Crustaceans Active at night

longlegged spiny lobster

Panulirus longipes

iNaturalist Wikipedia

A nocturnal wonder of the Indo-Pacific, the longlegged spiny lobster is easily identified by its spindly limbs and star-dusted armor. This reclusive reef-dweller turns the nighttime seafloor into a theater of alien-like movement and vibrant color.

0 Sightings

0 Habitats

Quick Identification

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Size

Body length typically 20-25 cm (8-10 in), with a maximum of 30 cm (12 in); weights range from 0.5-1 kg (1.1-2.2 lbs).

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Colors

Dark reddish-brown to deep indigo body covered in numerous small, circular white spots; legs are similarly spotted or striped depending on the subspecies.

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Key Features

Two large, forward-pointing 'horns' over the eyes
Extremely long and slender walking legs
Carapace and abdomen densely covered in small white spots
No large pincer claws, typical of spiny lobsters
Pair of very long, thick, spiny antennae

When You’ll See Them

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Activity pattern Active at night

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Peak hours 8 PM - 4 AM

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Season Year-round

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Diet An opportunistic omnivore and scavenger that feeds on mollusks, small crabs, polychaete worms, and organic detritus.

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Habitat Shallow tropical coral reefs, rocky shorelines, and coastal lagoons with plenty of crevices for hiding.

public Geographic range

Where Does the longlegged spiny lobster Live?

Where Does the Longlegged Spiny Lobster Live? This vibrant marine species is native to the warm, tropical waters of the Indo-Pacific region. Its territory stretches from the eastern coast of Africa and the Red Sea across the Indian Ocean to the central Pacific islands. It is particularly abundant in the coral-rich archipelagos of Indonesia and the Philippines, and its range extends as far north as southern Japan and as far south as the northern coast of Australia and the islands of Oceania.

Basemap © OpenStreetMap contributors

10 Countries

42M km² Range

Least Concern Conservation

ID Indonesia

Marginal

PH Philippines

Marginal

AU Australia

Marginal

JP Japan

Marginal

Taiwan

Marginal

eco

iNaturalist / Verified observation data

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Behavior

The longlegged spiny lobster is a secretive, nocturnal crustacean that spends the daylight hours tucked deep within the recesses of coral reefs or under rocky ledges. While they are often solitary in their foraging, they are known to share high-quality 'dens' with other individuals during the day for protection against predators. Unlike their cold-water cousins, they lack large claws and rely on their thorny carapace and quick reflexes for defense.

When darkness falls, they emerge to navigate the reef flat using their sensitive antennae to detect chemical cues from food. They are remarkably agile, capable of walking rapidly over complex terrain on their elongated legs. If startled, they employ a 'caridoid escape reaction'—a powerful snap of the tail that propels them backward at high speed to avoid threats like octopuses or reef sharks. They are also known to produce a loud, rasping stridulatory sound by rubbing their antennae against a specialized plate near their eyes, likely to startle attackers.

photo_camera EverydayEarth exclusive

Camera Tips

Capturing the longlegged spiny lobster requires specialized underwater equipment, as they rarely venture into the extremely shallow intertidal zones where standard trail cams might work. Use a dedicated underwater trail camera or a high-end action camera with a dive housing rated for at least 15 meters. Because these lobsters are strictly nocturnal, your camera must have a 'no-glow' infrared flash. White light flashes often cause marine life to retreat and create significant 'backscatter'—where the light reflects off plankton and sand—obscuring your subject. Infrared allows you to see the intricate white spotting on their carapace without disturbing their natural foraging behavior.

The best placement for your camera is near the base of a coral head or a rocky ledge where you've spotted antennae protruding during the day. Mount the camera on a weighted tripod or a sand-screw mount about 2 to 3 feet away from the crevice entrance. Position the lens at a low angle, slightly upward, to capture the lobster's full profile and its exceptionally long legs as it emerges. If you are in a high-current area, ensure the camera is heavily weighted or tethered to a stable rock to prevent it from vibrating or being swept away.

To guarantee a sighting, use a scent-based attractant. A small mesh 'chum bag' filled with crushed mollusks, shrimp shells, or oily fish scraps tied approximately 18 inches in front of the lens will almost certainly draw a lobster out of its den. Set your camera to record 20-second video clips rather than stills; the way these lobsters use their antennae to 'taste' the water and their delicate, spider-like walking movements are best appreciated in motion. Aim for a new moon cycle to deploy your camera, as these lobsters are most active when ambient light is at its lowest, reducing their visibility to predators.

Similar Species

Species that look similar or are commonly confused with longlegged spiny lobster.

Painted Spiny Lobster

Features vibrant blue and green markings and white stripes on the legs rather than the uniform white spots of the longlegged species.

Ornate Spiny Lobster

Grows significantly larger and has distinctive blue-green legs with large ocellated spots on the side of its abdomen.

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Frequently Asked Questions

They are strictly nocturnal, staying hidden in deep reef crevices during the day and emerging only after dark to forage for food.

Using a mesh bait bag filled with pungent seafood like crushed clams or oily fish trimmings is the best way to lure them out of their dens for the camera.

They are scavengers and predators that eat a variety of reef organisms, including small snails, worms, crabs, and occasional plant matter.

They are only found in marine environments, though they can be found very close to shore in tropical regions with accessible coral reefs or rocky jetties.

Look for the namesake elongated walking legs and a body that is almost entirely covered in small white spots, unlike other species that may have stripes or solid colors.

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