Kelkolosro

The Kelkolosro (Th."Hidden Coil") was a species of large cobra-like serpents native to northern Middle-Earth.They were believed by the Wild Men to have been descendants of Demon-serpents from Ûtum, and there was possibly some truth in this.They were all -black in colour, quite poisonous, could reach a length of up to 18,feet and like true cobras were capable of rearing upwards and producing a hood when threatened.