How to Distinguish from Similar Species: This species looks most similar to Cucumaria miniata, of which it formerly was thought to be a pale variant. C. miniata has more robust, orange or brown buccal tentacles and its body is also orange or brown. C. miniata averages 45 madreporic bodies internally while C. pallida averages 9.
Geographical Range: Auke Bay, Alaska to Santa Rosa Island, CA.
Depth Range: Low intertidal to 91 m (mostly from 11-20 m)
Habitat: Under rocks and cobble
Biology/Natural History: This species lives mostly buried in the cracks between subtidal cobble. It suspension feeds by extending its buccal tentacles up into the water column. Spawning is from mid March to early May. Females release strands of eggs which later break up. The eggs are about 1/2 mm diameter.
Kozloff 1987, 1996
McEuen, F.S., 1986. The reproductive biology and development of twelve species of holothuroids from the San Juan Islands, Washington. Ph.D. thesis, University of Alberta (as C. fallax)
McEuen, F.S., 1987. Phylum Echinodermata, Class Holothuroidea. Pp. 574-596 in Strathmann, M.F. (ed), Reproduction and development of marine invertebrates of the northern Pacific coast.. University of Washington Press, Seattle, WA
McEuen, F.S., 1988. Spawning behaviours of northeast Pacific sea cucumbers (Holothuroidea: Echinodermata). Marine Biology (Berlin) 98: 565-585
General Notes and Observations: Locations, abundances, unusual behaviors:
Authors and Editors of Page:
Dave Cowles (2006): Created original page