[2][4] Maritigrella crozierae is found in shallow water in the western Atlantic Ocean and the Caribbean Sea.

[2] Maritigrella crozierae is common in the Indian River Lagoon where it feeds exclusively on the mangrove tunicate, Ecteinascidia turbinata.

For this reason, it may be of interest to the pharmaceutical industry as a source of this compound which has been approved for medical use in the European Union.

[2] Maritigrella crozierae is a simultaneous hermaphrodite, which means that an individual has both male and female gonads at the same time.

One individual approaches another from behind, rears up and falls forward, piercing the other with a fine stylet and inserting white bundles of sperm.