Earthworm (with labels)

Annelida -- physiology

Earthworms

Dissection

Seven photos of an earthworm in various stages of dissection with various parts labeled. Two photos shows the worm being held open with pins.

Image 1: Earthworm - External Features
- clitellum
- mouth
- anus

Image 2: Earthworm - Ventral Anterior View
- male genital pore
- sperm groove
- clitellum

Image 3: Earthworm - Anterior (Close Up)
- setae

Image 4: Earthworm - Internal Features [pins are used to hold the specimen open]
- pharynx
- 'heart'
- crop
- gizzard
- intestine
- septum
- dorsal blood vessel
- seminal vesicles
- anterior spermatheca

Image 5: Earthworm - Internal Features (Seminal Vesicles Removed) [pins are used to hold the specimen open]
- pharynx
- 5 'hearts'
- gizzard
- crop

Image 6: Earthworm - Internal Features (Close Up)
- Posterior - Anterior
- intestine
- gizzard
- crop
- dorsal blood vessel
- esophagus
- 'heart'
- nerve cord
- ventral blood vessel

Image 7: Earthworm - Cross Section
- digestive tract
- typhlosole
- longitudinal muscles

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

State University of New York at Buffalo. University Libraries

2005-10-03

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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Image

EarthWorm1-39D

EarthWorm2-32D

EarthWorm2-32D

EarthWorm4-09D

EarthWorm5-20D

EarthWorm6-24D

EarthWorm7-25D

Evolutionary Biology Digital Dissection Collections. BIO-001