Illustrated species account of Rissoella diaphana (Alder, 1848) (Mollusca, Heterobranchia. Including comparison with R. opalina (Jeffreys, 1848) and R. globularis (Forbes & Hanley, 1852). left) https://flic.kr/p/HARucc W/H (left to right): 54%, 59%, 60%.

Illustrated species account of Armina loveni (Bergh, 1866) (Mollusca, Nudibranchia). Includes photographic evidence to correct previous misconceptions about the anatomy of the cephalic shield. https://flic.kr/p/HjKSV3 1: lateral lamellae. 2: penis. 3:

Revised, illustrated species account of Lacuna pallidula (da Costa, 1778) Identification and Biology, (Mollusca, Littorinimorpha). If previous version downloaded please delete it. https://flic.kr/p/2kNL1A2 Lacuna parva shell is white often with three