Zoology lab: practical one

pinacocytes

flattned eptiheial cells

choanocytes

cells that create water currents in canals and chambers

mesohyl

gelatinous matrix with scattered cells

spicules

structral cells made of of eithercalcium carbonte, silica or fibers of spongins

gemmules

internal asexual buds in freshwater

Class Demospongia

siliceous spicules, but never 6 rayed and/or fibers of sponging

all leuconoid

Class Calcarea

spicles are calcerous

asconoid, syconoid, or leucnoid

Ascon

incurrent pores, spongocoel lined with choanocytes; osculum

usually Class Calcarea

Sycon

ostium, incurrent canals, radial CANALS lined with choanocytes, spongocoel; osclum

Leucon

body plan with pores; incurrent canals; radial canals; flagellated chambers with choancytes; osculum

Class Hexactinellida

Spiclues are siliecous, 6 rayed and fused

Euplectella

radial canal

what is number 1

apopyle

what is 2

incurrent canal

what is 3.

dermal ostimum

what is 4

Amphiblastula

what is 1. pointing to

Planula

Larval form of cnidarian species

Formed from either a Medusa or a polyp

Phylum Cnidaria, Class Hydrozoa

hydra sp.

Scyphistoma

2nd stage of the scyphozoa development

Gastrodermis

What is 1

Gastovascular cavity

What is 2

mesoglea

What is 3

Epidermis

What is 4

Ephyra

Budded off Medusa’s from the schiystoma via strobilation. Will mature into a Medusae

Class Anthozoa, order Octocorallia

Give class and order for this species

Class Anthozoa order Scleractinia

Name class and order

Gastric/gonad pouches

What are the areas pinned in this specimen (Class Scyphozoa)

Cnidarian, Anthozoa

Name phylum and class

Auricle

What is 1

Eye spots

What is 2

Diverticulum

What is 5

Gastrovascular cavity

What is 2

pharynx

What is 3

Phylum Platyhelminths, class turbellaria, order Tricladida

Names phylum class and order

Mouth

What is 4=

Phylum annelida, class polychaetae, Clade erradica

What is class and phylum

Phylum porifera class demospongiae

Bath sponge phylum and class

phlyum platyhelimnths, class tremadtoda (flukes)

name phlyum and class

Acolemoates

plathyhelmnths, class trematoda body plan

Cnidaria, hydrozoa

name phylum and class

Diploblastic, has mesoglea + fluid filled gastrovascaulr cavity 

skeleton/body plan of hydrozoa 

budding hydra

what is the needle pointing to

center of tentacles

where is the mouth/oral opening at the buds of this hydra

class cestoda mature proglotitds

this slide represents phylum platyhelimthes

septa

the thick radial partionins divding the gastrovascular cavity into chambers

zooids on the tentacles porotions, medusoids produce gametes

how does Physalia reproduce

phlyum Cnidaria, class hydrozoa

name phylum and class

oral sucker, acetabulum

two structures in trematoda that aid in the capture of food and attachment onto hosts

phlyum platyhelimnths, class trematoda

name phlyum and class

immature

uniform tissues, with no obovious reproductive organs 

is this proglottid mature of immature

Scolex

rounded head of at the bottom og slide

suckers that attach host intestinal tract

the circular structures on this Taenia scolex is

gential pore 

opening on side of proglottids

ovaries and vitelline glands

what is circled on this mature proglottid

ecdysozoa

superphlyum of Nemerta, which differs from other worms 

typhysole

what is circled here in this Olgiochaete cross section