Echinodermata. Actinozoa. Asteroidea
Description
Phylum Echinodermata
Class Asteroidea
Living in marine habitats
1) Body sagittal section through the madreporite: digestive system with mouth, stomach and pyloric ceca, anus and anal ceca. Water-vascular system, stone canal and radial canal.
2 e 3) Pedicellariae.
4) Ossicles of the endoskeleton.
5) Oral view of a sea star with ambulacral grooves and long podia.
6) Digestive system with pyloric ceca.
7) Transverse section of arm with evident podia and ampullae.
8) Transverse section of arm with skeletal elements.
Format
image/jpeg (901.12 kB)
wallchart
Subject
• Zoologia, Echinodermi, Tavola didattica
Object languages:
GermanSources
• Cassettiera B - 8
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