Study of sharks and rays is known as
Saurology
Traumatology
Torpedology
Ichthyology
Correct Answer :
C. Torpedology
Related Questions
In fishes, the lateral line receptors are
olfactoreceptors
rheoreceptors
gustoreceptors
chemoreceptors
A group of cartilaginous fishes specialised for bottom dwelling is
sharks
whales
lung fishes
rays
Which of the following is not characteristic of chondricthyes ?
Placoid scales
Heterocercal tail fin
Ventrally placed mouth
Operculum
The saw fish Pristis is a member of the class
Osteichthyes
Chondrichthyes
Dipnoi
Holocephali
Which one of the cartilaginous fishes posses an operculum over the gill ?
Trygon
Torpedo
Chimaera
Sphynta
Anandromous fishes are those which
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
Air baldder in fishes does not help in
respiration
excretion
movement
none of these
Air bladder in fishes does not help in
respiration
sound production
excretion
movement
Torpedo is a name for
sawfish
seahorse
electric ray
sucker fish
Heterocercal tail fin is a characteristic of which group of fishes?
cartilaginous fishes
bony fishes
both (a) and (b)
all fishes except sharks
Sea horse is a
mollusc
mammal
star fish
bony fish
Parental care is a characteristic of
cat fish
dog fish
flying fish
seahorse
Salmon is an example of
anandromous migration
catadromous migration
cartilaginous fish
none of these
The tympanum is absent in
dog fish
bony fishes
both (a) and (b)
all fishes
The oldest living fish is
Coelocanth
Diodon
Sturgeon
Labeo
A homocercal tail is found in
teleosts
sharks
lung fishes
rays
The pair of fins seen on either side of cloaca of fishes are the
pelvic fins
cloacal fins
anal fins
caudal fins
Rays have
a rounded body with ventral gill clefts
a flattened body with dorsal gill clefts
a flattened body with ventral gill clefts
any of these
Water into the gills of fishes passes through
nostrils
mouth
gill slits
swimming bladder
Sharks and rays can be distinguished by
the nature of their scales
the position of the mouth
the position of gill slits
the kind of the tail fin
The fish used to control spread of malaria is
Pterois
Fistularia
Gambusia
None of these
Cod liver oil is a rich source of
vitamin A
iron
calcium
vitamin B complex
In sharks, the scales are
placoid
cycloid
ctenoid
rhombiod
In a fish aquarium green aquatic plants are grown for
Oxygen
Carbon dioxide
Fish food
Decoration
Fillibranch gills are present in
all types fishes
only cartilaginous fishes
only bony fishes
sea dwelling fishes
A fish is characterised by the presence of
pharyngeal gills
paired fins
dermal scales
all of these
Most venomous fish is
electric fish
saw fish
stone fish
dog fish
Which fish is famous for cod liver oil ?
Shark
Cod
Amia
Both (a) and (b)
An anamniote group is
Primates
Aves
Crocodiles
Pisces
The flying fish Exocoetus belongs to the class
Dipnoi
Osteichthyes
Cyclostomata
Chondrichthyes