Chapter 12 Flashcards
1
Q
Teleosts
A
- 42 orders
- 431 families
- 24,000+ species
- 96% of all living things
2
Q
Teleost characteristic
A
- end bone
- homocercal tail
- evolution of jaw
- variation in paired fin position
- great variation in feeding ecology
- Mesozoic origin
3
Q
subdivisions of Teleosts
A
- Elopomorpha
- Osteoglossomorpha
- Otocephala
- Euteleostei
4
Q
Elopomorpha characteristics
A
- gular bone
- Leptocephalus larvae
5
Q
Elopomorpha examples
A
- tarpons
- eels
- gulpers
- swallowers
6
Q
Leptocephalus larvae
A
- feeds on organic matter through skin and on small zooplankton
- long lived
- oceanic current dispersal
- lacks RBC’s
7
Q
Order Elopiformes
A
- large cycloid scales
- families Elopidae & Megalopidae
8
Q
family Elopidae
A
- ladyfish & tenpounders
- marine
- 5 species
9
Q
family Megalopidae
A
- tarpon
- very high fecundity
- marine
- 2 species
10
Q
Order Albuliformes families
A
- Albulidae
- Halosauridae
- Notacanthidae
11
Q
Order Anguilliformes
A
- 15 families
- marine
- catadromous
- loss of pelvic girdle
- reduced or absent paired fins
12
Q
family Anguillidae
A
- catadromous
- Anguillia rostrata
13
Q
catadromous
A
adults in freshwater, migrate to the sea for reproduction
14
Q
family Murdenidae
A
- moray eels
- marine, rocky shore habitats
- tropical/ temperate
- lack paired fins
15
Q
family Congridae
A
- 150 species
- tropical & subtropical seas
- worldwide
- important food fish
