Henricia aucklandiae is a species of starfish belonging to the family Echinasteridae. These starfishes are found in the Southern Ocean, playing a crucial role in the diverse marine ecosystems of this region.
Description and Characteristics
Henricia aucklandiae typically has five arms, although occasionally individuals with six or seven arms can be found. These arms are relatively short and broad, giving the starfish a compact appearance. The dorsal surface, or upper side, is covered in small, granular ossicles, which are tiny bony plates that give the starfish its rough texture. The color of Henricia aucklandiae can vary, ranging from orange-brown to reddish-brown.
Habitat and Occurrence
Henricia aucklandiae is a common inhabitant of the subtidal zone in the Southern Ocean, primarily found in the benthic zone, which is the seafloor. This species is often encountered in environments with rocky substrates and kelp forests, demonstrating a preference for areas with ample food sources and suitable shelter.
Taxonomy
Henricia aucklandiae is classified within the Class Asteroidea, which encompasses all starfish, and the Order Spinulosida, a group characterized by their spiny and granular bodies. The family Echinasteridae, to which this species belongs, contains numerous other starfish species, many of which also inhabit the deep sea.
Feeding
Henricia aucklandiae is a carnivorous species, feeding primarily on small invertebrates like polychaetes (segmented worms) and crustaceans. They use their tube feet, small suction-cup-like appendages located on the underside of their arms, to capture and manipulate their prey. These tube feet also allow for movement across the seabed, facilitating their search for food.
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