Abantennarius coccineus
A colorful, solitary frogfish with a complex taxonomic history.
The scarlet or freckled frogfish, *Abantennarius coccineus*, was first described as *Chironectes coccineus* and then *Antennarius coccineus*. It inhabits tropical waters, primarily in the Indo-East-Pacific region, but is absent from Hawaii. This fish stays in shallow ocean zones, hiding among reefs, rocky mounds, or sponges to avoid predators. Its coloration varies widely, from tan and brown to vivid reds and yellows, and it reaches a maximum length of 13 centimeters (5.1 inches). Taxonomically, it is identified by its pectoral rays, dark patches on its fins and body, and a lack of a distinct tail base. The species poses no harm to humans and is not targeted by fisheries for food, though it has been collected for studies on reef-fish abundance and as bycatch in shrimp trawling. Like other frogfish, it is a predatory carnivore with low sociality, interacting with its own kind only during mating. **Taxonomy** Originally classified as *Chironectes coccineus* by René Primevère Lesson in 1831, Lesson reclassified it as *Antennarius coccineus* later that same year. In 1904, David Starr Jordan and Barton W. Evermann synonymized *Antennatus coccineus* (then *Antennarius coccineus*) with *Antennatus drombus* (*Antennarius drombus*), but they were later separated based on differences in pectoral ray count, esca color, and the abundance of small dark blotches on the body and fins. The species was incorrectly named *Antennarius nexilis* by John Otterbein Snyder in 1904, *Antennarius stigmaticus* by James Douglas Ogilby in 1912, *Antennarius leucus* by Henry W. Fowler in 1934, *Abantennarius neocaledoniensis* by Édouard Le Danois in 1964, *Antennarius moai* by Gerald R. Allen in 1970, and *Antennarius immaculatus* by Le Danois in 1970. Despite many name changes, *Antennarius coccineus* was the most common name until 2012, when DNA profiling and genetic analysis showed the fish had been incorrectly placed in the *Antennarius* genus and was actually in *Antennatus*. It has since remained named *Antennatus coccineus* from 2012 onwards. **Description** The scarlet frogfish shows great variation in physical appearance. Reports describe it in colors such as pale tan, mottled red, and yellow, often with small dark spots on the body.
Quick Facts
- Taxon
- Abantennarius coccineus
Facts from the source article.
Lore & Background
Abantennarius coccineus was originally described as Chironectes coccineus by René Primevère Lesson in 1831, who reclassified it as Antennarius coccineus the same year. It was later synonymized with Antennatus drombus by David Starr Jordan and Barton W. Evermann in 1904, but subsequently separated due to differences in pectoral rays, esca color, and dark blotches. The species was incorrectly named multiple times, including Antennarius nexilis (1904), Antennarius stigmaticus (1912), Antennarius leucus (1934), Abantennarius neocaledoniensis (1964), Antennarius moai (1970), and Antennarius immaculatus (1970). It has since remained named Antennatus coccineus from 2012 onwards.
Reader's Guide
The scarlet frogfish holds significance primarily in taxonomic and ecological studies. Its long history of misidentification and reclassification—spanning multiple genera and species names over nearly two centuries—illustrates the challenges of distinguishing frogfish species based on morphology alone. The eventual use of DNA profiling in 2012 to reassign it to the genus Antennatus underscores the value of genetic analysis in resolving taxonomic uncertainty. Ecologically, it is a notable component of shallow reef communities in the Indo-East-Pacific, where it serves as an ambush predator of small fish and crustaceans. Its high resilience and non-vulnerable status suggest stable populations, though it has been collected as bycatch in shrimp trawling and for studies on reef fish abundance. The species' ability to change color and mimic other organisms highlights the adaptive strategies of frogfishes. Its solitary nature and specialized reproductive behavior—including external fertilization and a planktonic larval stage—are typical of the family Antennariidae. Overall, Abantennarius coccineus exemplifies the diversity and complexity of frogfish biology and taxonomy.
Did You Know?
- The scarlet frogfish can change color, appearing in tan, brown, bright red, or yellow, often with small dark spots.
- It can propel itself forward by expelling water through tube-like gill openings behind its pectoral fins.
- Its lure (illicium) is much shorter than typical frogfish lures, recorded at only 8.8% of normal length.
- The species was incorrectly named at least seven times before being placed in the genus Antennatus in 2012.
More in Frogfish and Dragonets 1-24
Spotted an error? Know more?
Reader corrections go straight into our review queue. Suggest an edit · How this site is sourced