Phylum?

Class?

Common name?

Cnidaria

Anthozoa

Sea pansy

Renilla is related to corals but differs from them in that it is a collectionof polyps having different forms and functions.

Phylum?

Class?

Body form?

Cnidaria

Hydrozoa

Polyp

Obelia colony

Phylum?

Class?

Cnidaria

Hydrozoa

Feeding polyp

Reproductive polyp

Medusa bud – produced asexually

Phylum?

Class?

Cnidaria

Hydrozoa

What is this? This is an Obelia medusa as seenunder a compound microscope

How does this reproduce? Sexually by producing eggs or sperm

Phylum?

Class?

Cnidaria

Hydrozoa

What is the significance of thevelum in thetaxonomy of thisorganism?

The velum isa characteristicof hydrozoanjellies. ThusGonionemus isin Class Hydrozoa

A

B

C

Goniomenus

A:

B:

C:

D:

Exumbrella

Subumbrella

Manubrium

D

Velum

C

A BA:

B:

C:Tentacles

Oral arm

Gonad

Phylum?Class?Physalia Tentacle Cnidocytes with nematocysts

Identify CellsCnidariaHydrozoa

Phylum CnidariaClass HydrozoaPhysalia Tentacle

Cnidocytes with nematocysts

Phylum CnidariaClass HydrozoaPhysalia Tentacle

Nematocyst1. Identify cell

Cnidocyte

2. Identify structure within cell

Phylum CnidariaClass HydrozoaPhysalia Tentacle

Cnidocytes with undischarged? Nematocysts

Bud (AsexualReproduction)

Tentacle: Note Cnidocytes

Phylum?ClassHydra - Polyp

CnidariaHydrozoa

Phylum CnidariaClass HydrozoaObelia

What stage of the lifecycle does this represent?(Sexually Reproduces)

Medusa stage

Phylum CnidariaClass HydrozoaObelia Colony – A Colony of?Asexual Stage

Feeding Polyp

Reproductive Polyp

MedusaBud

Polpys

Phylum? Class? Common Name?Cnidaria Hydrozoa Portuguese Man-of-War

Common Name?By-the-wind sailor or Velella

B

A

Common name?Phylum?Class?

Phylum? Class?

Common Name?

Cnidaria

Scyphozoa

Moon Jellly

Phylum? Class? Common Name?Cnidaria Anthozoa Sea Anemone

Kingdom?

Phylum?

Common name?

How does this animal move?

How does this animal captureits food?

Animalia

Ctenophora

Comb Jelly

Via cilia. They have 8 rows ofciliated combs

They have specialized cells calledcolloblasts on their tentacles that secrete a “glue-like” substance.

B

C

DA

E

A:

B:

C:

D:

E:

Cnidocyte

Epidermis

Mesoglia

Gastrodermis

Gastrovascular cavity

What is this?

Kingdom?Phylum?Class?

A

B

CD

E

• Hydra• Kingdom Animalia• Phylum Cnidaria• Class Hydrozoa• A: Gastrodermis• B: Tentacle• C: Gastrovascular cavity• D: Epidermis• E: Gastrovascular cavity

Phylum?Class?What is this?

A

F

D

E

G

CB

Phylum Cnidaria Class Hydrozoa

Obelia

• A: Feeding polyp• B: Medusa bud• C: Tentacles• D: Medusa• E: Ciliated planula larva• F: Reproductive polyp• G: Obelia colony

Kingdom?Phylum?Class?

C

B

D

A

E

Kingdom Animalia Phylum Cnidaria

Class Scyphozoa (The Moon Jelly)

• A: Exumbrella• B: Subumbrella• C: Mouth• D: Oral arms• E: Mesoglia

B

AC

D

• A: Feeding polyp• B: Reproductive polyp• C: Medusa• D: Ciliated planula larva

B

C

DA

E

• A: Cnidocyte• B: Epidermis• C: Mesoglia• D: Gastrodermis• E: Gastrovascular cavity

AB

C

D

F

E

• A: Tentacle• B: Peristome• C: Mouth• D: Pharynx• E: Gastrovascular cavity• F: Basal disc

Gonionemus medusa

AB

D

E

C

Phylum?Class?

Phylum Cnidaria Class Hydrozoa (It has a velum!)

• A: Manubrium• B: Radial canal• C: Gonad• D: Velum• E: Tentalce

A

C

D

B

E

Phylum?Class?Common name?

Phylum Annelida Class Polychaeta

The Sandworm (A carnivorous predator)

• A: Jaws• B: Tentacles• C: Segment• D: Parapodium• E: Setae

EF

A

C

D

B

• A: Eyes• B: Segments• C: Setae• D: Parapodium• E: Pharynx• F: Jaws