Aegiridae (P. Fischer, 1883)

Broms, Fredrik, 2024, Diversity of nudibranchs in shallow water habitats in the region of Tromsø, northern Norway, Fauna norvegica 43, pp. 84-109 : 92

Family Aegiridae (P. Fischer, 1883)

Aegires punctilucens (Orbigny, 1837) Figure 2G

Material examined: One specimen, 19 February 2021, 6 mm, FB, NTNU-VM-84437/NUIT-1001 ( Figure 2G ); One specimen, 14 November 2023, 5.5 mm, FB, NUIT-1336.

Localities: HIL, KVA

Distribution and remarks: Aegires punctilucens is known to occur in southern to mid-Norway ( Evertsen & Bakken 2005) and has also been reported north to Saltstraumen in Nordland ( Moen & Svensen 2020). Observations are very few due to the small size and the exceptionally good camouflage of the species. The only previously known observations from intertidal waters stem from the conscientious investigations by Carl Dons in Trøndelag ( Dons 1932, 1942a). The observations by the present study are the first records from the Tromsø region and significantly extends the northern range of A. punctilucens .

Figures

Figure 2. A. Doris pseudoargus, NTNU VM-84407/NUIT-1126, B. Cadlina laevis, NUIT-1277, C. Ancula gibbosa, NTNU VM-85735/NUIT-1009-1, D. Acanthodoris pilosa, NTNU VM-84546/NUIT-1019, E. Onchidoris bilamellata, photo record, 25 May 2020, F. Onchidoris muricata, photo record, 06 November 2021, G. Aegires punctilucens, NTNU VM-84437/NUIT-1001, H. Limacia clavigera, NUIT-1308, I. Palio dubia, photo record, 26 August 2020, J. Palio nothus, NUIT-1326, K. Polycera norvegica, NTNU VM-85641/NUIT-1218, L. Polycera quadrilineata, photo record, 09 October 2020. Scale bar: 10 mm. All photos: Fredrik Broms.