BIOL 197L – LAB #8 – INVERTEBRATE
DIVERSITY AND ANATOMY II
Which phyla did we study in lab?
Phylum Arthropoda
Subphylum Crustacea
Phylum Nematoda
Phylum Arthropoda
Class insecta
Phylum Echinodermata
What phylum does this organism belong to?
What other classification can be used to
describe it?
Arthropoda
Subphylum Crustacea
Genus Procambrus
Identify:
Which one of these organisms is a
female; which is a male?
Note the swimmerets
Male
Female
Identify:
Identify:
Antenna
Identify:
Antenna
Eye
Identify:
Antenna Head
Eye
Identify:
Antenna Head
Eye
Thorax
Identify:
Antenna Head
Eye
Thorax
Carapace
Identify:
Antenna Head
Eye
Thorax
Carapace
Abdomen
Identify:
Antenna Head
Eye
Thorax
Abdomen
Carapace
Swimmerets
Identify:
Antenna Head
Eye
Thorax
Abdomen
Carapace
Swimmerets
Tail
Identify:
Antenna Head
Eye
Abdomen
Thorax
Carapace
Swimmerets
Walking legs
Tail
Identify:
The gills
Identify:
The heart
The holes in the crawfish’s heart are
known as:
Ostia
Identify:
The stomach
Identify:
Structure
Purpose
A green gland
Excretion of wastes
What phylum does this organism belong to?
What other classifications can be used to
describe this organism?
Arthropoda
Class Insecta
Order Orthoptera
Genus Romalea
Identify:
Identify:
Head
Identify:
Head
Thorax
Identify:
Head
Thorax
Abdomen
Identify:
Head
Thorax
Abdomen
Fore wing
Identify:
Head
Thorax
Abdomen
Fore wing
Hind wing
Identify:
Head
Thorax
Abdomen
Fore wing
Hind wing
Spiracles
Identify:
Head
Thorax
Abdomen
Fore wing
Hind wing
Mouthparts
Spiracles
Identify:
Head
Thorax
Abdomen
Fore wing
Hind wing
Compound eye
Mouthparts
Spiracles
Identify:
Head
Thorax
Abdomen
Fore wing
Hind wing
Ocelli
Compound eye
Mouthparts
Spiracles
Identify:
Head
Thorax
Abdomen
Fore wing
Hind wing
Antenna
Ocelli
Compound eye
Mouthparts
Spiracles
The type of sound production that is
produced by grasshoppers is:
Stridulation
Identify:
Structure
Purpose
Fore wings
They serve as a covering for the hind
wings when at rest
The fore wings are borne on the
mesothorax
Identify:
Hind wings
Note the wing veins
What is the tracheae?
The air tubes or gas exchange system
Identify:
Structure
Purpose
Spiracles
The site of oxygen diffusion (the
spiracles open up into the system of
tracheal tubules. These two body parts
constitute the respiratory system of
the grasshopper.)
Identify:
Structure
Purpose
Tympanic membrane
Serve as an organ of hearing
What type of coelom does Romalea have?
Hemocoel
What type of circulation does the
grasshopper have?
Open circulation
Identify:
Structure
Purpose
Crop
Site of food storage
Note that the esophagus is before the
Crop, if something is pinned there, it
could be the esophagus
Identify:
Structure
Purpose
Gastric ceca
Secrete digestive enzyme and aid in
food absorption
Identify:
Structure
Purpose
Stomach
Where digestion takes place
Identify:
Structure
Purpose
Malphigian tubules
These tubules remove wastes and salts
from the blood
The Malphigian tubules may also look
like #9:
Identify:
Structure
Intestines
Identify:
Structure
Rectum
Identify:
Ventral nerve cord
Another image for examination:
Identify the male and female Romalea.
Identify:
Structure
Purpose
Female
Male
Identify:
Female
Male
Ovipositor (the
Site of egg dispersal)
What phylum does this organism
belong to?
Nematoda
Which genera did we study that are in
the phylum Nematoda?
Turbatrix (the vinegar eel)
Trichinella
Ascaris lumbricoides
Identify:
Phylum
Genus
Nematoda
Trichinella
Encysted in the muscle tissue of the pig
Identify:
Phylum
Genus
Female or male?
Does this organism cause a disease? If yes, what is the disease
called?
Nematoda
Trichinella
Female
Yes, trichinosis
Nematodes (AKA round worms) are
commonly dioecious and they use a
hardened structure known as a spicule
during copulation.
What phylum does organism belong to?
What genus does this organism belong to?
Echinodermata
Asterias
What are two unique features of the
Echinodermata?
Calcareous endoskeletons
Water vascular systems
Their larvae are bilaterally
symmetrical, while the adults exhibit
radial symmetry
Identify:
Structure
Pupose
Madreporite
The intake of water into the water
vascular system
Located on the aboral surface
Spines
Identify:
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