These are called variously "Naro's Six Dharmas" or "the Six Yogas of Naropa".
They are:
Tumo - the Yoga of Psychic Heat
Karmamudra - the Yoga of the four Mudras
Jangwa, Gyurwa, Pelwa - the Yoga of Dream Time
Osel, the Yoga of the Clear Light Mind
Gyulu - the Yoga of the Illusory Body
Powa - the Yoga of transference of consciousness
This is only one of the enumerations of the Six Yogas.
Some texts group them differently, or emphasize different aspects.
Here I include Bardo Yoga in with Dream Yoga, and "Forceful Projection"
in with Powa Yoga.
Under Karmamudra the four Mudra classes are:
Karma Mudra - without qualification.
Samaya Mudra - with Tantric Vows and Empowerment.
Jnana Mudra - Visualized.
Maha Mudra - taking the whole universe as the Mudra.
The Sakya tradition, which also derives from Naropa and his sister Niguma thru the Mahasiddha Virupa,
calls them "The Subsidiary practices"
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