Lab Exam - pictures/diagrams

trochophore larva

veliger larva

bipinnaria larva

brachiolaria larva

young sea star

name + label

Leucosolenia, an asconid sponge, class calcarea, phylum porifera
1-osculum
2-spicules

name + label

sycon, class calcarea, phylum porifera
1- osculum
2- finger-like projections

name and label

syconoid sponge, class calcarea, phylum porifera
A- mesophyll
B- radial canal
C- incurrent canal
D- atrium/spongocoel

name + label

Syconoid sponge, class calcarea, phylum porifera
1- choanocyte
2- mesohyl
3- pinacocyte
4- radial canal

name + label

Hydra, class hydrozoa, phylum cnidaria
1- anterior tentacles
2- hypostome
3- pedal disk

Hydra budding: class Hydrozoa, Phylum Cnidaria

name + label

Hydra (cross section): class Hydrozoa, phylum Cnidaria
A- gastrovascular cavity
B- gastrodermis
C- mesoglea
D- epidermis

1

gastrovascular cavity - the pale area inside the stalk and polyp

2

gastrozooid/hydranth - feeding polyp with tentacles

3

gonozooid/gonangium - reproductive polyp with medusa buds

4

hydrocaulus - the main upright stalk, surrounded by a chitinous covering, which joins the colony members

obelia colony: class Hydrozoa, phylum Cnidaria

1 generalized obelia medusa

tentacles

2 generalized obelia medusa

velum

3 generalized obelia medusa

oral arm

4 generalized obelia medusa

manubrium

5 generalized obelia medusa

gastrovascular cavity

1 obelia medusa

tentacles

2 obelia medusa

central mouth

3 obelia medusa

manubrium

4 obelia medusa

gonads

1 Metridium (Anenomes class anthozoa, phylum cnidaria)

oral disc

2 Metridium (Anenomes class anthozoa)

tentacles

3 Metridium (Anenomes class anthozoa)

pedal disc

1 Metridium (anemones class anthozoa) cross section

epidermis

2 Metridium (anemones class anthozoa, phylum cnidaria) cross section

pharynx

3 Metridium (anemones class anthozoa) cross section

septa

1 generalized coral polyp

stinging tentacles

2 generalized coral polyp

flecks are zooxanthellae

3 generalized coral polyp

mouth

4 generalized coral polyp

stomach

5 generalized coral polyp

basal disc in limestone cup

label + name

planaria, class trepaxonemata, phylum platyhelminthes (flatworms)
1- eye spots
2- auricle
3- pharynx
4- genital pore

label + name

Planaria: class Trepaxonemata, phylum Platyhelminthes
1- auricle
2- eyespot
3- intestine
4- diverticula
5- pharynx
6- mouth
7- intestine

label + name

Clonorchis (Chinese liver fluke): class trematoda, phylum platyhelminthes (flatworms)
1- mouth
2- oral sucker
3- pharynx
4- intestine
5- ventral sucker
6- uterus
7- testes

label + name

Schistosoma (human blood fluke), class trematoda (flukes), phylum platyhelminthes (flatworms)
1- female in groove
2 - male

label and name

tapeworm: class cestoda, phyllum platyhelminthes
1- rostellum
2 - hooks
3 - suckers
4 - scolex

label and name

tapeworm: class cestoda, phylum platyhelminthes
1- ovary
2- genital pore
3- uterus
4- testes
5- excretory ducts

label and name

chiton - class polyplacophora (phyllum mollusca)
1- dorsal plates (valves)
2- girdle

label and name

chiton - class polyplacophora (phyllum mollusca)
1- mouth
2- gills
3- foot
4- pallial groove

name and label

Helix (a pulmonate land snail), class gastropoda, phylum mollusca
1- whorls
2- suture
3- lines of growth
4- tentacles
5- mantle/collar
6- aperture
7- foot
8- apex

sinistral shell

with apex pointed up, aperture/opening is to the left

dextral shell

with apex pointed up, aperture/opening is to the right

what is this

snail radula

name and label

freshwater mussel, class bivalvia, phylum mollusca)
1- umbo
2- valve
3- lines of growth

label and name

valve (shell) of a fresh water mussel, class bivalvia, phylum mollusca
1- posterior adductor scar
2- pallial line
3- nacreous layer
4- anterior adductor scar
5- hinge

label 1,2,4,6,8,9,10,11,12,14

1- mouth
2- palps
4- gills
6- intestine
8- incurrent siphon (water in)
9- excurrent siphon (water out)
10- foot
11- anterior adductor muscle
12- posterior adductor muscle
14- ligament

name and label

squid - class cephalopoda phylum mollusca
1- head
2- tentacle
3- eye
4- arm
5- sucker
6- fin
7- mantle
8- collar
9- funnel

label the orientations

1- doral
2- posterior
3- ventral
4- anterior

label 1,2,5,8,10,14

1- mouth
2- funnel
5- intestine
8- gills
10- heart
14- mantle

name

Turbatrix aceti "vinegar eel", order Rhabditida, Phylim Nematoda (Roundworms)

name + label

nematode male (left) and female (right)
1- pharynx
2- ovary
3- oviduct
4- testes
5- vas derfrens
6- vulva
7- seminal vesicle
8- uterus
9- rectum
10- cloaca

name + label

ascaris female, order ascaridida, class chromadorea, phylum nematoda (round worm)
1- longitudinal muscles
2- intestine
3- pseudocoelom
4- uteri
5- cuticle
6- oviducts
7- ventral nerve cord
8- ovaries

name and label

neneris (clam worm), class polychaeta, phylum annelida
1- anterior tentacles
2- tentacles (cirri)
3- pharynx
4- palps
5- prostomium
6- peristomium
7- neuropodium
8- notopodium
9- head
10- jaws
11- everted pharynx

name + label

neneris cross section (class polychaeta, phylum annelida)
1- circular muscle
2- parapodium
3- oblique muscle in cs
4- longitudinal muscle
5- nerve cord
6- dorsal vessel
7- intestine
8- aciculum in cs
9- ventral vessel

name + label

earthworm order opisthopora class oligochaeta/clitellata phylum annelida
1- prostomium
2- mouth
3- peristomium
4- opening female gonopore
5 - opening male gonopore
6- seminal receptacle openings
7- clitellum
8- segments or metameres
9- setae
10- anus

name + label

earthworm order opisthopora class oligochaeta/clitellata phylum annelida
1- intestine
2- gizzard
3- crop
4- blood vessel
5- septa
6- seminal vessicles
7- aortic arches
8- pharynx
9- brain
10- mouth
11- nephridia
12- seminal recepticles
13- ovary
14- ventral nerve cord
15- ventral blood vessel
16- metameres

name and label

earthworm (cross section) order opisthopora class oligochaeta/clitellata phylum annelida
1- circular muscles
2- longitudinal muscles
3- intestine
*4- chlorogogue tissue
5- coelom
6- cuticle epidermis
7- dorsal blood vessel
8- typhlosole
9- nephridium
10- ventral blood vessel
11- nerve cord

name + label

Leech (ventral) class Hirudinea, phyllum annelida
1- anterior sucker
2- posterior sucker

name + label

peripatus - phylum onychophora
1- antennae
2- head
3- trunk
4- segments
5- oral papilla
6- unjointed appendages

name + label

peripatus - phylum onychophora
1- antenna
2- oral papilla
3- mandible
4- first leg
5- labrum
6- outer lip
7- inner lip

name

adult tardigrade (phylum tardigrada)

name + label all

earthworm order opisthopora class oligochaeta/clitellata phylum annelida
1- mouth
2- cerebral ganglion
3- pharynx
4- oesophagus
5- aortic arches
6- spermathecae
7- seminal vesicles
8- crop
9- gizzard
10- intestine
11- clitellum
12- ventral nerve cord
13- dorsal blood vessel
14- anus

name + label

trilobite (fossil) class trilobita, sub phylum trilobitomorpha, phylum arthropoda
1- eye
2- segment
3- head/cephalon
4- trunk
5- pygidium

name + label

Limulus (horseshoe crab), class Merostomata, subphylum chelicerata, phylum arthropoda
1- ocelus
2- compound eye
3- carapace
4- cephalothorax
5- abdomen
6- chelicera
7- gnathobase
8- mouth
9- legs
10- genital operculum
11- telson

name

pycnogonida (class pycnogonida, subphylum chelicerata, phylum arthropoda)

name + label

scorpion, class arachnida, subphylum chelicerata, phylum arthropoda
1- chelicera
2- prosoma
3- pedipalp
4- coxa
5- metasoma
6- sting
7- telson
8- mesosoma
9- median eyes

name + label

scorpion, class arachnida, subphylum chelicerata, phylum arthropoda
1- telson
2- tail
3- trunk

name + label

spider, class arachnida, subphylum chelicerata, phylum arthropoda
A- cephalothorax
B- abdomen
C- spinnerets
D- waling legs
*E- pedicel
*F- chelicerae/fangs
*G- pedipalps

name + label

pseudoscorpion, class arachnida, subphylm chelicerata, phylum arthropoda
1- chelicera
2- palp
3- carapace
4- abdomen
5- tergite
6- patella
7- femur
8- chela
9- coxa
10- sternite
11- legs

name

red spider mite: class arachnida, subphylum chelicerata, phylum arthropoda

name

american dog tick: class arachnida, subphylum chelicerata, phylum arthropoda

label

biramous appendage of crustecea
1- endophite
2- exophite
3- protopodite

name + label

crayfish, class malacostraca, subphylum crustecea, phylum arthropoda
A- gills
B- heart
C- ostium (heart holes)
D- digestive gland

name and label

crayfish: class Malacostraca, subphylum Crustacea, phylum arthropoda
1- cephalothorax
2- abdomen
3- head
4- thorax

name and label

crayfish: class Malacostraca, subphylum Crustacea, phylum arthropoda
1- antenna
2- cheliped
3- antennule
4- walking legs
5- swimmerette
6- uropods
7- telson
8- maxillipeds

name + label

crayfish appendages
1- 2nd maxilla
2- 1st maxilla
3- mandible
4- 1st maxilliped
5- 2nd maxilliped
6- 3rd maxilliped

name and label

crayfish: class Malacostraca, subphylum Crustacea, phylum arthropoda
1- cephalothorax
2- abdomen
3- carapace
4- tergum
5- telson
6- uropods
7- swimmerets
8- walking legs
9- cheliped
10- feeding appendages
11- rostrum (trangle between eyes)
12- antenna
13- antennule (shorter antenna)
14- compound eye
15- eyestalk

cardiac chamber of the stomach

pyloric chamber of the stomach

digestive gland

intestine

testes

heart (with holes - ostia = open circulatory system)

green glands

name

artemia (sea monkeys): class branchiopoda, subphylum crustecea, phylum arthropoda

name

daphnia: class branchiopoda, subphylum crustacea, phylum arthropoda

name

1- tadpole shrimp
2- fairy shrimp
Eubranchipus: class branchiopoda, subphylum crustecea, phylum arthropoda

name

ostracod class ostracoda subphylum crustecea, phylum arthropoda

name

copepod (cyclops): class copepoda, subphylum crustecea, phylum arthropoda

name

barnacles: class cirripedia, subphylum crustecea, phylum arthropoda

name and label

crayfish: class malacostraca, subphylum crustacea, phylum arthropoda
A- stomach
B- digestive gland
C- heart

name

amphipoda: class malacostraca, subphylum crustacea, phylum arthropoda

name

isopoda: class malacostraca, subphylum crustecea, phylum arthropoda

name + label

millipede: class diplopoda, subphylum myriopoda, phylum arthropoda
1- trunk
2- rounded head
3- short antenna
4- mouth
5- 2 pairs of legs per segment