#torpediniformes

Finless Sleeper Ray (Temera hardwickii), family Narkidae, order Torpediniformes, off of Tioman Island, Malaysia

A species of electric ray.

Rhinopristiformes. This order includes shovelnose rays and sawfish

Torpediniformes. This order is made up electric rays, which have electric organs at the base of their pectoral fins, allowing them to produce an electric discharge to stun prey. Torpedos (the weapon) are named after these animals

Common Torpedo aka Eyed Electric Ray (Torpedo torpedo), family Torpedinidae, order Torpediniformes, Corsica

MORE NEW ELASMOBRANCHS SPECIES FROM INDIAN OCEAN!

Described based on four specimens collected in 2015 from the Andaman Sea, off Myanmar. The fanray (Platyrhina psomadakisi) is  the first records of the family Platyrhinidae from the Indian Ocean with the three other members of the genus being restricted to the North-West Pacific. This new species differs from its congeners in having a series of faint dark bands on the body and tail, more pectoral-fin radials, and much more widely separated dorsal fins.  The Andaman Sea is the marginal body of water of the northeastern Indian Ocean.

- Female Platyrhina psomadakisi in all in all its splendor and majesty 

And from the tropical eastern Indian Ocean, Indonesia, another chondrichities is described, the new species of numbfish Narcine baliensis is distinguished from its congeners in details of its color pattern, in tooth band morphology, and in proportions of its dorsal fins, among other features. 

The numbfishes are a group of electric rays (order Torpediniformes). They are bottom-dwelling cartilaginous fishes with large, rounded pectoral fin discs and long tails. They can produce an electric discharge for defense, from which their scientific name is derived (Greek narke, meaning "paralysis").

- Male Narcine baliensis, from southern coast of Central Java, Indonesia.

Despite these new species are not related, both are demersal, living in relationship with the seafloor.

Reference: 

Carvalho & White. 2016. Narcine baliensis, a new species of electric ray from southeast Asia (Chondrichthyes: Torpediniformes). Zootaxa.

    White & Last. 2016 Platyrhina psomadakisi sp. nov., a new species of fanray (Batoidea: Platyrhinidae) from the Andaman Sea, the first record of this family in the Indian Ocean. Zootaxa. 

Called Cowley’s torpedo ray (Tetronarce cowleyi), is a new species of electric ray. Is know from Southern Africa, from Walvis Bay to Eastern Cape, South Africa at dephts of 110 to 457 m.

Note: Scale bar represents 5 cm

Coffin Ray (Hypnos monopterygius)

... is a species of electric ray or numbfish found only off the coasts of Eastern and Western Australia. Like all electric rays the coffin ray has an electric organ which allows it to dispatch its prey with a 200v electric shock, it uses this shock to feed on fish, cephalopods, worms and occasionally penguins and rats. Coffin rays are poor swimmers and are active at night, during the day they spend their time buried in the sediment to keep out of the sight of predators. Although their shock can cause severe pain in humans it is in no way lethal.

Phylogeny

Animalia-Chordata-Chondricthyes-Elasmobranchii-Torpediniformes-Torpedinidae-Hypnos-monopterygius