The Hypselodoris purpureomaculosa, a vibrant and striking species of nudibranch, is a captivating example of the diverse and fascinating world of marine invertebrates. This colorful sea slug, often referred to as the “Purple-spotted Hypselodoris,” is a captivating sight, showcasing a beautiful blend of colors and patterns.
Description & Characteristics
The Hypselodoris purpureomaculosa is easily recognizable for its bright orange body, adorned with numerous purple spots scattered across its dorsum. Its mantle is generally smooth, with the characteristic rhinophores, two long, slender, sensory organs, extending from the head. The animal has a pair of oral tentacles, used for detecting food and directing it towards the mouth. Its average size ranges from 25 to 50 millimeters, making it a relatively small, but visually striking, nudibranch.
Habitat and Occurrence
The Hypselodoris purpureomaculosa is found in a variety of marine environments, typically in shallow, tropical and subtropical waters. It thrives in coral reefs, rocky shores, and other sheltered locations, often preferring areas with abundant sponge growth. This nudibranch can be found in the Indo-Pacific region, including the Red Sea, the Indian Ocean, and the Pacific Ocean. Their distribution extends across several marine zones, from the intertidal zone to depths of up to 30 meters.
Taxonomy
The Hypselodoris purpureomaculosa belongs to the vast and diverse class Gastropoda, a group that includes snails, slugs, and sea slugs. Within this class, it is further categorized under the Order Nudibranchia, which encompasses the diverse and brightly colored group of sea slugs, lacking a shell. Finally, the Hypselodoris purpureomaculosa is classified under the Family Chromodorididae, a group characterized by their vivid colors and patterns.
Feeding
The Hypselodoris purpureomaculosa is a specialist feeder, relying exclusively on sponges for sustenance. This dietary preference is reflected in its bright colors, which often mimic the hues of its preferred sponge prey. The nudibranch uses its radula, a tongue-like structure with rows of teeth, to scrape the sponge tissue, consuming it as its primary source of nutrition.
Image References