Narada Purana (Jyotisha Selections) · by Vyasa
Chapter 2 · Signs, Planets, Birth
जातकम् १
निर्बलं च तदादेश्यं वियोनेर्जन्म पंडितैः ।शीर्षं वक्रगले पादावंसौ पृष्ठमुरस्तथा ॥ ३३ ॥
In the full Narada Purana (Purva Bhaga) this is chapter 55, verse 33.
And the lagna (rising sign) is weak. Then the learned declare a birth from a non-human womb. The limbs of a four-footed animal begin: head, face, neck, two feet, shoulders, back and chest.
Simple meaning: A weak lagna can mean a non-human birth. The verse then lists the creature's body parts.
पार्श्वे कुक्षी त्वपानांघ्री मेढ्रमुष्कौ तथा स्फिजौ ।
For a four-footed animal, the signs from Aries on stand for its body parts in this order.
लग्नांशाद्ग्रहयुग्दृष्ट्वा वर्णान्बलयुताद्वदेत् ।
An animal's colours come from the lagna's navamsha or the strongest planet tied to it. The 7th gives stripes.
विप्रलैस्तनुचंद्रेज्यार्कैस्तरूणां जनिं वदेत् ।
A weak lagna, Moon, Jupiter and Sun point to trees. The navamsha shows land or water trees.