Fine-Grained Categories of ascidian:

• small:invertebrate,
• marine:invertebrate,
• aquatic:creature,
• sessile:invertebrate,
• lower:chordate,
• pelagic:invertebrate,
• colonial:invertebrate,
• large:larva,
• primitive:chordate,
• larger:invertebrate,
• sessile:organism,
• marine:organism,
• diverse:organism,
• sessile:fauna,
• marine:larva,
• invertebrate:host,
• aggregated:organism,
• underwater:organism,
• symbiotic:microorganism,
• primitive:animal,
• larger:animal,
• colonial:animal,
• modular:organism,
• invertebrate:prey,
• sessile:animal,
• sedentary:organism,
• sedentary:animal,
• invertebrate:chordate,
• little:organism,
• benthic:invertebrate,
• higher:invertebrate,
• aquatic:animal,
• mobile:organism,
• sedentary:invertebrate,
• marine:fauna,
• modular:invertebrate,
• colonial:organism,

Poetic Qualities of ascidian: