ichthyology lab exam 1

mouth shape?

subterminal

mouth shape?

terminal

mouth shape?

inferior

mouth shape?

terminal

mouth shape?

subterminal

mouth shape?

superior

mouth shape?

inferior

body shape?

Fusiform

body shape?

compressiform

body shape?

sagittiform

body shape?

Anguilliform

body shape?

Globiform

body shape?

Depressiform

cycloid scales

ctenoid scales

Ganoid Scales

placoid scales

Ganoid Scales

Ctenoid scales

Ctenoid scales

tail shape?

Heterocercal

tail shape?

Abbreviated Heterocercal

tail shape?

Diphycercal

tail shape?

Homocercal Forked

tail shape?

Homocercal Lunate

tail shape?

Homocercal Truncate

tail shape?

Homocercal rounded

physoclistous swim bladder

there is no connection between the esophagus and the swimbladder

Physostomous swim bladder

there is an opening in the dorsal wall of the esophagus that connects

what bones in the pectoral girdle are dermal/ endoskeletal

supracleithrum, cleithrum, posttemporal are dermal bones

scapula, coracoid, mesocoracoid are endoskeletal

characteristics of hagfishes (myxiniformes)

anguilliform body, barbels, 70-200 slime pores,

what bones in the pelvic girdle are dermal/endoskeletal

all bones are endoskeletal there are no dermal bones

characteristics of lampreys (petromyzontiformes)

anguilliform body, mouth sucking disk, 7 pairs of gill openings, well developed eyes

what are some differences of the oral disc in parasitic and non parasitic lampreys

the non parasitic have a hood in place of the oral disc, lack teeth and eyes, the parasitic have well developed eyes, well developed teeth

characteristics of holocephalans

no placoid scales, head clasper, no spiracle

characteristics of elasmobranchs

covered in placoid scales, between 5-7 gill slits, spiracle,

how do you distinguish a galeomorph from a squalomorph

all squalomorph lack an anal fin, galeomorph have anal fins

yellow: stomach

red: gall bladder

blue: pancreas

what region? and name bones?

red: frontal

Green: Basisphenoid

blue: Paraphenoid

orbital region

what region? and name bones?

ethmoid region

green: ethmoid

blue: lateral ethmoid

red: vomer

what region? and name bones?

blue: vomer

red: lateral ethmoid

ethmoid region

what type of girdle?

basipterygium

pelvic girdle

what type of girdle?

blue: posttemporal

red: supracleithrum

green: cliethrum

orange: coracoid

Yellow: pectoral radials

pink: scapula

pectoral girdle

red: parhypural

green: hypurals

orange: epurals

Blue: urostyle

green: dorsal fin Pterygiophores

orange: anal fin pterygiophores

Blue: Caudal centra

Red: Abdominal centra

yellow: upper and lower pharyngeal tooth plate

Blue: gill arches

Red: gill rakers

green: gill filaments

Blue: ovaries

yellow: kidneys

red: uterus

green: rectal gland

yellow: neural spine

Red: neural canal

green: neural arch

Pink: centrum

orange: haemal arch

Purple: haemal spine

Blue: heal canal

Blue: total length

yellow: forked length

red: standard length

green: body depth

purple: head length

procesus ratriformes

green: nasal opening

red: teeth, buccal cavity

blue: buccal opening

red: nasohypophyseal pore

blue: oral opening

yellow: teeth

red: gill pores

yellow: nasohypophyseal pore

blue: well developed eyes

red: barbels

Blue: gill pores

green: cephalic lateral line systems

yellow: head clasper

blue: ampullae of lorenzini

red: operculum

yellow: gallbladder

red: spleen

blue: stomach

green: swim bladder

orange: liver

pink: pyloric caeca

purple: intestines

light blue: hepatopancreas

what region? and bones?

red: supraoccipital

Blue: epioccipital

green: exoccipital

yellow: bassioccipital

occcipital region

what region? and bones?

blue: prootic

red: parietal

yellow: sphenotic

green: pterotic

otic region