aboral surface with spines
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 PresentationTRANSCRIPT
![Page 1: Aboral surface with spines](https://reader036.vdocument.in/reader036/viewer/2022062411/568166f7550346895ddb561a/html5/thumbnails/1.jpg)
![Page 2: Aboral surface with spines](https://reader036.vdocument.in/reader036/viewer/2022062411/568166f7550346895ddb561a/html5/thumbnails/2.jpg)
Aboral surface with spines
Central diskArm or ray
Eye spot (ocellus) at tip of each ray
spines
Madreporite
Ray or arm
![Page 3: Aboral surface with spines](https://reader036.vdocument.in/reader036/viewer/2022062411/568166f7550346895ddb561a/html5/thumbnails/3.jpg)
madreporite
spine
pedicellaria
![Page 4: Aboral surface with spines](https://reader036.vdocument.in/reader036/viewer/2022062411/568166f7550346895ddb561a/html5/thumbnails/4.jpg)
Pedicellaria 1X
Spines on ray
![Page 5: Aboral surface with spines](https://reader036.vdocument.in/reader036/viewer/2022062411/568166f7550346895ddb561a/html5/thumbnails/5.jpg)
Pedicellaria 3X
Spine
![Page 6: Aboral surface with spines](https://reader036.vdocument.in/reader036/viewer/2022062411/568166f7550346895ddb561a/html5/thumbnails/6.jpg)
Pedicellaria40X
![Page 7: Aboral surface with spines](https://reader036.vdocument.in/reader036/viewer/2022062411/568166f7550346895ddb561a/html5/thumbnails/7.jpg)
Pedicellaria100X
![Page 8: Aboral surface with spines](https://reader036.vdocument.in/reader036/viewer/2022062411/568166f7550346895ddb561a/html5/thumbnails/8.jpg)
Pedicellaria 400X
![Page 9: Aboral surface with spines](https://reader036.vdocument.in/reader036/viewer/2022062411/568166f7550346895ddb561a/html5/thumbnails/9.jpg)
Eye spot (ocellus)
![Page 10: Aboral surface with spines](https://reader036.vdocument.in/reader036/viewer/2022062411/568166f7550346895ddb561a/html5/thumbnails/10.jpg)
1. Tube feet in ambulacral groove2. Mouth3. Ambulacral ossicles
2
11
1
1
1
3
3
![Page 11: Aboral surface with spines](https://reader036.vdocument.in/reader036/viewer/2022062411/568166f7550346895ddb561a/html5/thumbnails/11.jpg)
1. Tube feet in ambulacral groove2. Mouth3. Ambulacral ossicles
1
2
3
3
![Page 12: Aboral surface with spines](https://reader036.vdocument.in/reader036/viewer/2022062411/568166f7550346895ddb561a/html5/thumbnails/12.jpg)
![Page 13: Aboral surface with spines](https://reader036.vdocument.in/reader036/viewer/2022062411/568166f7550346895ddb561a/html5/thumbnails/13.jpg)
![Page 14: Aboral surface with spines](https://reader036.vdocument.in/reader036/viewer/2022062411/568166f7550346895ddb561a/html5/thumbnails/14.jpg)
Ambulacral ossicles
Tube feet
![Page 15: Aboral surface with spines](https://reader036.vdocument.in/reader036/viewer/2022062411/568166f7550346895ddb561a/html5/thumbnails/15.jpg)
Tube feet 3X
Ambulacral ossicles 3X
![Page 16: Aboral surface with spines](https://reader036.vdocument.in/reader036/viewer/2022062411/568166f7550346895ddb561a/html5/thumbnails/16.jpg)
Oral view of ambulacral groove
Tube feet 1X
![Page 17: Aboral surface with spines](https://reader036.vdocument.in/reader036/viewer/2022062411/568166f7550346895ddb561a/html5/thumbnails/17.jpg)
1. Pyloric ceca2. Ambulacral ridge
12
![Page 18: Aboral surface with spines](https://reader036.vdocument.in/reader036/viewer/2022062411/568166f7550346895ddb561a/html5/thumbnails/18.jpg)
Pyloric ceca
![Page 19: Aboral surface with spines](https://reader036.vdocument.in/reader036/viewer/2022062411/568166f7550346895ddb561a/html5/thumbnails/19.jpg)
Pyloric ceca
![Page 20: Aboral surface with spines](https://reader036.vdocument.in/reader036/viewer/2022062411/568166f7550346895ddb561a/html5/thumbnails/20.jpg)
Ampullae
Ambulacral ridge
Gonads
![Page 21: Aboral surface with spines](https://reader036.vdocument.in/reader036/viewer/2022062411/568166f7550346895ddb561a/html5/thumbnails/21.jpg)
Aboral surface removed showingPyloric stomach 1X
![Page 22: Aboral surface with spines](https://reader036.vdocument.in/reader036/viewer/2022062411/568166f7550346895ddb561a/html5/thumbnails/22.jpg)
Contents of stomach
clam
clam
Ribs or spines
![Page 23: Aboral surface with spines](https://reader036.vdocument.in/reader036/viewer/2022062411/568166f7550346895ddb561a/html5/thumbnails/23.jpg)
clam
stone
crab
Contents of stomach
![Page 24: Aboral surface with spines](https://reader036.vdocument.in/reader036/viewer/2022062411/568166f7550346895ddb561a/html5/thumbnails/24.jpg)
Contents of stomach
stone
clam
Plate of another echinoderm
crab
Ribs or spinesUnknown glasslike sheet
![Page 25: Aboral surface with spines](https://reader036.vdocument.in/reader036/viewer/2022062411/568166f7550346895ddb561a/html5/thumbnails/25.jpg)
![Page 26: Aboral surface with spines](https://reader036.vdocument.in/reader036/viewer/2022062411/568166f7550346895ddb561a/html5/thumbnails/26.jpg)
![Page 27: Aboral surface with spines](https://reader036.vdocument.in/reader036/viewer/2022062411/568166f7550346895ddb561a/html5/thumbnails/27.jpg)
Ring Canal
![Page 28: Aboral surface with spines](https://reader036.vdocument.in/reader036/viewer/2022062411/568166f7550346895ddb561a/html5/thumbnails/28.jpg)
Stone canal 1X
![Page 29: Aboral surface with spines](https://reader036.vdocument.in/reader036/viewer/2022062411/568166f7550346895ddb561a/html5/thumbnails/29.jpg)
Stone canal
![Page 30: Aboral surface with spines](https://reader036.vdocument.in/reader036/viewer/2022062411/568166f7550346895ddb561a/html5/thumbnails/30.jpg)
![Page 31: Aboral surface with spines](https://reader036.vdocument.in/reader036/viewer/2022062411/568166f7550346895ddb561a/html5/thumbnails/31.jpg)
![Page 32: Aboral surface with spines](https://reader036.vdocument.in/reader036/viewer/2022062411/568166f7550346895ddb561a/html5/thumbnails/32.jpg)
![Page 33: Aboral surface with spines](https://reader036.vdocument.in/reader036/viewer/2022062411/568166f7550346895ddb561a/html5/thumbnails/33.jpg)
Ambulacral ridge
![Page 34: Aboral surface with spines](https://reader036.vdocument.in/reader036/viewer/2022062411/568166f7550346895ddb561a/html5/thumbnails/34.jpg)
![Page 35: Aboral surface with spines](https://reader036.vdocument.in/reader036/viewer/2022062411/568166f7550346895ddb561a/html5/thumbnails/35.jpg)
Tube foot
ampulla
coelom
sucker
Pyloric cecaAmbulacral ridge
Ambulacral groove
Ambulacral ossicles