BIOL 1407
LAB IMAGES
for
Invertebrates
Spring 2008
JGS
1

Attention:
BIOL 1407 82001 and 83073 Students
These images will be those that will
be used for the next Lab exam. Any
information in text, Lab Atlas or on
slide is fair question material.
2

Phylum Porifera
• Sponge anatomy to
know.
3

Sponge Spicules
• Sponges are heterotrophic
animals that are sessile as
adults.
• Sponges are metazoans
having no true tissue.
• The sponge body is made of
various cells in a spongin
matrix with spicules of
calcium carbonate or silica
for structure and formation.
4

Marine sponge examples
Phylum Porifera
5

Other Sponges
(Man Made, Plant Origin)
Luffa Sponge (plant)
Cellulose Sponge
Sponge Bob
6

Phylum Cnidaria
(stinging celled animals)
• Cnidarians are primitive heterotrophic diploblastic (two
layered) animals of marine and freshwater
environments. They capture prey using nematocysts
(stinging cells) containing cnidoblasts and nematocysts.
Polyp
or
Hydroid
Medusa
7

Class Hydrozoa
Obelia Feeding Polyp
Obelia Reproductive Polyp
Obelia Medusa
8

Class Hydrozoa
Hydra Anatomy
Hydra with bud 9

Class Scyphozoa
True Jellys
10

Class Cubozoa
Cube Jellies, Sea Wasp
11

Class Anthozoa
Corals, Sea Anemone
Coral Colony Polyps
Sea Anemone
12

Phylum Platyhelminthes
Flatworms
13

Class Turbellaria
Free-living Flatworms
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Class Trematoda
Flukes (parasitic)
P
A Lateral o
n s
t t
e e
r r
i i
o o
r r
15

Class Cestoda
Tapeworms (parasitic)
Tapeworm
Scolex and
immature
proglottids
Hooks
Tapeworm
Scolex
Hooks
Suckers
Immature
Proglottids
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