Sea slug night fever: 39 new records of elusive heterobranchs in the western Mediterranean (Mollusca: Gastropoda)
Salvador, Xavier
Fernández-Vilert, Robert
Moles, Juan
Journal of Natural History
2022
2022-05-18
56
5 - 8
265
310
799DB
2780906
(Quatrefages, 1844)
Quatrefages
1844
[434,881,1303,1329]
Gastropoda
Runcinidae
Runcina
Animalia
Runcinida
27
292
Mollusca
species
ornata
( Figure 5(e))
Material examined Cala d’Aiguafreda, Begur( Spain), 41°57 ʹ49”N, 3°13 ʹ41”E, 13 October 2017, 0.1 mdepth, 7 spcs, adults, L = 2–3 mm; 21 November 2017, 0.1 mdepth, 1 spc., adult, L = 2 mm; 31 January 2018, 0.1 mdepth, 9 spcs, adults, L = 2–3 mm; 23 April 2018, 0.1 mdepth, 2 spcs, adults, L = 3 mm; 25 May 2018, 0.1 mdepth, 2 spcs, adults, L = 3 mm; Punta del Romaní, L’Escala( Spain), 42°6 ʹ54”N. 3°10 ʹ9”E, 10 January 2018, 0.2 mdepth, 4 spcs, adults, L = 2–3 mm; 24 April 2018, 0.2 mdepth, 3 spcs, adults, L = 2–3 mm; 7 December 2018, 0.2 mdepth, 7 spcs, adults, L = 2–3 mm; Punta d’en Bosch, Sant Feliu de Guíxols( Spain), 41°45 ʹ54”N, 3°0 ʹ11”E, 17 April 2018, 0.1 mdepth, 5 spcs, adults, L = 1–3 mm. External morphology Body elongate, narrow, black or brown in colour, rear tail darker. Foot large.
Ecology Specimens found grazing on biofouling at night over calcarean red algae or boulders, in very superficial waters.
Distribution Atlantic Spanish coast: Canary Islands and Strait of Gibraltar( Cervera et al. 2004) and Mediterranean Spanish coast: Catalonia (this study).
Remarks This species is rarely observed and very small. Easily distinguishable from other Runcinaspeciesby its absence of spots and white marks and its uniform black colour ( Quatrefages 1844). Superorder SACOGLOSSA Ihering, 1876 Family HERMAEIDAE H. Adams and A. Adams, 1854 Genus AplysiopsisDeshayes, 1853
3819588382
2017-10-13
2017-11-21
2017-10-13
Spain
1
41.96361
Cala d'Aiguafreda
19
3.2280555
Begur
27
292
1
3819588315
2017-10-13
2017-11-21
2017-10-13
Spain
1
41.96361
Cala d'Aiguafreda
19
3.2280555
Begur
27
292
1
3819588331
2017-10-13
2017-11-21
2017-10-13
Spain
1
41.96361
Cala d'Aiguafreda
19
3.2280555
Begur
27
292
1