Aboral surface with spines
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description
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. - PowerPoint PPT Presentation
Transcript of Aboral surface with spines
Aboral surface with spines
Central diskArm or ray
Eye spot (ocellus) at tip of each ray
spines
Madreporite
Ray or arm
madreporite
spine
pedicellaria
Pedicellaria 1X
Spines on ray
Pedicellaria 3X
Spine
Pedicellaria40X
Pedicellaria100X
Pedicellaria 400X
Eye spot (ocellus)
1. Tube feet in ambulacral groove2. Mouth3. Ambulacral ossicles
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3
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1. Tube feet in ambulacral groove2. Mouth3. Ambulacral ossicles
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Ambulacral ossicles
Tube feet
Tube feet 3X
Ambulacral ossicles 3X
Oral view of ambulacral groove
Tube feet 1X
1. Pyloric ceca2. Ambulacral ridge
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Pyloric ceca
Pyloric ceca
Ampullae
Ambulacral ridge
Gonads
Aboral surface removed showingPyloric stomach 1X
Contents of stomach
clam
clam
Ribs or spines
clam
stone
crab
Contents of stomach
Contents of stomach
stone
clam
Plate of another echinoderm
crab
Ribs or spinesUnknown glasslike sheet
Ring Canal
Stone canal 1X
Stone canal
Ambulacral ridge
Tube foot
ampulla
coelom
sucker
Pyloric cecaAmbulacral ridge
Ambulacral groove
Ambulacral ossicles
