1. Arthropoda
Phylum?
Subphylum?
Common name?
Chelicerata
Horseshoe crab

2. Phylum?
Subphylum?
Common Name?
Arthropoda
Chelicerata
Sea spider

3. Phylum:
Common name:
Arthropoda
Amphipod

4. Common name?
Isopod

5. What is this?
An amphipod

6. What are these?
Barnacles

7. What is this?
A gooseneck barnacle

8. What is this?
A fish louse which is an isopod

9. What are these?
Rock lice – which are isopods

10. A B G C D E F A: B: C: D: E: F: G. ____________ ____________

11. G A B C D E F A: B: C: Cardiac stomach D: E: F: G: Digestive gland
Pyloric stomach
Heart
Posterior gastric muscle
Dorsal abdominal artery
Ostia of heart G A B C D E F

12. F A B C D E A: B: C: _______________ D: E: F: G: _______________

13. A: B: C: D:
Proboscis
Pedipalp
Cephalothorax
Abdomen A B C D

14. A: B: C: D:
Abdomen
Telson
Compound eye
Cephalothorax A C B D

15. Phylum?
Subphylum?
Common name?
Arthropoda
Crustacea
Copepod

16. Note that I am laterally flattened
What am I?
An amphipod

17. Phylum? Subphylum?
Arthropoda
Crustacea
Decapods
Fiddler Crab

18. Arthropoda
Phylum?
Subphylum?
Common name?
Crustacea
Copepod

19. Arthropoda
Phylum?
Subphylum?
How does this animal feed?
Crustacea
It is a filter feeder using modified
legs called cirri to grab particles
from the water column

20. Both of these animals are?
Isopods

21. C D A B I G E H F

22. A: Antennae
B: Antennules
C: Cephalothorax
D: Abdomen
E: Cheliped
F: Walking legs
G: Swimmerets
H: Uropod
I: Telson

23. E A E B C F D

24. A: Anterior gastric muscle
B: Posterior gastric muscle
C: Gills
D: Heart
E: Rostrum
E: Cardiac stomach
F: Ostia of heart

25. Arthropoda
Phylum?
Subphylum?
Common name?
Chelicerata
Horseshoe crab C A D B E

26. A: Abdomen
B: Telson
C: Simple eye
D: Compound eye
E: Cephalothorax

27. B C A D E G F H I

28. 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

29. A D B C

30. A: Compound eye
B: Pyloric stomach
C: Mandibular muscle
D: Cardiac stomach

31. A B G C D E F

32. A: Antenna
B: Cheliped
C: Walking leg
D: Carapace
E: Abdomen
F: Telson
G: Antennule

33. Opening of vas deferens
Copulatory swimmeret
Opening of vas deferens

34. Subphylum Chelicerata
Phylum Arthropoda
Subphylum Chelicerata
Proboscis
Cephalothorax
Abdomen

35. A B C D

36. A: Proboscis
B: Pedipalp
C: Cephalothorax
D: Abdomen