Jatakaparijata 13.3

13.3

kriyaḥ śiro vaktragalo vṛṣo'nye pādāṃsakaṃ pṛṣṭhomuro'tha pārśve |
kukṣistvapāno'ghnyatha medrabhuṣkau sphikpucchamityāha catuṣpadāṅge ||

Aries is the head; Taurus is the face and neck; the remaining signs are the feet and shoulders, the back, the breast, the flanks, / the belly, the anus, the private parts and testicles, and the buttocks and tail in the body of a quadruped.