Anilao Brittlestars (Ophiuroidea)

This page links to photos of ophiuroids (brittlestars) we have seen on several dive trips to the Anilao area in the Philippines. We did not make a special effort to find and photograph brittlestars, so these pages represent only a small fraction of the species that are sure to be there. Many of our identifications are tentative. Members of this group appear to be quite variable and references to living specimens are slim. Descriptions in the scientific literature have been largely based on anatomical details such as the shapes and arrangement of the hard plates and spines that make up body, details that are hard to distinguish without having the animal in hand or under a good dissecting microscope. We welcome corrections at uwkwaj@yahoo.com.

Click on a thumbnail below to bring up a page with larger photos and information about that species; for variable species, several different thumbnails may load the same page.


Astroboa nuda

Astroboa tuberculosa?

Astroboa tuberculosa?

Astroboa tuberculosa?

Euryale aspera

Macrophiothrix martensi

Ophiarachna incrassata

Ophiarachnella gorgonia

Ophiolepis superba

Ophiomastix caryophyllata

Ophiomastix pictum

Ophiomastix? sp.

Ophioplocus giganteus

Ophiopsila polyacantha

Ophiothela mirabilis

Ophiothela mirabilis

Ophiothrix purpurea

Ophiothrix sp. 1

Ophiothrix sp. 2

Ophiothrix sp. 3

Ophiothrix sp. 4

Ophiuroidea sp. 1

Ophiuroidea sp. 2

References used for identification:

Coleman (2007)
Colin & Arneson (1995)
Gosliner et al (1996)
Hoover (1999)
Humann & DeLoach (2010)
Ryanskiy (2020)
iNaturalist

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