| 词条 | Roboastra gracilis |
| 释义 |
| image = Roboastra gracilis.jpg | image_caption = Roboastra gracilis | genus = Roboastra | species = gracilis | authority = (Bergh, 1877)[1] | synonyms = }}Roboastra gracilis is a species of sea slug, a polycerid nudibranch, a marine gastropod mollusc in the family Polyceridae.[2] DistributionThis sea slug is found in the tropical western Pacific Ocean. DescriptionRobastra gracilis is a relatively small nudibranch reaching only 20–25 mm (2-2.5 cm) in length. References1. ^Bergh L. S. R. (1877). Malacologische Untersuchungen. In: Semper C. G. Reisen im Archipel der Philippinen, Wissenschaftliche Resultate. Band 2, Heft 11: 429-494, Pls. 54-57. 2. ^Bouchet P. & Rocroi J.-P. (Ed.); Frýda J., Hausdorf B., Ponder W., Valdes A. & Warén A. 2005. Classification and nomenclator of gastropod families. Malacologia: International Journal of Malacology, 47(1-2). ConchBooks: Hackenheim, Germany. {{ISBN|3-925919-72-4}}. ISSN 0076-2997. 397 pp. http://www.vliz.be/Vmdcdata/imis2/ref.php?refid=78278 External links{{commons category|Roboastra gracilis}}
2 : Polyceridae|Gastropods described in 1877 |
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