Home Guide to Opisthobranchs Nudibranchia Doridina Doridoidei Doridoidea Halgerda willeyi

Halgerda willeyi

Halgerda willeyi  Eliot, 1903

Halgerda_willeyi @ Malapascua, Philippines 12m 5-03-2005 by Erwin Köhler

Taxonomy
 

Superdomain

Biota  

 

Kingdom

Animalia  

 

Phylum

Mollusca  

 

Class

Gastropoda  

 

Subclass

Heterobranchia  

 

Infraclass

Euthyneura  

 

Subterclass

Ringipleura  

 

Superorder

Nudipleura  

 

Order

Nudibranchia  

 

Suborder

Doridina  

 

Infraorder

Doridoidei  

 

Superfamily

Doridoidea  

 

Family

Discodorididae  

 

Genus

Halgerda  

 

Species

Halgerda willeyi  Eliot, 1904

 
 Classification according to Bouchet et al. (2017)
Taxonomic source: World Register of Marine Species (AphiaID: 221077).
Synonyms

  • Doris incii Gray, 1850

Description

Biology

Etymology

  • Halgerda. The character Hallgerður appears in the nordic saga of “Njal“, originally written in Icelandic language near the XIIIth century and that evoques life at the Iceland of the Xth century.
  • Willeyi. Probably dedicated to Dr. Arthur Willey (1867-1942), a British born Canadian zoologist who graduated from London University in 1890. He taught at Columbia University between 1892 and 1894, resigning to work at Cambridge. He was director of the Colombo National Museum in Ceylon (now Sri Lanka) between 1902 and 1910 and then he was appointed Professor of Zoology at McGill University, Canada.

Distribution

Known georeferenced records of the species: Halgerda willeyi
Sources:
: OBIS
: GROC 2010-2011
: Enric Madrenas
: João Pedro Silva
: Bernard Picton
: GBIF.ORG		 : OPK
: VIMAR
: Manuel Ballesteros.
: M@re Nostrum
: Altres fonts
: Marine Regions

Abundance

    Western Mediterranean: ☆☆☆☆☆
    Eastern Mediterranean: ☆☆☆☆☆
    Atlantic Ocean: ☆☆☆☆☆
Month

This chart displays the monthly observation probability for Halgerda willeyi based on our own records.

More pictures

Halgerda_willeyi @ Malapascua, Philippines 12m 5-03-2005 by Erwin Köhler

Bibliography

    Agersborg HP v. 1921. Contributions to the knowledge of the nudibranchiate mollusk, Melibe leonina (Gould). Amer. Naturalist 55(638):222-253; 12 figs.
    Ballesteros M, Madrenas E, Pontes M. 2025. OPK - Opistobranquis. Available from https://opistobranquis.info/.
    Behrens DW, Petrinos C, Schrurs C. 2005. Nudibranch behavior. Jacksonville, Fla.: New World Publications.
    Bergbauer M. 1998. Bizarre Schonheiten, Teil 1: marine Nachtschnecken der Ordnung  Nudibranchia. Aquarium (Bornheim) 351:33-40.
    Bergh LSR. 1905. Die Opisthobranchiata der Siboga-Expedition. Monographie 50, pp. 1-248, pls. 1-20.
    Bertsch H, Johnson S. 1982. Three new species of dorid nudibranchs (Gastropoda: Opisthobranchia) from the Hawaiian Islands. Veliger 24(3):208-218.
    Debelius H. 1998. Red Sea reef guide : Egypt, Israel, Jordan, Sudan, Saudi Arabia, Yemen, Arabian Peninsula (Oman, UAE, Bahrain). IKAN-Unterwasserarchiv. 321 p.
    Debelius H. 1996. Nudibranchs and Sea Snails: Indo-Pacific Field Guide. IKAN-Unterwasserarchiv, Frankfurt, Germany, 321 pp, 1000+ color illus.
    Debelius H, Kuiter RH. 2007. Nudibranchs of the world. Frankfurt: IKAN- Unterwasserarchiv. 360 pp. p.
    Dekker H, Orlin Z. 2000. Check-list of Red Sea Mollusca. Spirula, Newsletter Vita Marina  Mededelingenblad 47(suppl.):1-46.
    Domínguez M, Moreira J, Troncoso JS. 2004. Datos anatómicos y morfológicos de gasterópodos opistobranquios de Papua Nueva Guinea. Iberus, Revista de la Sociedad Española de  Malacologia 22(1):85-114.
    Imamoto J. 2001 2014. Halgerda willeyi accessed through: Umiushi.info on 2014-12-14. Available from http://www.umiushi.info/kanri/photo_sql_eng.php?act=PSP&gakumei1=Halgerda&gakumei2=willeyi&location_code=0000#.
    Long SJ. 2006. Bibliography of Opisthobranchia 1554-2000. Bayside Books & Press, Tustin, CA, U.S.A. 672p.
    McDonald G. 2009. Bibliographia Nudibranchia. 2nd Online Edition, Annotated. 1072 pp  Institute of Marine Sciences, University of California, Santa Cruz. Available from http://escholarship.org/uc/item/8115h0wz.
    Ono A. 2004. Opisthobranchs of Ryukyu Islands. Rutles Inc., Japan.
    Ono A. 1999. Opisthobranchs of Kerama Islands. TBS Tokyo 184p.; 500+ photos.
    Prkić J, Petani A, Iglić Ð, et al. 2018. Stražnjoškržnjaci Jadranskoga Mora: Slikovni Atlas i Popis Hrvatskih Vrsta / Opisthobranchs of the Adriatic Sea: Photographic Atlas and List of Croatian Species. Bibinje: Ronilaćki Klub Sveti Roko. 464 p. Available from https://opistobranquis.info/en/recursos/llibres-recomanats/opisthobranchs-of-the-adriatic-sea/.
    Pruvot Fol A. 1933. Mission Robert Ph. Dollfus en Egypte. Opisthobranchiata. Memoires de l’Institut d’Egypte 21:89-159, pls. 1-4.
    Rudman WB. 1978. The dorid opisthobranch genera Halgerda Bergh and Sclerodoris Eliot from the Indo-West Pacific. Zoological Journal of the Linnean Society 62: 59-88.
    Rudman WB, Willan RC. 1998. Opisthobranchia, Chapter 16, Introduction, pp. 915-942. In:  Pamela L. Beesley, Graham J. B. Ross, & Alice Wells. Mollusca: the southern synthesis. Fauna of  Australia. Vol. 5, part B, pp. i-viii, 565-1234. CSIRO Publishing, Melbourne.
    Rudman W.B. et al. 1998 2010. Halgerda willeyi accessed through: Sea Slug Forum on 2014-12-14. Available from http://seaslugforum.net/showall/halgwill.
    Su Y, Huang LJ, Chang YW, et al. 2009. Temporal changes in nudibranch  composition at a coastal site off Penghu (The Pescadores) in the Taiwan Strait. Zoological Studies  48(4):448-459.
    Suzuki K. 2000. Opisthobranchs of Izu Peninsula. TBS, Tokyo 184p.; 500+ clr. photos.
    Turk T. 2000. The Opistobranch mollusks (Cephalaspidea, Saccoglossa, Notaspidea, Anaspidea and Nudibranchia) of the Adriatic Sea with special reference to Slovenian coast. Annales, Series Historia Naturalis, 10, 161-172.
    Valdés A. 2002. Review of the genus Actinocyclus Ehrenberg, 1831 (Opisthobranchia: Doridoidea). Veliger 45 (3): 193-202.
    Valdés Á, Fahey SJ. 2006. Dorid nudibranchs described by J.E. Gray in M.E. Gray, 1842-1857 (Mollusca Opisthobranchia). Records of the Western Australian Museum Supplement 69: 95-102.
    Vayssiere AJBM. 1911. Sur les Opisthobranches et sur les Marseniades du golfe de Tadjoura. Comptes Rendus Hebdomadaires des Seances de l’Academie des Sciences 153:1164-1166.
    Vayssiere AJBM. 1911. Note sur les mollusques Nudibranches, Marseniades et Oncidides recueillis dans le Golfe d’Aden, a Djibouti, par m Ch. Gravier, en 1904. Bulletin du Museum National d’Histoire Naturelle, Paris 17:442-443.
    Vayssiere AJBM. 1912. Recherches zoologiques et anatomiques sur les Opisthobranches de la Mer Rouge et du Golfe d’Aden. Deuxieme Partie: opisthobranches (suite et fin) Marseniades, Oncidiides. Annales de la Faculte des Sciences de Marseille 20(Suppl):5-157, pls. 1-11.
    Willan RC, Coleman N. 1984. Nudibranchs of Australasia, 56 pp. Sea Australia Productions Ltd.
    WoRMS Editorial Board. 2025. World Register of Marine Species. WoRMS. Available from http://www.marinespecies.org.
    Yonow N. 2008. Sea slugs of the Red Sea. 304 pp. Sofia-Moscow: Pensoft.
    Yonow N. 1990. Red Sea Opisthobranchia. 3. The orders Sacoglossa, Cephalaspidea, and Nudibranchia: Doridacea (Mollusca, Opisthobranchia). Fauna of Saudi Arabia : 286-299.
    Yonow N. 2008. Opisthobranchs of the Gulf of Eilat and the Red Sea: an account of similarities and differences, pp. 177-196. In: F. Por (Ed.). Aqaba - Eilat, The improbable gulf. Environment, biodiversity and preservation. Magnum Press, Jerusalem.
    Yonow N, Anderson RC, Buttress SG. 2002. Opisthobranch molluscs from the Chagos Archipelago, Central Indian Ocean. Journal of Natural History36(7):831-882; illus.

    Bibliography based on the works by Steve Long, 2006. Bibliography of Opisthobranchia 1554-2000 and Gary McDonald, 2009. Bibliographia Nudibranchia, with later updates from other resources.

Further reading

Cite this article as:

Ballesteros, M., Madrenas, E. & Pontes, M. (2012-2025) "Halgerda willeyi" in OPK-Opistobranquis. Published: 01/05/2015. Accessed: 03/02/2025. Available at (https://opistobranquis.info/en/?p=19407)