Seven Samhitas of the fourth version of Shiva Purana

वायवीयसंहितायां पूर्वभागे विद्यावतारकथनं नाम प्रथमोऽध्यायः

Vayaviya Samhita, Earlier/east part, Knowledge incarnation Chapter 1

सूत उवाच |

Suta Goswami said (to the sages)

व्यासेन तत्तु संक्षिप्तं चतुर्विंशत्सहस्रकम् |
शैवं तत्र पुराणं वै चतुर्थं सप्तसंहितम् || 58 ||
विद्येश्वराख्या तत्राद्या द्वितीया रुद्रसंहिता |
तृतीया शतरुद्राख्या कोटिरुद्रा चतुर्थिका || 59 ||
पञ्चमी कथिता चोमा षष्ठी कैलाससंहिता |
सप्तमी वायवीयाख्या सप्तैवं संहिता इह || 60 ||

That actually shortened/condensed by sage Vyasa (is) there really the fourth (version of the) Purana of Lord Shiva with seven Samhitas, 24000 (shlokas).
There the first called Vidyeshwara (Samhita), second Rudra Samhita, third called Shatarudra, fourth Kotirudra,
And fifth called Uma, sixth Kailasa Samhita, seventh called Vayaviya; thus seven Samhitas here (in this Purana).