'Ambulacral groove' presentation slideshows

Aboral surface with spines

Aboral surface with spines. spines. Central disk. Arm or ray. Madreporite. Ray or arm. Eye spot ( ocellus ) at tip of each ray. spine. madreporite. pedicellaria. Pedicellaria 1X. Spines on ray. Pedicellaria 3X. Spine. Pedicellaria40X. Pedicellaria100X. Pedicellaria 400X.

526 views • 35 slides

Phylum Echinodermata

Phylum Echinodermata. Phylum Echinodermata. Defining Characteristics A complex series of fluid filled canals with numerous flexible feeding and locomotory appendages 5 pointed radial symmetry in adult. Echinoderms Skeleton. Have an internal skeleton of calcium carbonate

450 views • 29 slides

Phylum Echinodermata

Phylum Echinodermata. Phylum Echinodermata. Radially symmetrical. Have dermal skeleton which consists of calcareous ossicles that may develop into spines. With water vascular system which connect with exterior by a pore( madreporite ).

469 views • 18 slides

Sea Star

328 views • 11 slides