Altuna, Á. (2009). Eucheilota menoni Kramp 1959 (Cnidaria: Hydrozoa: Lovenellidae), an Indo-Pacific species new to the Atlantic fauna from the Bay of Biscay (north of Spain). Aquatic Invasions. 4(2): 353-356.
The Indo-Pacific hydrozoan Eucheilota menoni Kramp 1959 (Cnidaria: Hydrozoa: Lovenellidae) is recorded from the Basque coast (Bay of Biscay, Spain, northeastern Atlantic). This is the first record of the species from the Atlantic. Polyps of the species, previously unknown to science, were discovered on the floating docks of a fishing harbour, and colonies were releasing medusae at the time of collection. The species has been introduced to the Iberian Peninsula very likely by ship fouling, and may soon be discovered in nearby areas including the Mediterranean Sea. Given that the medusa is known from the Red Sea (closest record), it could be a Lessepsian migrant but, despite being an easy-to-recognize medusa, there are no Mediterranean records.