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Sharptail Eel

Myrichthys breviceps

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Field-guide illustration of Sharptail Eel (Myrichthys breviceps), showing its diagnostic body shape and markings.
Illustration for identification. Features may vary.

Fun facts for your next surface interval

  • It is a snake eel, not a moray: the little pectoral fins help give it away.
  • The end of the tail is a hard point without a fin fringe.
  • Its early larva is transparent and leaflike, very different from the spotted adult.

Florida and local context

Lake Worth Lagoon / Blue Heron Bridge, Palm Beach County: Florida Museum checklist explicitly marks this species verified. This documents occurrence, not local abundance.

Documented regional presence is not a guarantee of an encounter or a measure of how common this animal is at your dive site.

How to recognize this animal

A sharptail eel is a snake eel with a long cylindrical body and a blunt, short snout. Large pale spots, often with yellow centers, cover its darker body; smaller yellow markings decorate the head. Look for small pectoral fins behind the gill openings. The extreme tail tip is hard and finless, explaining the common name and providing a valuable identification clue.

Size and life stages

The reported maximum is about 40 inches, or 102 centimeters, in total length. A partly hidden eel may reveal only a fraction of that body. Do not turn a visible head-and-neck segment into a confident whole-animal measurement. If it swims across open bottom naturally, a full-body photograph is more informative than an estimate made while it is concealed.

Habitat and where to look

Sand, seagrass, coral rubble and reef surroundings provide habitat. The species spends time close to or within the substrate, where its patterned body can blend into mixed light and debris. Watch gaps between rubble pieces without moving them. A fin kick can disturb both the eel and small animals hidden in the same patch of bottom.

Range and local context

Sharptail eels occur in the western Atlantic, including Florida, Bermuda and the Caribbean, with the range extending toward Brazil. Florida Museum explicitly verifies this species in Lake Worth Lagoon. That is a documented local occurrence, not a claim of abundance. The correct habitat and a patient observer can still produce a dive with no eel sighting at all.

What is on the menu?

Its diet includes bottom-living invertebrates such as crustaceans and echinoderms. The teeth are relatively short and suited to this feeding style, rather than resembling the conspicuous long teeth associated with some morays. A moving eel may be searching through crevices for food. Let it investigate naturally instead of uncovering animals or placing potential prey in its path.

Daily habits and behavior

The pointed tail and elongated body suit a life closely associated with loose substrate and small spaces. The dorsal fin begins well forward, near the nape, but does not continue around the hard tail tip. Small pectoral fins distinguish this snake eel from a moray. These structural features remain useful when color looks muted or the pale spots overlap in a photograph.

Mating and the next generation

Like other true eels, the species has a pelagic early life stage with a transparent, leaflike leptocephalus larva. That is very different from the long, patterned adult exploring the bottom. The available species references do not establish a local spawning calendar. A single adult sighting cannot tell a diver where its larval journey began or how far it traveled.

Look-alikes and identification traps

Goldentail and other morays lack pectoral fins and have a continuous fin edge around the tail rather than a hard finless point. Spotted snake eel has a different spotted pattern, typically dark markings on a paler background. Compare the spots, pectoral fins and tail together. An eel's outline alone is insufficient when most of its body remains hidden.

Observe without disturbing

Do not put fingers into holes or try to lift the tail free of sand. Maintain space so a foraging eel can cross your view and return to cover. Photograph only the parts it exposes naturally. If the tail or pectoral area remains hidden, record those missing clues and keep the identification provisional rather than disturbing the animal to prove it.

Harvest, protection and eating safety

Restricted marine life: live collection only; no spearing

Can it be hunted or harvested?

Sharptail Eel (Myrichthys breviceps) is restricted tropical ornamental marine life, not an ordinary food-fishing species or a blanket no-take species. Where collection is lawful, a saltwater fishing license is required unless exempt. Land and keep the fish alive with adequate circulation or aeration. No species-specific size limit is listed. Daily limit: five of this species within 20 marine-life organisms total per person. Two-day possession maximum: ten of this species within 40 organisms total. Recreational sale is prohibited.

Florida seasons and areas

No annual recreational closed months are listed for this marine-life species. Collection is prohibited within the designated Blue Heron Bridge dive-site boundary and throughout Biscayne National Park. Florida marine-life rules also apply in adjacent federal waters on both coasts. Check the exact sanctuary, park and refuge zone before collecting. Western Dry Rocks’ designated one-square-mile area is closed to all fishing April 1–July 31 annually.

Can it be speared?

No. Spears are not authorized recreational gear for this regulated tropical marine-life fish. Use only lawful live-collection methods, such as permitted hand-held, barrier or drop nets or a slurp gun, and comply with the live-landing requirement.

Is it safe to eat?

Not recommended as a food target. This species is regulated for live collection, and this guide does not certify it as safe to eat. Check Florida DOH guidance before eating any locally caught fish. Cooking does not remove all marine toxins, and legal collection is not evidence of food safety.

Before you act: This recreational overview is not permission to collect or spear at your dive site. Confirm the species, date, management area, state or federal waters, gear, licenses and current local closures. Identification artwork cannot establish an identification or guarantee seafood safety.

Official rules and health guidance

Reviewed 2026-11-10. Rules and advisories can change; check the linked authorities before harvesting or eating.

Sources and review

Reviewed 2026-11-10.

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