Indus worm Indus worm The skōlex (Indus Worm or the horrible Indian worm), in ancient Greek writings, was a supposed giant, white, carnivorous worm with a large pair of teeth that lived in the Indus River. Gustav Oppert in the 19th century reasoned that "skōlex" referred to a like-sounding word in the Indian language, and was convinced the word was "culukī" () for "fish" or "porpoise". In his opinion, the word could refer even to a "crocodile" by extension. Scholar Erik Seldeslachts, in a 1998 paper, has suggested parallel with "kṛmiḥ" () which has the duel meaning of "worm" and a name
The Creature from the Pit Mat Irvine were called on the carpet by the BBC management for the appearance of the creature Erato. The phallic appearance of the proboscis in the first episode resulted in uncontrolled laughter in the studio and prompted an overnight change to add a pair of pincers to the creature. At the start of the story K9 is seen reading "The Tale of Peter Rabbit" to the Doctor. David Brierley makes his debut as the voice of K9 in this story, taking over from John Leeson. Adrasta's engineer, Tollund, was played by former "Doctor Who" director Morris Barry. Eileen Way, who