Naef, 1916
Description
Adult. Similar to Sepietta oweniana, but with a proportionately more slender, elongate body. Small, total length without tentacles up to 50 mm. Tentacle club with less than 20 rows of suckers. Club suckers are very small, in more than 16 rows; dorsal suckers are not larger than ventral suckers. There are 4 clearly enlarged suckers on left dorsal arm of male in dorsal row of suckers distal to the copulatory apparatus. Horn of the copulatory apparatus is short, much shorter than half of the arm width, slightly bent .
Juvenile. Description not available. Hatchlings come out as miniature adults (see Lu et al., in Sweeney et al., 1992, p. 21.). The identification characters for juveniles are hence similar to those that are used for the identification of adults.
Size
Length up to 5 cm (without tentacles).
Depth range
Upper sublittoral.
Distribution in the North Sea
Lusitanian species, rarely recorded from the northern North Sea.
World distribution
NE Atlantic, from S Norway, Orkney Islands to Mediterranean Sea and Atlantic coast of Marocco; coming north with the Atlantic Drift and found off Ireland and W Scotland.