Wat valt er aan de rugschilden van loligo’s af te lezen?

From 1994 to 2004, the authors carried out an inventory on the cephalopods living in the North Sea. For Loligo forbesi and L. vulgaris, and also for Alloteuthis subulata, previous literature reports that adult male animals, compared with females, have significantly more slender internal pens were confirmed. This does not hold for juveniles. Animals of both Loligo species cannot be distinguished from each nother by the internal pens. A. subulata has smaller pens than either of the above Loligo species.