Colpodaspis thompsoni is known in the Marshalls from specimens observed at Enewetak, Kwajalein and Ailinginae Atolls. All of the earlier specimens were on lagoon reefs and pinnacles, under dead coral at depths of 1 to 10 meters. Many more were seen by Christina Sylvester in Kwajalein reef quarries at 1 to 2m depth, and there appear to also be good numbers under small rocks on the eastern seaward reef at depths of 8 to 15m. Sizes ranged from 2 to 5mm. The first three photos below show a 4 to 5mm specimen found as one of three under a Kwajalein lagoon reef rock in about 4m of water on 22 February 2009.
Below is one of the specimens found on an Enewetak Atoll lagoon reef.
The specimen below was found under a rock on a Kwajalein Atoll lagoon reef on 21 February 2010.
The animal below was under a rock on a Kwajalein Atoll lagoon pinnacle at a depth of about 5m on 6 June 2010.
The specimen below from Ailinginae Atoll was found by Ken Cone and Beth Van Zummeren.
Created 28 January 2007
Updated 12 April 2021