Creseis virgula (Rang, 1828)
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publication ID |
https://doi.org/ 10.1080/00222933.2022.2040630 |
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DOI |
https://doi.org/10.5281/zenodo.6758412 |
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persistent identifier |
https://treatment.plazi.org/id/024087AB-D85B-D12F-9A8F-2123FCE6FB72 |
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treatment provided by |
Plazi |
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scientific name |
Creseis virgula (Rang, 1828) |
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Creseis virgula (Rang, 1828) View in CoL View at ENA
( Figure 5 View Figure 5 (a))
Material examined
Ullastres 3, Llafranc ( Spain), 41°53 ʹ 14.1”N, 3°12 ʹ 26.0”E, 27 February 2019, 0.5 m depth, 3 spcs, adults, L = 10 mm; GoogleMaps Cala Sa Tuna, Begur ( Spain), 41°57 ʹ 38”N, 3°13 ʹ 52”E, 9 March 2019, 0.8 m depth, 1 spc., adult, L = 10 mm; GoogleMaps Montiel , Tamariu ( Spain), 41°54 ʹ 55.9”N, 3°12 ʹ 46.3”E, 13 March 2019, 1 m depth, 20 spcs, adults, L = 5–10 mm GoogleMaps .
External morphology
Shell narrow, elongated, conical, back end slightly curved, smooth. Parapodia transparent, large, with double-axe shape.
Ecology
Found in open waters close to the surface and around other pelagic pteropod and salp species.
Distribution
Cosmopolitan. In the Mediterranean Sea this species has been reported from the eastern and western Mediterranean, and in the Malta stretch and between Mallorca and Sicily ( OBIS 2021). This is the first report of this species from the Mediterranean Spanish coast.
Remarks
Almost all records in the Mediterranean are based on shell observations or from specimens caught in plankton tows in open waters, at superficial (0–10 m) or greater depths (600–700 m; OBIS 2021). Our specimens were found from February to March along with the massive arrival of pelagic zooplankton in superficial waters. This species is very similar to C. conica Eschscholtz, 1829 , so several specimens with slightly different morphologies have been collected to determine whether both species could be present. In the case of both species, this record represents the first observation of either taxon for the Catalan coast.
Genus Hyalocylis Fol, 1875
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