Hyalocylis striata (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 : 290-291

publication ID

https://doi.org/ 10.1080/00222933.2022.2040630

DOI

https://doi.org/10.5281/zenodo.6771989

persistent identifier

https://treatment.plazi.org/id/024087AB-D855-D12C-9ABF-222CFCF2FC84

treatment provided by

Plazi

scientific name

Hyalocylis striata (Rang, 1828)
status

 

Hyalocylis striata (Rang, 1828) View in CoL View at ENA

( Figure 5 View Figure 5 (b))

Material examined

Cala Sa Tuna , Begur ( Spain), 41°57 ʹ 38”N, 3°13 ʹ 52”E, 9 February 2019, 1 m depth, 1 spc GoogleMaps ., adult, L = 6 mm; Montiel , Tamariu ( Spain), 41°54 ʹ 55.9”N, 3°12 ʹ 46.3”E, 13 March 2019, 1 m depth, 4 spcs, adults, L = 6–10 mm; 14 March 2019, 1 m depth, 3 spcs, adults, L = 6–10 mm GoogleMaps .

External morphology

Shell wide, short, striated, conical, translucent. Parapodia large, transparent. Statocysts visible between shell and parapodia.

Ecology

Found in open waters close to the surface and around other pelagic pteropod and salp species.

Distribution

Cosmopolitan. In the Mediterranean Sea, it is commonly reported in the eastern part ( Koukouras 2010; OBIS 2021) and from the Italian coast ( OBIS 2021). This species was recorded in Spanish Mediterranean waters by the study of Cervera et al. (2004) but only in remote areas tens of miles from the coast. This is the first report in the vicinity of the Mediterranean Spanish coast and the first record for Catalonia.

Remarks

As for C. virgula , almost all records in the Mediterranean Sea are based on shells of specimens caught with plankton nets in open waters and at great depths ( OBIS 2021). Our specimens were found from February to March along with the massive arrival of pelagic zooplankton.

Family PERACLIDAE Tesch, 1913

Genus Peracle Forbes, 1844

Kingdom

Animalia

Phylum

Mollusca

Class

Gastropoda

Order

Pteropoda

Family

Hyalocylidae

Genus

Hyalocylis

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