Thorunna
Introduction '''''Thorunna''''' is a genus of sea slugs, dorid nudibranchs, shell-less marine gastropod mollusks in the family Chromodorididae.
Description The genus ''Thorunna'' contains chromodorid nudibranchs with a distinctive radula, which is very small and has 17-25 teeth in a half-row. The lateral teeth are long slender shafts with bluntly bifid tips. Species in this genus rarely exceed  and wriggle or vibrate their gills rhythmically. Anatomically the buccal bulb is very small relative to most chromodorids and the oral tube very long.
Species Species in the genus ''Thorunna'' include:Thorunna africana (6139193367).jpg|''Thorunna africana''Thorunna arbuta LW131018.jpg|''Thorunna arbuta''Thorunna australis 002.jpg|''Thorunna australis''Thoruna fertiva (8192101717).jpg|''Thorunna furtiva''Thorunna halourga (5910988913).jpg|''Thorunna halourga''Thorunna horologia (10.11646-zootaxa.4359.1.1) Figure 13 (cropped).png|''Thorunna horologia''Thorunna punicea (10.11646-zootaxa.4359.1.1) Figure 13 (cropped).png|''Thorunna punicea''; Species brought into synonymy:* ''Thorunna decussata'' (Risbec, 1928) : synonym of ''Noumea decussata'' Risbec, 1928: synonym of ''Verconia decussata'' (Risbec, 1928)* ''Thorunna lapislazuli'' Bertsch & Ferreira, 1974: synonym of ''Felimare lapislazuli'' (Bertsch & Ferreira, 1974)* ''Thorunna scottjohnsoni'' (Bertsch & Gosliner, 1989): synonym of ''Ardeadoris scottjohnsoni'' Bertsch & Gosliner, 1989* ''Thorunna speciosus'' Rudman, 1990: synonym of ''Thorunna speciosa'' Rudman, 1990* ''Thorunna tura'' (Marcus & Marcus, 1967): synonym of ''Mexichromis tura'' (Marcus & Marcus, 1967)
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