BIOL 321 Pictures Flashcards
polymorphic hydroid


Glyceridae
blood worm
Plesiomorphy

Epitoky posterior budding

Lumbricus digestion
Pharynx, pharyngeal dilator muscles, esophagus, crop, gizzard, intestine, typhlosole, chloragogen tissue


Subphylum Medusazoa
Class Scyphozoa
Genus Aurelia
moon jelly

Subphylum Anthozoa
Class Octocorallia
bamboo coral
Arenicolidae
lugworm

Colonial hexacorallia
(the connections between polyps)

plesiomorphy


Hydra
(Subphylum Medusozoa, Class Hydrozoa)

Nereididae
ragworm
Arenicolidae feeding

Hydra histological cross-section

Bonnelia
Echiuridae


Subphylum Anthozoa
Class Hexacorallia
brain coral
Cnidaria epidermis

Nereis cross section
Note: cuticle, epidermis, circular muscle, longitudinal muscle, oblique muscle, eucoelom, intestine, dorsal blood vessel, ventral nerve cord, aciculae

Staurozoa

Siboglinidae morphology
note: branchial filaments, vestimentum, trunk, opisthosoma


Echiuridae
Turbellarian x-section
note: body musculature, inestinal caeca, parenchyma, epidermis


Cestoda oncosphere
Siphonophore


Siboglinidae
giant vent worm

Subphylum Anthozoa
Class Octocorallia
sea fan

Subphylum Anthozoa
Class Hexacorallia
hermatypic coral
Scyphozoan


Class Staurazoa
sponge difficulties

Scyphozoa canals

Gullet

Polymorphic hydrazoan colony


Terebellidae
‘spaghetti worm’

Sedentaria lacking cephalic sensory appendages
(Oligochaete)
Hirudinea morphology
note: oral sucker, mouth, protrusible pharynx, salivary glands, crop, intestine, intestinal caecae, posteror sucker

Metazoan phylogeny

Oligochaete intestine


Errantid cephalic sensory appendages
(Nereis)

Sabellidae
feather-duster worm
Colonial Octocorallia
(the connections between polyps)

rhopalia


Trematode redia

Hydra
(Subphylum Medusozoa, Class Hydrozoa)

Turbellaria
Cysticercus
Cestoda

Annelida historical phylogeny

Trematode
note: mouth, oral sucker, ventral sucker, excretory pore, pharynx, esophagus, intestinal caeca, multilobed testes, seminal receptacle, ovoid ovary, vitelline (yolk) glands, uterus

Rotifer

pinnate


Hydra Hydrazoan

Subphylum Anthozoa
Class Octocorallia
sea fan

Subphylum Anthozoa
Class Hexacorallia
anemone

Strobila (scyphozoa)
proglottid


Subphylum Anthozoa
Class Octocorallia
organ pipe coral
triploblastic development

Turbellarian
note: intestinal caeca, auricles, pharynx, pharyngeal cavity

Annelida new phylogeny


Trematode miracidium
diploblastic development

Terebellidae
spaghetti worm


scolex
manubrium


Trematode cercaria

Glyceridae
bloodworm
Lumbricus cross section
note: cuticle, epidermis, circular muscle, longitudinal muscle, eucoelom, intestine, dorsal blood vessel, ventral nerve cord


Trematode metacercaria
Gastrulation

siphonoglyph

scyphistoma
