Elisesione
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Ordo: Phyllodocida
Familia: Hesionidae
Name
Elisesione Salazar-Vallejo, 2016 nomen novum – Wikispecies link – Pensoft Profile
- Hesionella Wesenberg-Lund, 1950: 14.
- Wesenbergia Hartman, 1955: 41; Fauchald 1977[1]: 77; Pleijel 1998[2]: 112, 163 (non Kryger 1943[3]).
Type species
Hesionella problematica Wesenberg-Lund, 1950, by monotypy.
Etymology
The name is a combination of the first name of the late Elise Wesenberg-Lund, and Hesione, which is the type genus for the family, but in order to make it more euphonic, the first two letters of the genus-group name are suppressed; the new name emphasizes the similarities between these two genera. Gender feminine.
Diagnosis
(emended). Hesionini with two antennae; palps simple, lateral to antennae. Eight pairs of tentacular cirri. Dorsal cirri with short or long cirrophores. Notochaetae absent. Aciculae colorless or blackish. Acicular lobes single or double. Neurochaetae with blades bidentate, guards approaching subdistal tooth, or absent. Prepygidial segment with dorsal cirri about 10 times longer than ventral cirri.
Remarks
Wesenbergia Kryger, 1943 was proposed for a group of chalcid hymenopterans, but the name was overlooked by Hartman (1955)[4] when she proposed the same genus-group name for hesionid polychaetes. Despite Wesenbergia Kryger, 1943 being considered a synonym of Macromesus Walker, 1848 within Hymenoptera, the name still cannot be made available (ICZN 1999[5], Art. 23, Principle of Priority).
Homonymies are not allowed in Zoological Nomenclature (ICZN 1999[5], Chap. 12) and junior homonyms must be replaced (Art. 60). Further, the Code of Ethics includes (ICZN 1999[5], Point 3) a recommendation for the procedure, especially if the author(s) involved are alive. There are no junior synonyms available and this explains why a new name must be proposed, and both authors involved are deceased.
As indicated above, Wesenbergia Hartman, 1955 is a junior homonym and must be replaced, even though the senior homonym is regarded as a junior synonym (Heqvist 1960[6]). In naming Wesenbergia, Hartman used the first word in the compound last name of Elise Wesenberg-Lund. Using this same principle, the new name, Elisesione, is derived from the first name of the author.
Elisesione nom. n. is closely related to Hesione as shown by Ruta et al. (2007)[7]. They differ, however, not only by the presence of simple palps in the former, but because the body is more or less cylindrical, not widened medially or posteriorly as in Hesione species. In fact, the lateral cushions, which are typically divided into 2-3 sections and can vary on their degree of lateral expansion in Hesione, are rather solid, undivided and projected anteriorly in Elisesione nom. n. This feature was noted in the original description when the body was characterized as scolopendriform (Wesenberg-Lund 1950[8]: 14). Further, the anterior eyes of Wesenbergia (only recorded for the shallow water species), are half-moon shaped and about three times larger than posterior ones; this is another feature not recorded for any Hesione species.
Savigny (1822[9]: 39) included four anterior appendages in the generic diagnosis of Hesione, but because they were not included in the description (Savigny 1822[9]: 40), nor in the corresponding illustration (his plate 3, figure 3), they were regarded as a mistake. Grube (1867[10]: 65) corrected this and later Chamberlin (1919[11]: 185) used this in his key to genera. However, by regarding Hesione as having four antennae and eight pairs of tentacular cirri, de Quatrefages (1866)[12] proposed Fallacia for species having two antennae: Hesione pantherina Risso, 1826 and Hesione proctochona Schmarda, 1861, whereas Claparède (1868[13]: 541) proposed Telamone for species having two antennae and six pairs of tentacular cirri with Hesione sicula delle Chiaje, 1822 as its only species. Fallacia and Telamone are junior synonyms of Hesione (Fauvel 1911[14]: 374, Chamberlin 1919[11]: 186, Pleijel 1998[2]: 107), and Hesione sicula and Hesione pantherina have been regarded as synonyms (Fauvel 1923[15]: 233).
Distribution
The two known species in the genus have been found in different ecological conditions and geographical regions. The type species, Elisesione problematica, was found in the North Atlantic, off Iceland, in sediments taken at 550 m depth, and the new species, Elisesione mezianei sp. n., was collected in the Western South Pacific, in hard substrates in shallow water (35 m), in the Wallis and Futuna Islands. Another species, previously recorded as Elisesione problematica from Japan (Imajima 2003[16]) differs from the nominal form in several features. For example, in the Japanese specimens palps are half as long as antennae (rather than about equal-sized), and ventral cirri extend beyond chaetal lobe (rather than short of it); pigmentation also differs because the Japanese specimens are brownish with dorsal cirrostyles banded, whereas the Icelandic specimens are pale yellowish.
Key to species of Elisesione nomen novum
Taxon Treatment
- Salazar-Vallejo, S; 2016: Elisesione, a new name for Wesenbergia Hartman, 1955, and the description of a new species (Annelida, Hesionidae) ZooKeys, (632): 1-12. doi
Other References
- ↑ Fauchald K (1977) The polychaete worms. Definitions and keys to the orders, families and genera. Natural History Museum of Los Angeles County, Science Series 28: 1–188. http://www.vliz.be/imisdocs/publications/123110.pdf
- ↑ 2.0 2.1 Pleijel F (1998) Phylogeny and classification of Hesionidae (Polychaeta). Zoologica Scripta 27: 89–163. doi: 10.1111/j.1463-6409.1998.tb00433.x
- ↑ Kryger J (1943) Two notes on chalcid flies. Entomologiske Meddelelser, Copenhagen 22: 360–363. http://www.nhm.ac.uk/resources/research-curation/projects/chalcidoids/pdf_Y/Kryger943.pdf
- ↑ Hartman O (1955) Endemism in the North Pacific Ocean, with emphasis on the distribution of marine annelids, and descriptions of new or little known species. Essays in the Natural Sciences in Honor of Captain Allan Hancock. University of Southern California, Los Angeles, 39–60. http://biodiversitylibrary.org/page/5227326
- ↑ 5.0 5.1 5.2 ICZN (1999) International Code of Zoological Nomenclature (4th edn). International Trust for Zoological Nomenclature (The Natural History Museum), London, 306 pp. http://www.iczn.org/iczn/index.jsp
- ↑ Heqvist K (1960) Notes on Macromesus Walk. (Hym. Chalcidoidea, Pteromalidae) and description of a new species. Entomologisk tidskrift 81: 140–143. http://www.nhm.ac.uk/resources/research-curation/projects/chalcidoids/pdf_Y/Hedqvi960c.pdf
- ↑ Ruta C, Nygren A, Rousset V, Sundberg P, Tillier A, Wiklund H, Pleijel P (2007) Phylogeny of Hesionidae (Aciculata, Polychaeta), assessed from morphology, 18S rDNA, 28S rDNA, 16S rDNA and COI. Zoologica Scripta 36: 99–107. doi: 10.1111/j.1463-6409.2006.00255.x
- ↑ Wesenberg-Lund E (1950) Polychaeta. Danish Ingolf-Expedition 4(14): 1–92.
- ↑ 9.0 9.1 Savigny J (1822) Système des Annelides, principalement de celles des Côtes de l'Égypte et de la Syrie, offrant les Caractères tant distintifs que naturels des Ordres, Familles et Genres, avec la Description des Espèces. Description de l’Egypte. Histoire naturelle, Paris 21: 325–472. [reprint pages 1–128; publication date fixed after Sherborn, 1897, and after ICZN 1987, Op. 1461]
- ↑ Grube A (1867(1866)) Neue Anneliden aus den Gattungen Eunice, Hesione, Lamprophaës und Travisia. Jahres-Bericht der Schlesischen Gesellschaft für vaterländische Cultur 44: 64–66. http://biodiversitylibrary.org/page/46548206
- ↑ 11.0 11.1 Chamberlin R (1919) The Annelida Polychaeta of the Albatross Tropical Pacific Expedition, 1891–1905. Memoirs of the Museum of Comparative Zoology of Harvard College 31: 1–514. doi: 10.5962/bhl.title.49195
- ↑ de Quatrefages A (1866) Histoire Naturelle des Annélles marines et d’Eau Douce. Annélides et Gephyriens. Librarie Encyclopèdique de Roret, Paris.
- ↑ Claparède E (1868) Les annélides chétopodes du Golfe de Naples. Mémoires de la Société de Physique et d’Histoire Naturelle de Genève 19(2): 313–584. http://biodiversitylibrary.org/page/14309905
- ↑ Fauvel P (1911) Annélides polychètes du Golfe Persique recueillies par M. N. Bogoyawlensky. Archives de Zoologie Expérimentale et Générale 6: 353–439.
- ↑ Fauvel P (1923) Polychètes errantes. Faune de France 5: 1–488. http://www.faunedefrance.org/bibliotheque/docs/P.FAUVEL(FdeFr05)Polychetes-errantes.pdf
- ↑ Imajima M (2003) Polychaetous annelids from Sagami Bay and Sagami Sea collected by the Emperor Showa of Japan and deposited at the Showa Memorial Institute, National Science Museum, Tokyo, 2. Orders included within the Phyllodocida, Amphinomida, Spintherida and Eunicida. National Science Museum Monographs 23: 1–221. http://ci.nii.ac.jp/naid/110004708004/en
