Revision and redescription of the species previously included in the genus Amphilaphis Studer and Wright in Studer, 1887 (Octocorallia: Primnoidae)


  • Rebeca Zapata-Guardiola Departamento de Fisiología y Zoología, Facultad de Biología, Universidad de Sevilla
  • Pablo J. López-González Departamento de Fisiología y Zoología, Facultad de Biología, Universidad de Sevilla



Cnidaria, new genus, new subgenus, Faxiella, Primnocapsa, Thouarella


The taxonomy of the primnoid genus Amphilaphis Studer and Wright in Studer, 1887 has been in a confused state for a long time and a revision of the species included in that genus has become a necessity. We have revised and redescribed the species previously included in the genus using up-to-date technology, such as polyp and sclerite images obtained with scanning electron microscopy (SEM). As a result of this study, because the type species of Amphilaphis is actually a Thouarella species, we consider the genus Amphilaphis to be no longer valid. One of the species previously considered in Amphilaphis has a set of morphological characters that are not recognizable in any of the current primnoid genera. Primnocapsa n. gen. has a dichotomous branching pattern, polyps placed singly, in spirals around the branchlets, 8 opercular scales with the inner surface keeled and with 2 mounds basally and 8 marginal scales offset from the operculars. The new genus is described and illustrated. Moreover, one of the re-examined species has been included in a new subgenus, Faxiella n. subgen. of Plumarella Gray, 1870 because it has polyps placed in pairs. Finally, the remaining re-examined species have been included in the genus Thouarella Gray, 1870, one of the most specious primnoid genera.


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Alderslade P. 1998. Revisionary systematics in the gorgonian family Isididae, with description of numerous new taxa (Coelenterata, Octocorallia). Rec. W. Aust. Mus. 55: 1-359.

Arntz W.E., Gutt J., Klages M. 1997. Antarctic marine biodiversity: an overview. In: Battaglia B., Valencia J., Walton D.W.H. (eds.), Antarctic Communities: species, structure and survival. Cambridge Univ. Press, pp. 3-14.

Bargelloni L., Stephani M. Zane, Patarnello L. T. 2000. Mitochondrial phylogeny of notothenioids: a molecular approach to Antarctic fish evolution and biogeography. Syst. Biol. 49: 114-129.

Briggs J.C. 2003. Marine centres of origin as evolutionary engines. J. Biogeogr. 30: 1-18.

Bayer F.M. 1980. Armadillogorgia cyathella and Ophidiogorgia paradoxa, two new genera and species of primnoid octocorals (Coelenterata: Anthozoa) from South Georgia and South Orkney Islands. Proc. Biol. Soc. Wash. 93(1): 216-228.

Bayer F.M. 1981. Key to the genera of Octocorallia exclusive of Pennatulacea (Coelenterata: Anthozoa), with diagnoses of new taxa. Proc. Biol. Soc. Wash. 94(3): 901-947.

Bayer F.M. 1988. Mirostenella articulata, a remarkable new genus and species of primnoid octocoral with uncalcified axial nodes. Proc. Biol. Soc. Wash. 101(2): 251-256.

Bayer F.M. 1996. New Primnoid Gorgonians (Coelenterata: Octocorallia) from Antarctic waters. Bull. Mar. Sci. 58(2): 511-530.

Bayer F.M. 1998. A review of the circumaustral gorgonacean genus Fannyella Gray, 1870 with description of five new species (Coelenterata: Octocorallia: Primnoidae). Senckenb. Biol. 77(2): 161-204.

Bayer F.M., Stefani J. 1989. Primnoidae (Gorgonacea) de Nouvelle-Calédonie. Bull. Mus. Natl. His. Nat. Paris (4) 10(A) 3: 449-476.

Bayer F.M., Grasshoff M., Verseveldt J. 1983. Illustrated trilingual glossary of morphological and anatomical terms applied to Octocorallia. E.J. Brill/Dr. W. Backhuys, Leiden, 75 pp.

Cairns S.D. 2007. Studies on western Atlantic Octocorallia (Gorgonacea: Primnoidae). Part 8: New records of Primnoidae from the New England and Corner Rise Seamounts. Proc. Biol. Soc. Wash. 120(3): 243-263.[243:SOWAOG]2.0.CO;2

Cairns S.D. 2010. Review of Octocorallia (Cnidaria: Anthozoa) from Hawai’i and Adjacent Seamounts. Part 3: Genera Thouarella, Plumarella, Callogorgia, Fanellia and Parastenella. Pac. Sci. 64(3): 413-440.

Cairns S.D. 2011. A Revision of the Primnoidae (Octocorallia: Alcyonacea) from the Aleutian Islands and Bering Sea. Smithson. Contrib. Zool. 634: 1-55.

Cairns S.D., Bayer F.M. 2009. A Generic Revision and Phylogenetic Analysis of the Primnoidae (Cnidaria: Octocorallia). Smithson. Contrib. Zool. 629: 1-79.

Clarke A., Crame J.A. 1992. The Southern Ocean benthic fauna and climate change: a historical perspective. Philos. Trans. R. Soc. Lond. B. 338(1285): 299-309.

Crame J.A. 1999. An evolutionary perspective on marine faunal connections between southernmost South America and Antarctica. Sci. Mar. 63(1): 1-14.

Griffiths H.J., Barnes D.K.A., Linse K. 2009. Towards a general ized biogeography of the Southern Ocean benthos. J. Biogeogr. 36: 162-177.

Kinoshita K. 1908a. Gorgonacea no ikka Primnoidae ni tsuite. Dobutsugaku zasshi 20(242): 517-528.

Kinoshita K. 1908b. Diplocalyptra, eine neue Untergattung von Thouarella (Primnoidae). Annot. Zool. Jap. 7(1): 49-60.

Kükenthal W. 1907. Gorgoniden der Deutschen Tiefsee-Expedition. Zool. Anz. 31(7): 202-212.

Kükenthal W. 1912. Die Alcyonaria der deutschen Sudpolar Expedition 1901-1903. Dtsch. Sudpolar-Exped. 13. Zoologie 5(3): 289-349.

Kükenthal W. 1915. System und Stammesgeshichte der Primnoidae. Zool. Anz. 46 (5): 142-158.

Kükenthal W. 1919. Gorgonaria. Wiss. Ergebn. Dtsch. Tiefsee-Exped. “Valdivia” 13(2): 1-946.

Kükenthal W. 1924. Dass Tierreich 47. Coelenterata: Gorgonaria. Walter de Gruyter & Co., Berlin, 478 pp.

López-González P.J., Gili J.M. 2002. A new primnoid genus (Anthozoa: Octocorallia) from the Southern Ocean. Sci. Mar. 66(4): 383-397.

Menneking F. 1905. Uber die Anordnung der Schuppen und das Kanalsystem bei Stachyodes ambigua (Stud.), Caligorgia flabellum (Ehrb.), Calyptrophora agassizii (Stud.), Amphilaphis abietina (Stud.) und Thouarella variabilis (Stud.). Arch. Naturgesch. 71, 1(3): 245-266, pls. 8-9.

Nutting C.C. 1908. Descriptions of the Alcyonaria collected by the U.S. Bureau of Fisheries steamer Albatross in the vicinity of the Hawaiian Islands in 1902. Proc. U. S. Natl. Mus. 34: 543-601.

Pasternak F.A. 1981. Alcyonacea and Gorgonacea. In: Kuznetsov AP, Mironov AN (eds.), Benthos of the submarine mountains Marcus-Necker and adjacent Pacific regions. Moscow, Akad. Nauk. 40-55. International Commission on Zoological Nomenclature. 1999. International Code of Zoological Nomenclature, 4th edition. London: International trust for Zoological Nomenclature, c/o Natural History Museum, London.

Rodríguez E., López-Gonzáez P.J., Gili J.M. 2007. Biogeography of Antarctic sea anemones (Anthozoa, Actiniaria): What do they tell us about the origin of the Antarctic benthic fauna? Deep-Sea Res. Part. II 54: 1876-1904.

Studer T. 1887. Versuch eines systems der Alcyonaria. Arch. Naturgesch. 53(1): 1-74.

Thomson J.A., Mackinnon D.L. 1911. The alcyonarians of the “Thetis” Expedition. Aust. Mus. Mem. 4: 661-695.

Versluys J. 1906. Die Gorgoniden der Siboga-Expedition. II. Die Primnoidae. Siboga-Exped. 13a: 1-187.

Williams G.C. 1995. Living genera of sea pens (Coelenterata: Octocorallia: Pennatulacea): illustrated key and synopses. Zool. J. Linn. Soc. 113: 93-140.

Williams G.C. 2011. The global diversity of Sea pens (Cnidaria: Octocorallia: Pennatulacea). PLoS ONE 6(7): e22747. PMid :21829500    PMCid:3146507

Wright E.P., Studer T. 1889. Report on the Alcyonaria collected by H.M.S. Challenger during the years 1873-1876. Rep. Sci. Res. Voyage H.M.S. Challenger during the years 1873-76. Zool. 31:i-lxxvii, 1-314.

Zapata-Guardiola R., López-González P.J. 2010a. Four new species of Thouarella (Anthozoa: Octocorallia: Primnoidae) from Antarctic waters. Sci. Mar. 74(1): 131-146.

Zapata-Guardiola R., López-González P.J. 2010b. Two new gorgonian genera (Octocorallia: Primnoidae) from Southern Ocean waters. Polar Biol. 33: 313-320.

Zapata-Guardiola R., López-González P.J. 2010c. Two new species of Antarctic gorgonians (Octocorallia: Primnoidae) with a redescription of Thouarella laxa Versluys, 1906. Helg. Mar. Res. 64: 169-180.




How to Cite

Zapata-Guardiola R, López-González PJ. Revision and redescription of the species previously included in the genus Amphilaphis Studer and Wright in Studer, 1887 (Octocorallia: Primnoidae). Sci. mar. [Internet]. 2012Jun.30 [cited 2024Jul.24];76(2):357-80. Available from: