Phylum? Subphylum? Common name? Arthropoda Chelicerata Horseshoe crab
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Phylum?Subphylum?Common name?
ArthropodaChelicerata
Horseshoe crab
Phylum?
Subphylum?
Common Name?
Arthropoda
Chelicerata
Sea spider
Phylum:
Common name:
Arthropoda
Amphipod
Common name? Isopod
What is this? An amphipod
What are these? Barnacles
What is this?
A gooseneck barnacle
What is this? A fish louse which is an isopod
What are these?Rock lice – which are isopods
A
B
C
D
E
F
G
A:
B:
C:
D:
E:
F:
Antenna
Cheliped
3rd Walking Leg
Carapace
Abdomen
Uropod
A
B C D E F
G
A:
B:
C:
D:
E:
F:
G:
Cardiac stomach
Pyloric stomach
Posterior gastric muscle
Digestive gland
Heart
Dorsal abdominal artery
Ostia of heart
AB
C
D
A:
B:
C:
D:
Proboscis
Pedipalp
Cephalothorax
Abdomen
CA
BD
A:
B:
C:
D:
Abdomen
Telson
Compound eye
Cephalothorax
Phylum?
Subphylum?
Common name?
Arthropoda
Crustacea
Copepod
Note that I am laterally flattened
What am I? An amphipod
Phylum? Subphylum?
Decapods
Fiddler Crab
Arthropoda
Crustacea
Phylum?Subphylum?Common name?
ArthropodaCrustacea
Copepod
Phylum?
Subphylum?
How does this animal feed?
Arthropoda
Crustacea
It is a filter feeder using modifiedlegs called cirri to grab particles from the water column
Both of these animals are?Isopods
B
EF
GH
I
C DA
• A: Antennae• B: Antennules• C: Cephalothorax• D: Abdomen• E: Cheliped• F: Walking legs• G: Swimmerets• H: Uropod• I: Telson
E
E
FC
D
A
B
• A: Anterior gastric muscle• B: Posterior gastric muscle• C: Gills• D: Heart• E: Rostrum• E: Cardiac stomach• F: Ostia of heart
C
A
B
D
E
Phylum?Subphylum?Common name?
ArthropodaChelicerata
Horseshoe crab
• A: Abdomen• B: Telson• C: Simple eye• D: Compound eye• E: Cephalothorax
G
AB C D
E
FIH
• A: Gastric teeth• B: Pyloric stomach• C: Heart• D: Gonad (Testis)• E: Dorsal abdominal artery• F: Intestine• G: Green gland• H: Digestive gland• I: Uropod
DA
BC
• A: Compound eye• B: Pyloric stomach• C: Mandibular muscle• D: Cardiac stomach
A
B
C
D
EF
G
• A: Antenna• B: Cheliped• C: Walking leg• D: Carapace• E: Abdomen• F: Telson• G: Antennule
Copulatory swimmeret
Opening of vas deferens
Abdomen
Cephalothorax
Proboscis
Phylum ArthropodaSubphylum Chelicerata
AB
C
D
• A: Proboscis• B: Pedipalp• C: Cephalothorax• D: Abdomen
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