Do not eat creatures that live in water other than kosher fish

'Do not render yourselves detestable through any of the swarming things that swarm; and you shall not make yourselves unclean with them so that you become unclean.

Hebrew

מג אַל-תְּשַׁקְּצוּ, אֶת-נַפְשֹׁתֵיכֶם, בְּכָל-הַשֶּׁרֶץ, הַשֹּׁרֵץ; וְלֹא תִטַּמְּאוּ בָּהֶם, וְנִטְמֵתֶם בָּם.

Greek

43 καὶ οὐ μὴ βδελύξητε τὰς ψυχὰς ὑμῶν ἐν πᾶσι τοῖς ἑρπετοῖς τοῖς ἕρπουσιν ἐπὶ τῆς γῆς καὶ οὐ μιανθήσεσθε ἐν τούτοις καὶ οὐκ ἀκάθαρτοι ἔσεσθε ἐν αὐτοῖς·

• Parashah: Shemini
• Sefer HaChinuch: 164
• Mishneh Torah: Holiness — Forbidden Foods

• Leviticus 11:43

Enumeration and classification from BibleData. The Greek is the Septuagint reading of the same verse, carried by the source for comparison.