This broader passage frames the laws of the eight sheratzim and their distinct categories of tum'ah, making it a useful cluster for studying lizards within the halakhic taxonomy of crawling creatures.
אֵלּוּ שֶׁעוֹרוֹתֵיהֶן כִּבְשָׂרָן, עוֹר הָאָדָם, וְעוֹר חֲזִיר שֶׁל יִשּׁוּב. רַבִּי יוֹסֵי אוֹמֵר, אַף עוֹר חֲזִיר הַבָּר. וְעוֹר חֲטוֹטֶרֶת שֶׁל גָּמָל הָרַכָּה, וְעוֹר הָרֹאשׁ שֶׁל עֵגֶל הָרַךְ, וְעוֹר הַפְּרָסוֹת, וְעוֹר בֵּית הַבֹּשֶׁת, וְעוֹר הַשָּׁלִיל, וְעוֹר שֶׁתַּחַת הָאַלְיָה, וְעוֹר הָאֲנָקָה וְהַכֹּחַ וְהַלְּטָאָה וְהַחֹמֶט. רַבִּי יְהוּדָה אוֹמֵר, הַלְּטָאָה כַחֻלְדָּה. וְכֻלָּן שֶׁעִבְּדָן אוֹ שֶׁהִלֵּךְ בָּהֶן כְּדֵי עֲבוֹדָה, טְהוֹרִין, חוּץ מֵעוֹר הָאָדָם. רַבִּי יוֹחָנָן בֶּן נוּרִי אוֹמֵר, שְׁמֹנָה שְׁרָצִים יֵשׁ לָהֶן עוֹרוֹת:
These are the entities whose skin has the same halakhic status as their flesh: The skin of a dead person, which imparts impurity like his flesh; and the skin of a domesticated pig, which is soft and eaten by gentiles, and imparts the impurity of an animal carcass like its flesh. Rabbi Yehuda says: Even the skin of a wild boar has the same status. And the halakhic status of the skin of all of the following animals is also like that of their flesh: The skin of the hump of a young camel that did not yet toughen; and the skin of the head of a young calf; and the hide of the hooves; and the skin of the womb; and the skin of an animal fetus in the womb of a slaughtered animal; and the skin beneath the tail of a ewe; and the skin of the gecko [anaka], and the desert monitor [ko’aḥ], and the lizard [leta’a], and the skink [ḥomet], four of the eight creeping animals that impart ritual impurity after death. Rabbi Yehuda says: The halakhic status of the skin of the lizard is like that of the skin of the weasel and is not like that of its flesh. And with regard to all of these skins, in a case where one tanned them or spread them on the ground and trod upon them for the period of time required for tanning, they are no longer classified as flesh and are ritually pure, except for the skin of a person, which maintains the status of flesh. Rabbi Yoḥanan ben Nuri says: All eight creeping animals enumerated in the Torah have skins whose halakhic status is not that of flesh.