Dolabella auricularia: Sea Hare Care and Algae Control

Dolabella Auricularia

Latin name: Dolabella auricularia Discovered by: Lightfoot, 1786 Classification:
  • Kingdom: Animalia.
  • Phylum: Mollusca
  • Class: Gastropoda / Subclass: Opisthobranchia / Superfamily: Aplysioidea
  • Family: Aplysiidae
  • Genus: Dolabella
  • Species: Dolabella auricularia

Description: The body is wedge-shaped, with a small head, and ends in a broad, flattened posterior disc. It has two projections that resemble ears (which is why it is known as a sea hare…).

Reproduction: It is hermaphroditic, and mating can occur in groups. In this case, the male and female reproductive organs can be active simultaneously in the same individual. The eggs form a mass resembling strands of spaghetti.

Habitat: On flat, algae-covered bottoms in areas with low water flow. Distribution: Indo-Pacific, also in the eastern Pacific. Color: Variable, ranging from brown with white spots to light green. Size: Up to 450–500 grams.

Caution: When frightened, it releases purple ink that may be harmful to other inhabitants (I do not know of any documented case, but…).

Feeding: A generally nocturnal herbivore that hides beneath rocks during the day (depending on the individual…).

Natural predators: Some documented cases involving Monotaxis grandocularis, Arothron hispidu (the latter is a pufferfish)….

Notes: It is delicate and difficult to acclimate. An insatiable grazer, it may die of starvation. Be careful with circulation pumps….

PHOTOGRAPHS

Dolabella Auricularia -2

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