Creseis virgula (Rang, 1828)

Salvador, Xavier, Fernández-Vilert, Robert & Moles, Juan, 2022, Sea slug night fever: 39 new records of elusive heterobranchs in the western Mediterranean (Mollusca: Gastropoda), Journal of Natural History 56 (5 - 8), pp. 265-310 : 288-290

publication ID

https://doi.org/ 10.1080/00222933.2022.2040630

DOI

https://doi.org/10.5281/zenodo.6758412

persistent identifier

https://treatment.plazi.org/id/024087AB-D85B-D12F-9A8F-2123FCE6FB72

treatment provided by

Plazi

scientific name

Creseis virgula (Rang, 1828)
status

 

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

Kingdom

Animalia

Phylum

Mollusca

Class

Gastropoda

Order

Pteropoda

Family

Creseidae

Genus

Creseis

GBIF Dataset (for parent article) Darwin Core Archive (for parent article) View in SIBiLS Plain XML RDF