Halgerda rubicunda

Halgerda rubicunda is a species of sea slug, a dorid nudibranch, shell-less marine gastropod mollusks in the family Discodorididae.[2]

Halgerda rubicunda
Scientific classification
Kingdom:
Animalia
Phylum:
Mollusca
Class:
Gastropoda
(unranked):
clade Heterobranchia
clade Euthyneura
clade Nudipleura
clade Nudibranchia
clade Euctenidiacea
clade Doridacea
Superfamily:
Doridoidea
Family:
Discodorididae
Genus:
Halgerda
Species:
H. rubicunda
Binomial name
Halgerda rubicunda
Baba, 1949[1]

Distribution

This species was described from Japan. It has been reported from the Kerama Islands.[3]

Description

Length 1–3 cm. Body elongate-elliptical, the ends equally rounded. Back firm, raised into finely reticulated ridges, with distinct knobs at the points where these ridges join. Branchial plumes 5, bi- or tripinnate. Margins of branchial cavity wavy with 5 valves. Oral tentacles digitiform. General body colour orange-red, a short longitudinal band of dull yellow medianly between the rhinophores, and there is another, but transverse, band of the same colour a short distance in front of the branchiae. No labial plates. Radula formula about 25 X 23-25.0.23-25. The outermost (3-4) laterals finely pectinated at tip, all the remaining laterals simply hamate and smooth.[1]

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References
  1. Baba, Kikutaro. 1949. Opisthobranchia of Sagami Bay collected by His Majesty The Emperor of Japan. 194 pp., 50 pls. Iwanami Shoten, Tokyo.
  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
  3. Halgerda rubicunda on the Okinawa Slug Site, R.F. Bolland
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