Prosphaerosyllis chauseyensis
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BibTeX: @article{Faulwetter2011ZooKeys150, RIS/ Endnote: TY - JOUR Wikipedia/ Citizendium: <ref name="Faulwetter2011ZooKeys150">{{Citation See also the citation download page at the journal. |
Ordo: Phyllodocida
Familia: Syllidae
Genus: Prosphaerosyllis
Name
Prosphaerosyllis chauseyensis Olivier, Grant, San Martín, Archambault & McKindsey, 2011 – Wikispecies link – Pensoft Profile
- Prosphaerosyllis chauseyensis Olivier et al., 2011, figs 1–3a, b.
Material examined
Haifa Bay, Israel: ALA-IL-8 (12 ind.) [coll. 31.5.2009]; ALA-IL-1 (23 ind.), ALA-IL-2 (4 ind.), ALA-IL-5 (1 ind.), ALA-IL-7 (73 ind.), ALA-IL-8 (24 ind.), ALA-IL-9 (68 ind.), ALA-IL-10 (99 ind.) [coll. 11.10.2009].
Comparative material examined
Sphaerosyllis brevicirra Hartmann-Schröder, 1960 (Zoological Museum Hamburg, Holotype P-17566, Ghardaqa, Red Sea: 1 individual [Label: Sphaerosyllis brevicirra n. sp., Ghardaqa (Rot. Meer) (Typ), 29.3.56, coll. Remane/Schulz]); Prosphaerosyllis chauseyensis (Muséum National d’Histoire Naturelle, Paris, Holotype MNHN POLY TYPE 1524, Chausey Islands, France: 1 individual [Label: HOLOTYPE MNHN Paris 1524, Chausey, Prosphaerosyllis sp. A, (5 ind. for SEM +Holotype), C1AM et C3AV]).
Type locality
Chausey Islands, Normandy (north-east Atlantic).
Distribution
North-east Atlantic (Normandy), Mediterranean Sea: LB. New record for the Mediterranean Sea.
Habitat
Until 13 m depth, in medium to very coarse sand.
Reproduction
Three specimens collected at Station ALA-IL-8 on 31 May 2009 with egg capsules attached near dorsal cirri on midbody chaetigers.
Remarks
The specimens from Israel agree well with the specimens from Normandy, however, the Mediterranean specimens differ from the Holotype in: a) Papillation pattern: each segment with one papilla between dorsal cirri and four papillae, situated dorso-laterally and ventro-laterally on each side of parapodium, most developed in posterior chaetigers, from mid-body additional papillae arranged in two very irregular lines along middle of dorsum, increasing in length towards posterior end (ca. 20 µm posteriorly). Ventrally 2 smaller (about half the size of dorsal papillae) papillae in middle of ventrum at posterior end of each segment. Specimens from Normandy have an irregular papillation pattern, but papillation is more distinct laterally, as in specimens from Israel; b) Length of anal cirri: about 125 µm, ca. 2.5–3 times length of posterior dorsal cirri (Fig. 4) (the anal cirri are broken in the holotype and the large lateral anal papillae might have been erroneously regarded as anal cirri in the original description). Specimens from both locations have anterior dorsal cirri with two papillae (dorsal and ventral) and posterior dorsal cirri only with dorsal papilla (Fig. 5, not reported by Olivier et al. 2011[1]).
Individuals identified by Ben-Eliahu (1977a)[2] as Sphaerosyllis tetralix Eliason, 1920, from the Gulf of Elat and the Mediterranean Sea might in fact belong to Prosphaerosyllis chauseyensis. The description and illustrations agree with many characteristics of Prosphaerosyllis chauseyensis, including the characteristic papilla on the dorsal cirri. However, Ben-Eliahu reports the species to have palps widely separated anteriorly (fused in Prosphaerosyllis chauseyensis), dorsum with four longitudinal rows of papillae (irregular rows in Prosphaerosyllis chauseyensis) and the proventriculum stretching through 4 chaetigers (5 in Prosphaerosyllis chauseyensis). The material of the species described by Ben-Eliahu could not be examined during this study, therefore it can only tentatively be assigned to Prosphaerosyllis chauseyensis.
Taxon Treatment
- Faulwetter, S; Chatzigeorgiou, G; Galil, B; Arvanitidis, C; 2011: An account of the taxonomy and distribution of Syllidae (Annelida, Polychaetes) in the eastern Mediterranean, with notes on the genus Prosphaerosyllis San Martín, 1984 in the Mediterranean ZooKeys, 150: 281-326. doi
Other References
- ↑ Olivier F, Grant C, San Martín G, Archambault P, McKindsey C (2011) Syllidae (Annelida: Polychaeta: Phyllodocida) from the Chausey Archipelago (English Channel, France), with a description of two new species of the Exogoninae Prosphaerosyllis. Marine Biodiversity: Online First. doi: 10.1007/s12526-011-0092-1
- ↑ Ben-Eliahu M (1977a) Polychaete cryptofauna from rims of similar intertidal vermetid reefs on the Mediterranean coast of Israel and in the Gulf of Elat: Exogoninae and Autolytinae (Polychaeta Errantia: Syllidae). Israel Journal of Zoology 26: 59-99.
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