Lab 3 Flashcards
Chimeradae
Holocephala
Neoselachii - 2 groups
Sharks
Galeomorphii & Squalomorphi
Requiem sharks
what group?
what kind of reproduction
Carcharinidae
Galeomorphii
viviparous - live birth
5th gill after pectoral
Hammerhead shark
what group
Sphyrnidae
Galeomorphii
Horn/ bullheaded shark
what group
dorsal spine?
Heterodontidae
Galeomorphii
Immovable
dogfish sharks
what group
dorsal spine?
Squalidae
sqaulomorphi
immoveable
Angel sharks
Pectoral fins?
Squatinidae
not attached to the head
Skates and Rays
gill slits where?
Pectoral fins?
Large what?
Batoidea
Ventral
fused to the head and used for locomotion
Spiracles
Eagle or mobula rays
Sting located where?
Pectoral fin shape
head?
Myliobatidae
close to body
triangular
raised up
American round stingray
tail?
Venomous spine(s) where?
Caudal fin?
Urotrygonidae
thick
not close to body
well developed
Butterfly ray
sting located where?
Caudal fin?
tail?
Gymnuridae
close to body
none
short
Skates
what fins on the tail?
spines?
caudal fin?
Rajidae
dorsal fins
thorn-like spines on dorsal midline
greatly reduced
Electric Ray
body shape?
pectoral muscles?
Torpedinidae
ovalized
“sunken in”
Ray-finned fishes
skeleton?
teeth fused to what?
fins supported by what?
gills enclosed by what?
spinalcord enclosed in what?
Actinopterygii
true bone
skull
dermal rays
operculum
neural arches
Holostei - 2 families
Heteroceral tail becoming what?
____ plate?
Gars and Bowfin
homocercal
Gular
Dermal armor
Holostei- Gars
Lepisosteidae
Holostei- Bowfin fish
Amiidae
Chondrostei - two families
what present?
what kind of skeleton?
reduced ____ scales
Sturgeon and paddlefish
Spiracles
Cartilaginous
Ganoid
Chondrostei - Sturgeon
Acipenseridae
Chondrostei- Paddlefish
Polyodontidae
Cladista- one family
Bichirs
Cladista- Bichirs
Dorsal fin?
Gill arches?
Scales?
what for respiration?
Polypteridae
5-18
4
ganoid
spiracles
