Costa Rica Species
Mulloidichthys dentatus
AnimaliaHighest rank in taxonomy. Groups all life into domains: Animalia, Plantae, Fungi, etc.IUCN LCInternational Union for Conservation of Nature — the world authority on species extinction risk, using standardized criteria. — Least Concern — widespread and abundant; not at immediate risk of extinction.In ProgressCurrent stage of this record in the editorial review workflow. Recent Sighting

Mulloidichthys dentatus

Mexican Goatfish

(Richardson, 1848)

Detailed Texts Multi-lang
A slender fish with two long, sensory barbels on the chin used for detecting prey. It is typically yellowish-white with a distinct yellow lateral stripe and can change color rapidly.

Added by

Anonymous Curator

Reviewed by

Under Review

Last modified by

Julia Trouin

TaxonomyBiological classification ranks placing this species within the tree of life, from Kingdom down to Genus.

PhylumRank below Kingdom. Groups organisms sharing a fundamental body plan (e.g., Chordata = vertebrates and some invertebrates).Chordata
ClassRank below Phylum. Subdivides by structural traits (e.g., Mammalia, Aves, Reptilia, Insecta).Actinopterygii
OrderRank below Class. Groups related families sharing common ancestry (e.g., Carnivora, Primates).Perciformes
FamilyRank below Order. Groups closely related genera (e.g., Felidae = cats, Canidae = dogs).Mullidae
GenusRank just above Species. The first word in the two-part binomial scientific name.Mulloidichthys
Taxonomic AuthorityThe scientist who first formally described and published this species, followed by the year of publication.(Richardson, 1848)
Record Completeness
93%
Coming soon

Ecology & StatusHow this species lives: habitat preferences, diet, behavior, population status, and role in its ecosystem.

OriginWhether the species is native (evolved here), endemic (found only here), or introduced by human activity.

Native

Population TrendDirection of change in population size over time: increasing, stable, decreasing, or unknown.

Stable

Breeding SeasonTime of year when this species typically reproduces or flowers.

Spring

Trophic RolePosition in the food chain: producer, herbivore, carnivore, omnivore, decomposer, or parasite.

Carnivore

Recent SightingsWhether this species has been observed in the wild in Costa Rica within recent years.

Yes

Habitat SummaryOverview of the specific ecosystems and environments where this species is found in Costa Rica. Multi-lang

Found over sandy and rocky bottoms in coastal areas and reefs of the Eastern Pacific. Frequently encountered in shallow to moderate depths.

BehaviourDaily activity patterns, movement, territory use, foraging style, and seasonal behavioral changes. Multi-lang

Diurnal searcher. During the day, it is often seen in small groups swimming slowly, probing the substrate with its barbels.

Social ActivitySocial structure: whether the species is solitary, paired, or colonial; hierarchy and communication. Multi-lang

Gregarious; often observed in small to medium-sized aggregations.

Feeding GuildWhat the species eats, how it forages or hunts, and its role as a consumer in the food web. Multi-lang

Benthic invertebrate feeder.

Trophic Chain DetailsSpecific interactions in local food webs: prey species, predators, competitors, and scavengers. Multi-lang

Feeds on small crustaceans, worms, and other small invertebrates hidden in the sand.

Reproductive BehaviourMating strategies, courtship displays, nesting or spawning behavior, and parental care. Multi-lang

Pelagic spawner; eggs are released into the water column.

Physical Measures

Length (cm)

10.0 - 30.0 cm

Weight (Grams)

50 g - 600 g

Offspring per cycleTypical number of young (live births, eggs, or seeds) produced by one adult in a single reproductive event or breeding season.50000 - 200000
Sexual DimorphismObservable physical differences between males and females of the same species (e.g., size, coloration, features).No

Lifespan

Sexual MaturityAge at which the individual becomes capable of reproducing for the first time.

1 - 2 Years

Gestation / IncubationDuration from fertilization to birth (mammals) or to hatching (egg-laying species).

--

Lifespan EstimatedExpected duration of life from birth to natural death under wild conditions.
Males4 - 7 Years
Females4 - 7 Years

Evolutionary AdaptationsInherited traits and behaviors that improve the species' survival and reproduction in its specific environment. Multi-lang

The chin barbels are highly developed chemosensory organs, allowing the fish to probe the sand and 'taste' for buried invertebrates.

Main ThreatsDocumented pressures reducing the population: habitat loss, hunting, disease, climate change, and invasive species. Multi-lang

Generally not a primary commercial target, though it is taken as bycatch in artisanal fisheries.

Interesting FactsSurprising or notable facts that highlight what makes this species unique or ecologically important. Multi-lang

Goatfish are known for their ability to retract their barbels into a special groove under the chin when not in use.