Lab 2 Flashcards
Types of scales
- ctenoid
- cycloid
- ganoid
- placoid
what type of scales do bass have?
ctenoid
what type of scales do salmon have?
cycloid
what types of scales do gar have?
ganoid
what types of scaled do sharks have?
placoid
on an organism, UP is…
dorsal
on an organism, DOWN is…
ventral
on an organism, towards the head is…
anterior
on an organism, towards the tail is…
posterior
what is the operculum?
the bony flap that covers the gill chamber
What are the 4 body types we have discussed?
- fusiform
- compressiform
- depressiform
- anguilliform
a flounder is…
compressiform
describe the fusiform body shape…
football shaped
describe the depressiform body shape
dorsal ventrally flattened
describe the compressiform body shape
flattened from side to side
a homocercal tail is…
symmetrical
a heterocercal tail is…
asymmetrical
what are the four types of mouths?
- inferior
- subterminal
- terminal
- superior
a fish runs into a wall and hits his nose, his mouth is…
subterminal
a fish runs into a wall and hits his mouth, his mouth is…
terminal
a fish runs into a wall and hits his chin, his mouth is…
superior
a fish runs into a wall and hits his chin, his mouth is…
superior
what are the pelvic fin positions?
- Abdominal Pelvic Fin Position
- Thoracic Pelvic Fin Position
- Jugular Pelvic Fin Position
whats more common, homocercal or heterocercal tails?
heterocercal
which pelvic fin position is most common?
the abdominal pelvic fin position
which pelvic fin position is most common?
the abdominal pelvic fin position
describe the abdominal pelvic fin position
both fins are attached horizontally (even with eachother)
describe the thoracic pelvic fin position
the pectoral fin is above and anterior to the pelvic fin
describe the jugular pelvic fin position
the pectoral fin is above but posterior to the pelvic fin
what are the dorsal fin positions?
- Single Dorsal Fin
- Double Dorsal Fin (Continuous)
- Double Dorsal Fin (Separate)
Describe the Single Dorsal Fin
soft fins only! this is the most ancestral
Describe the CONTINUOUS double dorsal fin
there is one soft and one spiny portion but the fin is continuous
Describe the SEPARATE double dorsal fin
there is a separate soft and spiny portion
What is the difference between stripes and bars?
stripes are horizontal and bars are vertical
In this lab we are looking at the BONY FISH, also known as…
Superclass Osteichthyes
In this lab we looked at the Class ___________, which are the ________________.
Class Actinopterygii – the rayfinned fish
In this lab, the outlier organism was __________. What Subclass and Order was it in?
the Shovelnose Sturgeon is in Subclass Chondrostei, Order Acipenseriformes.
Order Acipenseriformes
the cartilaginous ray-finned fished
Other than the Shovelnose Sturgeon, all organisms in this lab were in which subclass?
Subclass Neopterygii – the modern ray-finned fishes
In Subclass Neopterygii, there are two Infraclasses. What are they?
- Infraclass Holostei
2. Infraclass Teleostei
The Infraclass Holostei is…
the bowfins and gars
Order Amiiformes are…
bowfins
Order Lepisosteiformes are…
gars. THE LONGNOSE GAR.
What are the superorders in Infraclass Teleostei?
- Superorder Elopomorpha
- Superorder Clupeomorpha
- Superorder Ostariophysi
- Superorder Protacanthopterygii
- Superorder Paracanthopterygii
What organisms are in Superorder Elopomorpha?
- Ladyfish
2. Blackedge Moray
What organism is in Superorder Clupeomorpha?
Scaled Sardine
What organism(s) is in Superorder Ostariophysi? Include their Order!
- Golden Shiner (order cypriniformes)
2. Hardhead Catfish (Order Siluriformes)
What organism is in Superorder Protacanthopterygii? Include the order!
The Chain/Redfin Pickerel (Order Esociformes)
What organism is in Superorder Paracanthopterygii?
The Gulf Toadfish
