[3] The type specimen was collected in the Bay of Biscay and is deposited at the Muséum National d'Histoire Naturelle in Paris.

[4] Sepiola atlantica is a small species which occurs in a variety of marine habitats extending from shallow water to the upper slope of the continental shelf.

In Firemore Bay, Loch Ewe, off the coast of Scotland spawning appears has been recorded as occurring throughput the year, peaking in April and again in July to August.

Related species of bobtail squid are benthic animals that typically hide by burying themselves in soft substrates in daytime, and then at night they emerge to feed.

[1] The resident population of Firemore Bay has a variable age composition, further suggesting that this species has an extended reproductive season.