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Slippery Dick

Halichoeres bivittatus

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Field-guide illustration of Slippery Dick (Halichoeres bivittatus), showing its diagnostic body shape and markings.
Illustration for identification. Features may vary.

Fun facts for your next surface interval

  • Its scientific name bivittatus points to the two-striped look.
  • A striped youngster and a green-and-pink adult can be the same species.
  • Sand can be a hiding place, so a disappearing wrasse has not necessarily swum far away.

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

The memorably named slippery dick is a wrasse with an identification challenge built into its life history. Initial-phase fish are pale with two dark lengthwise stripes, the stronger one passing through the eye. Terminal-phase adults become greenish with pink markings. Look for the small dark mark near the upper rear corner of the gill cover as another supporting clue.

Size and life stages

The species reaches approximately 14 inches, or 35 centimeters, in total length, although many fish encountered by divers are smaller. Body length and color phase should be recorded separately. A little striped individual is not automatically a different species from a larger green one. Photographing the entire fish preserves tail shape and both stripes for a later comparison.

Habitat and where to look

It uses reefs, seagrass and adjacent sand or rubble. These varied habitats make it worth watching the bottom during the quieter sections of a dive, not just at a colorful reef ledge. A wrasse moving among grass blades may disappear from view without leaving the area. Wait for a natural opening rather than brushing vegetation aside.

Range and local context

This is a western Atlantic species with a range that includes Florida, the Gulf region and the Caribbean. Florida Museum explicitly verifies it in Lake Worth Lagoon. That local evidence is useful for a Palm Beach identification guide, while remaining distinct from a claim about today's conditions, the best season to see it or its abundance at any particular site.

What is on the menu?

Slippery dicks search for small bottom-living animals, including crustaceans, worms and mollusks. The small mouth and mobile jaws are suited to picking food from the substrate. Follow the direction of a feeding pass with your eyes rather than following so closely that the fish must change course. An unhurried observation may reveal several different bites in succession.

Daily habits and behavior

Like other sand-burying Halichoeres wrasses, it can use the substrate as shelter. Color also changes as fish develop, so the adult green-and-pink pattern and the familiar double stripes belong in the same mental identification file. Never try to demonstrate burial by chasing a wrasse; a natural retreat is enough reason to leave that patch undisturbed.

Mating and the next generation

Reproduction involves eggs released into the water and a pelagic larval stage. Wrasse color phases are connected with development and reproductive biology, but an underwater glance does not reveal every individual's reproductive history. Use initial phase and terminal phase as descriptions of visible appearance, and avoid assigning a precise age or claiming that you watched a sex change.

Look-alikes and identification traps

A juvenile yellowhead wrasse has a blue lengthwise stripe on yellow rather than the slippery dick's characteristic pair of dark stripes. Other small wrasses remain possible when colors are muted. Check the cheek, gill-cover mark and lower stripe together. The unusual common name is memorable, but it is no substitute for checking the fish itself.

Observe without disturbing

Maintain buoyancy above sand and seagrass, keep your hands out of hiding places, and let a moving fish pass. A short sequence of images may capture both stripes better than one blurred frame. For the Stuart Scuba archive, a sighting with a date, approximate depth and visible identification marks is more useful than an unsupported claim of certainty.

Harvest, protection and eating safety

Restricted marine life: live collection only; no spearing

Can it be hunted or harvested?

Slippery Dick (Halichoeres bivittatus) 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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