Reference for Chullin 131:9

כללא קמא אשר לו כרעים אמר רחמנא דאית ליה אכול דלית ליה לא תיכול

is a further general proposition; we thus have two general propositions separated from each other by several specifications, which include such things as are similar to the particulars specified; accordingly we include all that are similar to those specified even in one respect only.

Jastrow