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''Halgerda carlsoni'' is a species of sea slug, a dorid nudibranch, shell-less marine gastropod mollusks in the family Discodorididae.〔( Dayrat B. 2010. ''A monographic revision of discodorid sea slugs (Gastropoda, Opisthobranchia, Nudibranchia, Doridina)''. Proceedings of the California Academy of Sciences, Series 4, vol. 61, suppl. I, 1-403, 382 figs. )〕 ==Description== This animal is one of a group of mainly white species of ''Halgerda'' with orange markings. This species can be more than 5 cm in length. Its body is massive, stocky and has no skirt, that means that the mantle and the foot are one. The body is covered with tubercles of various sizes whose top is orange to red with a white rimmed at the base. The background body color is translucent white with dense punctuation of very small red-orange dots. The mantle edge is trimmed with small tubercles tipped with orange to red dots. Rhinophores and gills are retractable, translucent and speckled with dark spots. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Halgerda carlsoni」の詳細全文を読む スポンサード リンク
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