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Published byClaud Sherman Logan Modified over 9 years ago
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Teleostei ‘perfect bone’ fishes
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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 (D) Teleostei
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Taxonomy –Class –DivisionTeleostei –SubdivisionEuteleostei –SuperorderElopomorpha –OrderAnguilliformes –FamilyAnguillidae –Genus –Species American eel
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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 Teleostei
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4. Modifications to caudal fin and gas bladder 5.Jaw Modifications -expansion, protrusion, suction -musculature and dentition of pharyngeal jaws Teleostei
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(SD) Osteoglossomorpha Osteoglossidae Bony tongues
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Osteoglossomorpha Pantodontidae Butterfly fish
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Osteoglossomorpha Notopteridae African knifefishes
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Osteoglossomorpha Mormyridae Elephantnose fishes
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(SD) Elopomorpha leptocephalus larvae
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Anguilliformes: Anguillidae anguill = eel (L) freshwater eels Muraenidae muraen = eel (L) moray eels Elopomorpha
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Anguilliformes: Elopomorpha Ophicthiidae ophi = snake (G) snake and worm eels Congridae cong/conger = eel (L) conger eels
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Elopomorpha S Saccopharyngiformes: Eurypharyngidae Eury = wide (G); pharyng = throat (G) Gulpers Pelican Eels
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(SD) Elopomorpha Elopiformes: Elopidae Megalopidae mega = large (G); lopi = scale (G) Lady fishes; tenpounders Tarpon
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(SD) Clupeomorpha Clupeiformes: Clupeidae herrings clupe = shield, a river fish (L) Engraulidaeanchovies engraul = a small fish (G) Commercially important fisheries Otophysic connection
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92% of Families, 95% of species of Teleostei Many possess: adipose fin, breeding tubercles Many possess: adipose fin, breeding tubercles (SD) Euteleostei (SO) Ostariophysi 1.Weberian Ossicles: anterior vertebrae and ribs modified to connect gas bladder to inner ear 2.Schreckstoff: alarm substance and reaction the ‘true’ teleosts
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Cypriniformes: Cyprinidae largest freshwater family; 2 nd largest of any family (SO) Ostariophysi minnows, carps
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Cypriniformes: Catostomidae Cato = downward (G); stom = mouth (G) Ostariophysi suckers loaches Cobitidae
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Characiformes:Characidae Gasteropelecidae gastero = stomach (G); pelec = hatchet (G) Ostariophysi Characins Piranhas and Tetras Africa and S. America freshwater hatchetfishes
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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
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Ostariophysi Siluriformes: Ictaluridae Loricariidae clothed in metal, armor (L) North American catfishes armored catfishes
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Ostariophysi Siluriformes:Mochokidae upside-down catfishesPimelodidae long-whiskered catfishes Trichomycteridae tricho = hair (G); mycter = nose (G) parasitic catfishes
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Ostariophysi Gymnotiformes: Gymnotidae gymno = naked (G) knifefishes production and reception of weak electrical impulses
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(SO) Protacanthopterygii (prot= first, acanth = spine, pter = fin) Esociformes Esocidae Pikes and pickerels
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Protacanthopterygii Salmoniformes Salmonidae
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Neoteleosts All fishes above Salmoniformes are Neoteleostei Monophyletic Based on 4 skull and jaw characteristics (p.236 of Helfman et al. 1996) Category lacks formal rank Somewhere between subdivision and superorder
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Stomiiformes Sternoptychidae Gonostomatida e (SO) Stenopterygii (steno = narrow, pter = fin)
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Aulopiformes Chlorophthalmidae (Greeneyes) Synodontidae (Lizardfishes) (SO) Cyclosquamata (cyclo=circle, squamata = scale)
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Percopsiformes Percopsidae (trout perches) (perc = perch, opsi = appearance) Aphredoderidae (pirate perches) (SO) Paracanthopterygii (para = beside) What’s unique about this fish?
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Ophidiiformes (ophi = snake) Ophidiidae (cusk-eels) Paracanthopterygii
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Batrachoidiformes (batrach = toad) Batrachoididae A very vocal order. How?
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cods (SO) Paracanthopterygii Gadiformes Gadidae
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Lophiiformes Paracanthopterygii Antennariidae (frogfishes) Ogcocephalidae (batfishes) Melanocetidae (Angler fish)
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