Does Torpedo have Claspers?
Torpedo rays are flat like other rays, disc-shaped, with caudal fins that vary in length. Their mouths and gill slits are located on their undersides. Males have claspers near the base of the tail.
Is chondrichthyes a torpedo?
The common torpedo (Torpedo torpedo), also known as ocellate torpedo or eyed electric ray, is a species of electric ray in the family Torpedinidae….
| Common torpedo | |
|---|---|
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Chondrichthyes |
| Order: | Torpediniformes |
Does Scoliodon have operculum?
A. Scoliodon.
Why is torpedo called electric ray?
electric ray, also called torpedo, torpedo fish, numbfish, or crampfish, any of the rays of the families Torpedinidae, Narkidae, Narcinidae, and Hypnidae, named for their ability to produce electrical shocks. They are found worldwide in warm and temperate waters.
What is opercular gill?
The operculum is a series of bones found in bony fish and chimaeras that serves as a facial support structure and a protective covering for the gills; it is also used for respiration and feeding.
Which character is same in labeo and Scoliodon?
Differentiate between these two fishes, which help in their identification
| Labeo rohita | Scoliodon |
|---|---|
| These are bony fishes with bony endoskeleton. | These are cartilaginous fishes with cartilaginous endoskeleton. |
| Gills covered by operculum. | Gills not covered by operculum. |
| Mouth is terminal in position. | Mouth is ventral in position. |
Does the torpedo ray have any natural enemies?
This ray has few natural predators due to its formidable electric capabilities and large size. They are seldom confronted by predators which may include sharks and other large carnivorous fish.
What do electric ray eat?
Depending on the species, electric rays may eat fishes, worms, and crustaceans. Adult Atlantic rays consume eels, flounders, and small sharks.
What is Holobranch gill?
Definition of holobranch : a fish gill in which the branchial arch has two rows of lamellae or filaments — compare hemibranch sense 2.
What is Holobranch and Hemibranch?
There are two series of filaments on each arch. One series of filaments is termed a hemibranch, while both together are termed a holobranch. There are numerous plate-like lamellae on each filament. The lamellae are the site of blood/water exchange.
Who has Heterocercal tail?
The heterocercal tail of a shark is a caudal fin with unequal lobes. A heterocercal tail is a caudal fin composed of two asymmetrical lobes. Often, such as the case in many sharks, the vertebral column passes through the upper lobe, making it the larger of the two lobes.
Why is Scoliodon called dogfish?
– Scoliodon is a fish which is cartilaginous. It is often referred to as dogfish because it has a strongly evolved sense of dog-like smell. This power of smell helps it to find food. Thus, the correct answer is option (D) Power of smell.
What happens if you step on an electric ray?
They are harmless unless touched or stepped on and are of negligible commercial interest. Electric rays range in length from under 30 cm (1 foot) to about 2 m (6 feet). They are soft and smooth-skinned, with a circular or nearly circular body disk formed by the head and pectoral fins.
Is there a torpedo shark?
The Black Shark is a heavyweight torpedo developed by WASS of Italy. It is most closely associated with the Scorpène-class diesel-electric submarines produced by France for the export market, but is also found in the Type 209 submarines….Black Shark torpedo.
| Black Shark | |
|---|---|
| Launch platform | Submarine |
Do electric rays have teeth?
This species has small teeth which each possess a single smooth edged cusp. There are 25-28 teeth on the top jaw and 19-26 teeth on the lower jaw. Pacific electric rays have a very low resilience with a population doubling time of more the 14 years.