Pterobranchia. long slender transparent brown tubes; sometimes forked near the base; ~8 mm long zooids dark reddish brown; 2 tentacles; base of colony completely covered with layer of foram tests and other skeletal detritus10 Jan 20181
Size: 1825px × 1369px
Photo credit: © SBS Eclectic Images / Alamy / Afripics
License: Licensed
Model Released: No
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