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Ichthyology > Taxa features > Flashcards

Taxa features Flashcards

1
Q

Vertebrata DOESN’T include

A

Myxiniformes (hagfish)

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2
Q

Gnathostomata DOESN’T include

A

Myxiniformes (hagfish)

Petromyzontiformes (lampreys)

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3
Q

Features of osteichthyes

A

Skull of many bones + sutures
Rays usually segmented
Lung or swim bladder usually present
Low urea concentration

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4
Q

Features of actinopterygii

A

Ray-finned fish
Pectoral girdle attached to scapular-coracoid
Interopercular and branchiostegals usually present
Internal nostrils absent
Usually have a swim bladder
Spiral valve usually absent

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5
Q

Groups NOT in actinopterygii

A 
Coelacanthiformes
Chondrichthyes
Myxiniformes
Dipnoi
Petromyzontiformes
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6
Q

Features of teleostei

A

Homocercal tail
Uroneural bones
Mobile premaxillae
Unpaired basibranchials

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7
Q

Groups NOT in teleostei

A 
Polypteriformes
Acipensiformes
Coelacanthiformes
Chondrichthyes
Myxiniformes
Amiiformes
Lepistosteiformes
Dipnoi
Petromyzontiformes
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8
Q

Features of acathopterygii

A

Anterior fin composed of spines + solid bone - not segmented
Most have physoclistous swimbladder
Scales are usually ctenoid
Usually two dorsal fins (first spiny, second soft-rayed)
Pelvic girdle usually anterior (often connected to pectoral girdle)

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9
Q

Acathopterygii

A

Spiny-rayed fishes

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10
Q

Groups in acanthopterygii

A 
Mugiliformes
Beloniformes
Cyprinodontiformes
Gasterosteiformes
Scorpaeniformes
Beryciformes
Perciformes
Pleuronectiformes
Tetraodontiformes
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11
Q

Groups NOT in acanthopterygii

A 
Lopiiformes
Batrachoidiformes
Gadiformes
Percopsiformes
Aulopiformes
Stomiiformes
Esociformes
Salmoniformes
Osmeriformes
Saccopharyngiformes
Anguilliformes
Osteoglossiformes
Amiiformes
Lepistosteiformes
Dipnoi
Petromyzontiformes
Myxiniformes
Chondrichthyes
Coelacanthiformes
Acipensiformes
Polypteriformes
Clupeiformes
Ostariophysi
Myctophiformes
Lampridiformes
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12
Q

Grousp in ostariophysi

A 
Gymnotiformes
Siluriformes
Characiformes
Cypriniformes
Gonorhynchiformes
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13
Q

Three groups contributing to highest species richness

A

Cypriniformes (2000 species)
Cichlidae (2000 species)
Gobiidae (2000 species)

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14
Q

Ostariophysi

A 
Gymnotiformes
Siluriformes
Characiformes
Cypriniformes
Gonorhynchiformes
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15
Q

Scorpaeniformes

A 
Liparidae
Cyclopteridae
Agonidae
Cottidae
Rhamphocottidae
Anoplopomatidae
Hexagrammidae
Scorpaenidae
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16
Q

Obligate freshwater groups

A 
Percidae
Channidae
Cichlidae
Cyprinodontiformes
Percopsiformes
Esociformes
Gymnotiformes
Siluriformes
Characiformes
Cypriniformes
Polypteriformes
Dipnoi
Lepistosteiformes
Amiformes
Osteoglossiformes
17
Q

Chondrichthyes

A

Holocephali
Galeomorphi
Squaliformes
Batoidea

18
Q

Apogonidae

A

Nocturnal - red colouration + tapetum

Ichthyology (5 decks)

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