Sharks
Stingray
Dogfish
Catfish
D. Catfish
sound production
respiratory
locomotion
hydrostatic
dorsal
ventral
caudal
pelvic
mollusc
mammal
star fish
bony fish
olfactoreceptors
rheoreceptors
gustoreceptors
chemoreceptors
Whale
Tadpole
Aquatic urodeles
Common Indian dog fish
ampullae of lorenzini
lateral line system
stato-acoustic organs
neuromast organs
Osteichthyes
Chondrichthyes
Dipnoi
Holocephali
Dipnoi
Osteichthyes
Cyclostomata
Chondrichthyes
Placoid scales
Heterocercal tail fin
Ventrally placed mouth
Operculum
dog fish
bony fishes
both (a) and (b)
all fishes
10 volts
100 volts
50 volts
150 volts
vitamin A
iron
calcium
vitamin B complex
the nature of their scales
the position of the mouth
the position of gill slits
the kind of the tail fin
Trygon
Torpedo
Chimaera
Sphynta
Placoid scales
Ventral mouth
Operculum
Five pairs of gill slits
cat fish
dog fish
flying fish
seahorse
anterior fins
ray fins
pectoral fins
paired fins
live in sea water and migrate to fresh water rivers and lakes for breeding
live in fresh water and migrate to sea for breeding
both (a) and (b)
none of these
all types fishes
only cartilaginous fishes
only bony fishes
sea dwelling fishes
hippocampus
labeo
anabes
none of these
Endoderm
Mesoderm
Ectoderm
Integument
anandromous migration
catadromous migration
cartilaginous fish
none of these
Saurology
Traumatology
Torpedology
Ichthyology
live at the bottom of rivers
live in shallow streams
are active swimmers
live in sea water
sawfish
seahorse
electric ray
sucker fish
Pterois
Fistularia
Gambusia
None of these
a rounded body with ventral gill clefts
a flattened body with dorsal gill clefts
a flattened body with ventral gill clefts
any of these
Scoliodon
Electric ray
Whale
Lung fish
cartilaginous fishes
bony fishes
lung fishes
paleontological fishes
having gills not covered by operculum
presence of lateral line system
presence of large scales
presence of terminal mouth