Sand dollar (with labels)

Echinodermata -- Physiology

Sand dollars

Dissection

Ten photographs of various stages of the dissection of a sand dollar with specific parts labeled.

Image 1: Sand Dollar - External Features (Aboral View)

Image 2: Sand Dollar - External Features (Oral View)

Image 3: Sand Dollar - Oral View (Close up)
- ambulacral groove
- mouth (behind spines)
- podia ('tube feet')

Image 4: Sand Dollar - Aboral View (Spines Removed)
- gonopore
- anus
- petaloid ambulacra

Image 5: Sand Dollar - Oral View (Spines Removed)
- anus
- mouth
- ambulacral groove

Image 6: Sand Dollar - Aboral View (Close Up)
- gonopore
- petaloid ambulacra

Image 7: Sand Dollar - Internal Features [two specimens in the photo]
- [left photo] - aristotle's lantern
- esophagus
- stomach
- anus
- intestine
- gonad

Image 8: Sand Dollar - Cross Section
- gonad
- esophagus
- aristotle's lantern
- mouth
- stomach

Image 9: Sand Dollar - Aristotle's Lantern (Side View)

Image 10: Sand Dollar - Aristotle's Lantern (Oral View)

State University of New York at Buffalo. Department of Biological Sciences

State University of New York at Buffalo. University Libraries

2005-11-07

IN COPYRIGHT - EDUCATIONAL USE PERMITTED. This Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. In addition, no permission is required from the rights-holder(s) for educational uses. For other uses, you need to obtain permission from the rights-holder(s).

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SandDollar02D

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SandDollar08D

SandDollar09D

SandDollar12D

SandDollar21D

SandDollar37D

SandDollar39D

SandDollar46D

Evolutionary Biology Digital Dissection Collections. BIO-001