A class of marine invertebrates known as sea squirts, characterized by a sac-like body.

समुद्री झींगुर (Samudri jheengur)

English Usage: "The ascidiacea play a crucial role in the marine ecosystem."

Hindi Usage: "समुद्री झींगुर समुद्री पारिस्थितिकी तंत्र में महत्वपूर्ण भूमिका निभाते हैं।"