Henricia lisa

Henricia lisa is a species of starfish in the family Echinasteridae found in deep water in the northern Atlantic Ocean.

For this purpose, the starfishes have Tiedemann pouches at the bases of the digestive glands; these create water currents by use of flagellae.

These starfishes are often found in association with sponges, benefiting from the current of water they create.

[2] Research in the laboratory shows that Henricia lisa spawns twice a year, doing so when the temperature of the seawater rises or falls through the 3 to 4 °C (37 to 39 °F) range.

At around this time, the starfishes have a tendency to aggregate, presumably thereby increasing their chances of breeding success.