Wikipedia:Pagipadasan: Paggiddiatan a nagbaetan dagiti rebision

The '''slate pencil urchin''', ''Eucidaris tribuloides'', is a cidaroid [[sea urchin]] that inhabits [[littoral]] and sub-littoral regions of the [[Atlantic Ocean]]. As a member of the [[basal echinoid classclade|basal cladeechinoid class]] Cidaroida, its morphological, developmental and molecular genetic characteristics make it a phylogenetically interesting species to s