पञ्चसायक (कविशेखर ज्योतिरीश्वर - कामकला एवं रति-शास्त्र संस्कृत मूल पाठ)

ध्यम् तत्तद्देशीयानां स्त्रीणां स्वरूपाणि..."
Then what?
In Ratirahasya, Chapter 2 (or 3):
Wait, Ratirahasya has chapters called 'Pariccheda' or here called 'Sayaka' (Kaminisanjivana or Panchasayaka!)
WAIT!
LOOK AT LINE 4:
"ग्रन्थश्चायं कवीन्द्रेण पञ्चभिः सायकैः समापितः ।"
PANCHABHIH SAYAKAIH!
The text being described is PANCHASAYAKA (पञ्चसायक) by Kavindra Jyotirishvara (कवीन्द्र ज्योतिरीश्वर / कवीन्द्र)!
YES! "कवीन्द्रेण पञ्चभिः सायकैः समापितः"!
PANCHASAYAKA has 5 Sayakas:

1. Prathama Sayaka
2. Dvitiya Sayaka
3. Tritiya Sayaka
4. Chaturtha Sayaka
5. Panchama Sayaka

Now let's check the contents of Panchasayaka!
Author: Jyotirishvara Kavishekhara (कवीन्द्र).
In Panchasayaka, Sayaka 2:
Let's recall or analyze what is in Sayaka 2 of Panchasayaka:

• Purusha-bheda: Shasha, etc.
• Stri-bheda: Mrigi, etc.
• Suratabheda: Sama (3), Vishama