Reference for Chullin 131:18

ארבה וחרגול כתיב

- It would indeed be as you say had not sol'am been stated, but now that sol'am is actually stated, and serves to include all that are long-headed, it might also be suggested that it shall include every variety, [even those that have but the slightest resemblance to those specified];<span class="x" onmousemove="('comment',' Namely, that have only one of the four characteristics.');">⁹</span>

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