon and the yin energy of water. According to legend, a giant crab was sent by the gods to challenge the hero Hou Yi — the same archer who shot down nine of the ten suns. The crab was defeated, but the story persisted, and the Mid-Autumn Festival retains traces of this lunar-crab symbolism to this day.
In the Philippines, the Mandaya people of Mindanao told of Tambanokano — a colossal crab born of the union between the Sun and the Moon, so enormous that when it seized the moon in its claws, it caused eclipses. Communities would shout and beat gongs to frighten it away and release the light.
In ancient Egypt, Greece, and Rome, crabs were associated with various water deities. The image of a crab with its arms fully extended was read as a sun in splendor — a talisman against shadow and uncertainty.
And in Africa — in a Zambian tradition recorded by ethnographers — the crab appeared as the Nkala, a sorcerous familiar associated with witchcraft: a creature four feet long, with a head at either end, that ate the shadows of people. To be without a shadow in that tradition was to be without protection. The crab, even in this darker role, was a creature of thresholds — between light and water, between the visible and the hidden.
The Aphrodisiac Question
The question of whether crab is an aphrodisiac is older than the word itself — which comes from Aphrodite, the Greek goddess who rose from the sea.
In ancient Rome, the roe of female crabs was prescribed as a physical love potion. In traditional Chinese medicine, crab ovaries were believed to carry a concentrated yin essence that could improve male vitality. Across Polynesia, newlywed couples consumed crab soup to stimulate fertility and sexual appetite. In Africa and the Caribbean, the crab’s shape and its association with water and female anatomy gave it a persistent reputation for arousal.
Does the science support any of this? Partially, and in the way that nutrition science usually does — obliquely, probabilistically, without magic.
Crab is high in zinc — one of the more zinc-dense foods available. Zinc is directly involved in testosterone synthesis and has a documented role in reproductive health in both men and women. Crab is also a good source of omega-3 fatty acids, which support cardiovascular function and circulation. Neither of these things is a love potion. But neither are they nothing.
What the ancient prescriptions were probably capturing, without the vocabulary to say so directly, was a simple observation: people who ate well — who had access to fresh seafood, good oil, clean wine — were healthier, more energetic, and more interested in each other. The crab on the table was a marker of abundance. Abundance, in most cultures, has always had erotic implications.
The Crab on the Adriatic Coast
Along the Dalmatian coast, the spider crab — Maja squinado, known as rakovica in Serbian and Croatian, grancigula in the island dialects — has been part of the local diet for as long as there have been people fishing the Adriatic. It is not a glamorous creature. It is spiny, awkward, and slow. It looks difficult to eat.
It is not difficult to eat. The shell breaks easily under firm hand pressure. The meat inside is sweet, delicate, and deeply flavored by the sea. It rewards anyone patient enough to clean it properly.
Spider crabs are subject to a closed season in Croatian waters — from June 1 to November 30 — which means the best time to buy them fresh along the coast is December through May. Outside this window, they can sometimes be found in larger fish markets, but the seasonal rhythm is worth respecting. A crab caught in its proper season is a different thing from one that is not.
How to Clean an Adriatic Spider Crab — Step by Step
What you will need: A sturdy surface, a crab cracker or heavy knife for the claws, a pick or thin skewer for extracting body meat, and a bowl for the good parts.
Step 1 — Cook first, clean after. Spider crabs are almost always cleaned after cooking, not before. Bring a large pot of generously salted water to a rolling boil — it should taste like the sea. Add the live crabs and cook for 12–15 minutes depending on size (a medium crab of around 400g needs approximately 13 minutes). Remove and allow to cool completely before handling.
Step 2 — Break the shell. Place the crab on its back. Press the top shell firmly with the heel of your hand. It will crack and give way easily — the shell becomes brittle after cooking. Lift it away entirely and set it aside. Some cooks use the empty shell as a serving bowl.
Step 3 — Remove what you don’t eat. Two things must go:
- The grey feathery gills (dead man’s fingers) — arranged in two rows inside the body cavity. Pull them away entirely. They are not toxic but are indigestible and taste of nothing.
- The stomach sac — a small grey pouch located just behind the eyes. Discard it.
Everything else is edible.
Step 4 — Extract the body meat. The body cavity contains sweet, fine white meat distributed in chambers. Work with your fingers, pulling sections apart and using a pick to reach into the smaller passages. Take your time — the meat is worth the effort.
Step 5 — The brown meat. The hepatopancreas — the brown, creamy matter lining the inside of the shell — is edible and intensely flavored. Some people love it; some find it too strong. In Dalmatian cooking it is often stirred into the sauce. Try a small amount before deciding.
Step 6 — Crack the claws. Use a crab cracker or the back of a heavy knife to crack each claw. The meat inside is denser and slightly richer than the body meat. Extract it cleanly and keep it separate — it deserves a moment of its own.
The cleaned meat is now ready to use. In the traditional Dalmatian recipe, it goes directly into the olive oil with onion and garlic, then wine, then tomato. From cleaning to table, the whole process takes less than an hour.
A Note on Health and Safety
Crab is a nutritionally dense food — high in protein, rich in zinc, selenium, and omega-3 fatty acids, with a relatively low calorie count for the amount of protein it provides. For most healthy adults, it is an excellent addition to the diet.
Those who should exercise caution:
Crab is a major allergen — shellfish allergy is one of the most common food allergies in adults and can cause severe reactions including anaphylaxis. Anyone with a known shellfish or crustacean allergy must avoid this dish entirely. Cross-contamination is a serious risk in kitchens where other shellfish are handled.
Crab is moderately high in cholesterol. Those managing cardiovascular disease or following a low-cholesterol diet should consume it in moderation and discuss their specific situation with a healthcare provider.
Crab must be fully cooked before consumption. Raw or undercooked crab poses a risk of foodborne illness, including Vibrio infection, which can be severe. The internal temperature must reach a minimum of 63°C (145°F). A properly cooked crab is opaque and white throughout; any translucency indicates undercooking.
Discard any crab that smells of ammonia — before or after cooking. This smell indicates spoilage and the crab should not be eaten under any circumstances.
Crab purchased live should be cooked the same day. Cooked crab can be refrigerated for up to 24 hours before use. It should not be left at room temperature for more than 2 hours.
Practical Takeaways
The spider crab is a seasonal, sustainable, and deeply underused ingredient in most kitchens outside the Adriatic coast. It is available from December through May in Croatian and Adriatic fish markets; in other regions, brown crab or Dungeness crab make excellent year-round substitutes.
Cleaning a spider crab at home is straightforward once you understand the structure. The shell breaks easily; the gills and stomach sac are easy to identify and remove; the meat — body and claw — is sweet, delicate, and richly flavored by the sea.
The mythology is optional. The crab does not need the constellation Cancer or the swamps of Lerna to be worth cooking. But it is a more interesting thing on the plate when you know it has been there, in one form or another, since before the word aphrodisiac existed.
Frequently Asked Questions
If you have questions about sourcing, cleaning, or cooking Adriatic spider crabs, we have answered the most common ones below.
Attic Recipes — digitizing and adapting Central European home cooking from the early twentieth century.