Roboastra gracilis is a species of sea slug, a polycerid nudibranch, a marine gastropod mollusc in the family Polyceridae.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. . ISSN 0076-2997. 397 pp. http://www.vliz.be/Vmdcdata/imis2/ref.php?refid=78278
Distribution This sea slug is found in the tropical western Pacific Ocean.
Description Robastra gracilis is a relatively small nudibranch reaching only 20–25 mm (2-2.5 cm) in length.
References
External links
http://www.seaslugforum.net/robograc.htm http://www.museum.wa.gov.au/dampier/species_view.asp?speciesID=1708