Answer:
"Culebra de collar" is a Spanish equivalent of "water snake" (Natrix natrix).
The Spanish word "culebra" is a feminine noun. Its singular definite article is "la" ("the"), and its singular indefinite article "una" ("a, one"). The preposition "de" means "of, from." The masculine noun "collar" means "necklace." Its singular definite article is "el," and its singular indefinite article "un."
All together, the pronunciation is "koo-LEH-vrah theh koh-YAHR."