The Ink-stain Dorid, scientifically known as Polycera alabe, is a captivating species of sea slug belonging to the family Polyceridae. These vibrant creatures exhibit a unique combination of striking colors and intricate patterns, making them a fascinating sight to behold in the underwater world.
Description & Characteristics
Polycera alabe showcases a distinctive appearance with a body length reaching up to 25 mm, adorned with a captivating mix of colors and patterns. The body is typically a translucent white, interspersed with an array of dark brown to black blotches or lines. This striking coloration contributes to their common name, the “Ink-stain Dorid.”
Habitat and Occurrence
Polycera alabe can be found inhabiting a wide range of marine zones, from the subtidal to the deep zone of the oceans. They are frequently encountered in the sublittoral and infralittoral zones, which extend from the lower limit of the intertidal zone to the shelf edge at approximately 200 meters depth. These regions are characterized by their neritic environments, encompassing coastal waters and continental shelves. This adaptability allows the Ink-stain Dorid to thrive in diverse aquatic ecosystems.
Taxonomy
Polycera alabe belongs to the Class: Gastropoda, Order: Nudibranchia, and Family: Polyceridae. This classification places it within the diverse group of sea slugs, characterized by their lack of external shells and often striking coloration.
Feeding
Polycera alabe is a food specialist, primarily consuming Bryozoans, commonly known as “sea mats.” These tiny, colonial animals provide the Ink-stain Dorid with a vital food source, contributing to their survival and growth within their marine habitats.
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