These are small, flying serpent Wyverns. They can spit poison, tail whip and dive bomb at you - making them very annoying when fighting large monsters. They are found in volcanic and swampy areas, and in the Tower. They literally look like large black snakes with wings.
Simply knock them out of the air with a ranged weapon, or a large melee weapon like a Greatsword or an Longsword and then slash at them and carve. Remobra materials can make some useful equipment, so it's a good idea to save the materials.
Notorious for messing up 'Felyne Heroics' runs against HR8 Rathalos and HR9 Gravios , the Remobra is best dealt with by throwing Sonic Bombs. The Sonic Bomb knocks the Remobra from the sky, and makes it easy to kill as it writhes on the floor. The roar of a large monster has the same effect as a Sonic Bomb, but obviously isn't under your control!!
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