Rostanga elandsia

, Rostanga elandsia, Rostanga elandsia
Water Type: Marine

Rostanga elandsia is a species of sea slug, a colorful and fascinating nudibranch, found in the marine environment. This species belongs to the family Discodorididae, known for their often brightly colored and patterned bodies.

Description & Characteristics

Rostanga elandsia is a relatively small nudibranch, reaching a maximum size of about 15 mm in length. Its body is typically a vibrant orange-red color with white spots or blotches. The mantle, the fleshy outer covering of the body, has a distinctive, somewhat wrinkled appearance, giving it a textured look. The rhinophores, the sensory organs on the head, are club-shaped and tipped with orange. Rostanga elandsia has a single, prominent gill located on the back of the body near the tail end.

Habitat and Occurrence

Rostanga elandsia is primarily found in shallow coastal waters, typically inhabiting rocky intertidal zones and subtidal areas. This species has been observed in various marine zones, including the infralittoral fringe, a region exposed at low tide, and the lower intertidal zone. Its geographic distribution encompasses the eastern Pacific Ocean, where it is a common sight in the coastal waters of California and Baja California.

Taxonomy

Rostanga elandsia belongs to the Class: Gastropoda, Order: Nudibranchia, and Family: Discodorididae. The classification of this species places it within a diverse group of marine mollusks, highlighting its evolutionary history and relationships to other sea slugs.

Feeding

Rostanga elandsia is a carnivorous nudibranch, feeding primarily on sponges. These sea slugs use their radula, a tongue-like structure with rows of teeth, to scrape and ingest sponge tissue. This diet is important for Rostanga elandsia, providing essential nutrients for growth and survival.

Associated Species

Image References

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