Answer:
"Couleuvre à collier" is a French equivalent of "ringed snake" (Natrix natrix).
The French word "couleuvre" is a feminine noun. Its singular definite article is "la" ("the"), and its singular indefinite article "une" ("a, one"). The preposition "à" means "to, in, at." The masculine noun "collier" means "necklace."
All together, the pronunciation is "koo-luh-vrah koh-lyeh."