slide1 n.
Download
Skip this Video
Loading SlideShow in 5 Seconds..
Teleostei ‘perfect bone’ fishes PowerPoint Presentation
Download Presentation
Teleostei ‘perfect bone’ fishes

Loading in 2 Seconds...

play fullscreen
1 / 25

Teleostei ‘perfect bone’ fishes - PowerPoint PPT Presentation


  • 88 Views
  • Uploaded on

Teleostei ‘perfect bone’ fishes. (D) Teleostei. Speciose : ~ 24,000 spp. 38 Orders; 426 Families 4 major subdivisions (Chapter 14; Helfman et al. 1997; p.222 and 223; Course Pack pp.21 & 23) Osteoglossomorpha Elopomorpha Clupeomorpha Euteleostei. Taxonomy. Class Division Teleostei

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about 'Teleostei ‘perfect bone’ fishes' - fagan


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
slide2

(D)Teleostei

Speciose : ~ 24,000 spp.

38 Orders; 426 Families

4 major subdivisions

(Chapter 14; Helfman et al. 1997; p.222 and 223; Course Pack pp.21 & 23)

Osteoglossomorpha

Elopomorpha

Clupeomorpha

Euteleostei

taxonomy
Taxonomy
  • Class
  • Division Teleostei
  • Subdivision Euteleostei
  • Superorder Elopomorpha
  • Order Anguilliformes
  • Family Anguillidae
  • Genus
  • Species

American eel

slide4

Teleostei

Speciose : ~ 24,000 spp.

38 Orders; 426 Families

Success in part depends on 5 trends

1. Bone Reduction:

- skull, tail, vertebrae, jaw, fin rays, scales

2. Changes in position and use of dorsal fin

3. Placement and function of paired fins

slide5

Teleostei

  • 4. Modifications to caudal fin and gas bladder
  • Jaw Modifications
    • expansion, protrusion, suction
    • musculature and dentition of
    • pharyngeal jaws
slide6

(SD)Osteoglossomorpha

Osteoglossidae

Bony tongues

slide7

Osteoglossomorpha

Pantodontidae

Butterfly fish

slide8

Osteoglossomorpha

Notopteridae

African knifefishes

slide9

Osteoglossomorpha

Mormyridae

Elephantnose fishes

slide11

Elopomorpha

Anguilliformes:

Anguillidae

anguill = eel (L)

freshwater eels

Muraenidae

muraen = eel (L)

moray eels

slide12

Elopomorpha

Anguilliformes:

Ophicthiidae

ophi = snake (G)

snake and worm eels

Congridae

cong/conger = eel (L)

conger eels

slide13

Elopomorpha

Saccopharyngiformes:

Eurypharyngidae

Eury = wide (G); pharyng = throat (G)

Gulpers

Pelican Eels

slide14

(SD)Elopomorpha

Elopiformes:

Elopidae

Lady fishes; tenpounders

Megalopidae

mega = large (G); lopi = scale (G)

Tarpon

slide15

(SD)Clupeomorpha

Otophysic connection

Clupeiformes:

Clupeidae herrings

clupe = shield, a river fish (L)

Engraulidae anchovies

engraul = a small fish (G)

Commercially important fisheries

Otophysic connection

slide16

(SD)Euteleostei

the ‘true’ teleosts

92%of Families,95%of species ofTeleostei

Many possess: adipose fin, breeding tubercles

(SO)Ostariophysi

  • Weberian Ossicles: anterior vertebrae and ribs modified toconnect gas bladder to inner ear
  • Schreckstoff:
  • alarm substance and
  • reaction
slide17

(SO)Ostariophysi

Cypriniformes:

Cyprinidae

largest freshwater family; 2nd largest of any family

minnows,

carps

slide18

Ostariophysi

Cypriniformes:

Catostomidae

Cato = downward (G); stom = mouth (G)

suckers

Cobitidae

loaches

slide19

Ostariophysi

Characiformes:

Characidae

Gasteropelecidae

gastero = stomach (G); pelec = hatchet (G)

Characins

Piranhas and Tetras

Africa and S. America

freshwater hatchetfishes

slide20

Ostariophysi

Siluriformes:

Ariidae

Ari = very much, warlike (G)

Aspredinidae

Aspred = roughness, a rough plate (L)

banjo catfishes; tubercles

Clariidae

Clari = clear (G)

airbreathing catfishes

sea catfishes

slide21

Ostariophysi

Siluriformes:

Ictaluridae

Loricariidae

clothed in metal, armor (L)

North American catfishes

armored catfishes

slide22

Ostariophysi

Siluriformes:

Mochokidae

upside-down catfishes

Pimelodidae

long-whiskered catfishes

Trichomycteridae

tricho = hair (G); mycter = nose (G)

parasitic catfishes

slide23

Ostariophysi

Gymnotiformes:

Gymnotidae

gymno = naked (G)

knifefishes

production and

reception of weak

electrical impulses

slide24

(SO)Protacanthopterygii

(prot= first, acanth = spine, pter = fin)

Esociformes

Esocidae

Pikes and

pickerels

slide25

Protacanthopterygii

Salmoniformes

Salmonidae