user7254: I have heard Lord Buddha has taught a special version of meththa for certain kind of creatures.
Can someone point reference to such a teaching in suttas?

user254: There's the Ahina Sutta: By a Snake, which includes (I won't quote it all),

I have good will for footless beings,
      good will for two-footed beings,
      good will for four-footed beings,
      good will for many-footed beings.  

It's previously mentioned in this answer, which quotes a note that says, "This is one of the few protective charms mentioned in the Pali canon and specifically allowed by the Buddha for monks to use".

7254: <p>I have heard Lord Buddha has taught a special version of meththa for certain kind of creatures.</p>

<p>Can someone point reference to such a teaching in suttas?</p>
 254: <p>There's the <a href="http://www.accesstoinsight.org/tipitaka/an/an04/an04.067.than.html" rel="nofollow noreferrer">Ahina Sutta: By a Snake</a>, which includes (I won't quote it all),</p>

<blockquote>
  <p>I have good will for footless beings,<br>
      good will for two-footed beings,<br>
      good will for four-footed beings,<br>
      good will for many-footed beings.  </p>
</blockquote>

<p>It's previously mentioned in <a href="https://buddhism.stackexchange.com/a/5542/254">this answer</a>, which quotes a note that says, "This is one of the few protective charms mentioned in the Pali canon and specifically allowed by the Buddha for monks to use".</p>
