1. Cuthona caerulea. Juvenile, length 4mm. Pale digestive gland. Poorly developed three pigment bands on cerata, blue almost absent. Interior of head red. Pigment flecks on oral tentacles very faintly lemon. LWS, Menai Strait, Wales. Sept. 2011.
2. Cuthona caerulea. Juvenile, length 4mm. Pale digestive gland. Poorly developed three pigment bands on cerata, blue almost absent. Interior of head red. Pigment flecks on oral tentacles very faintly lemon. LWS, Menai Strait, Wales. Sept. 2011.

Cuthona caerulea. Juvenile, length 4mm. Pale digestive gland. Poorly developed three pigment bands on cerata, blue almost absent. Interior of head red. Pigment flecks on oral tentacles very faintly lemon. LWS, Menai Strait, Wales. Sept. 2011.