Electric Fileclam
Ctenoides ales
Max Size
See in AppMax Weight
—
Max Depth
20 m
Description
Along with Ctenoides scaber, they are among the only bivalves known to have light displays.
Description
A small bivalve that resembles a scallop that shows a bright orange–red fringe of soft filaments/tentacles extending out between the two valves.
The exposed soft tissue (mantle) is described as bright red–orange, with many long tentacles/filaments radiating outward; these can look disproportionately long compared to the shell.
Along the mantle lip runs a striking flashing line (often perceived as white/blue).
Distribution
The electric clam is widespread throughout the tropical waters of the central Indo-Pacific region from Indonesia to Palau Islands and New-Caledonia. It is typically a benthic species, commonly found around 5–20 m depth. It often hides in reef crevices, showing its mantle (and flashes) when disturbed.
Biology
The flashing effect is not bioluminescence: the mantle edge has two sides — one highly reflective “mirror-like” side and one much less reflective side. By rapidly furling/unfurling that edge, it creates a strobe-like flash from ambient light.
The reflective area is packed with silica nanospheres (~340 nm wide), which contribute to the strong reflection.
Where to Find
Colors
Habitat and Environment
Benthic
Similar Species
Frequently Asked Questions
Is Electric Fileclam dangerous?
Electric Fileclam has no known danger to humans. However, always observe marine life responsibly.
Where can you find Electric Fileclam?
Electric Fileclam can be found in: Flores Island, Malaysia East, Taiwan, Vanuatu, Brunei, Japan South, Indo-Pacific Central, Indo-Pacific, Papua New Guinea, Malaysia, Japan, Indonesia, Palau, Philippines, Solomon Islands, New Caledonia, Micronesia.
How deep does Electric Fileclam live?
Electric Fileclam can be found at depths of up to 20 meters.