echinodermata diagrams

1-5

madreporite, stone canal, axial organ, ring canal, radial canal

6-10

ampulla, muscle, valve, muscle, podium

11-14

ampulla, tube foot, polian vesicle, tiedemann’s bodies

tube feet, ambulacral groove, pedicellaria, mouth, ambulacral spines, tube feet

1-4

gonopores, arm, spines, papulae

5-8

madreporite, anus, pedicellaria, optical tube foot

1-4

stomach retractor muscle, cardiac stomach, pyloric duct, gonad

5-8

pyloric stomach, rectum, rectal caecum, ambulacral ossicles

9-12

ampulla, coelom, ossicles, pyloric caecum

1-5

spine, coelom, radial canal, ossicle, radial haemal sinus

6-10

podium, spine, ossicle, radial nerve, ampulla

11-14

pedicellaria, ossicle, pyloric caecum, papula

gametes, zygote, motile blastula, bipinnaria larva, early branchiolaria larva, late branchiolaria larva

tridentate, ophiocephalus, trifoliate, globiferous

1-5

ambulacral region, madreporite, base of spine, anus, genital plate

6-9

ocular plate, opening of tube feet, base of pedicellaria, interambulacral region

1-5

ambulacral region, pedicellaria, spine, peristomial membrane, mouth

6-10

tooth, oral tube foot, peristomial gill, tube feet, interambulacral region

1-5

axial organ, stone canal, test, spine, gonad

6-9

esophagus, siphon, radial canal, ampulla

10-13

small intestine, aristotles lantern, large intestine, rectum

1-4

esophagus, ring canal, polian vesicle, compass

5-8

auricula, radial canal, compass depressor muscle, radial canal

9-12

ampullae, tooth, jaw retractor muscle, jaw protractor muscle

13-16

dental sac, compass elevator muscle, axial organ, stone canal

gametes, zygote, motile blastula, echinopluteus larva, metamorphosed urchin

disc, spine, pinnule, cirrus, calyx

introvert, tube feet, ambulacrum, anus, tentacles

1-4

ring canal, madreporites, introvert retractor muscle, stomach

5-8

mesentery, ampulla, longitudinal muscle, gonoduct

9-12

intestine, gonad, anus, coaca

13-17

cloacal muscle, polian vesicle, respiratory tree, ampulla, tentacles