Home Guide to Opisthobranchs Nudibranchia Cladobranchia Fionoidea Trinchesia cuanensis

Trinchesia cuanensis

Trinchesia cuanensis  Korshunova, Picton, Furfaro, Mariottini, Pontes, Prkić, Fletcher, Malmberg, Lundin & Martynov, 2019

Trinchesia cuanensis @ L'Escala, Girona by Enric Madrenas

Taxonomy
 

Superdomain

Biota  

 

Kingdom

Animalia  

 

Phylum

Mollusca  

 

Class

Gastropoda  

 

Subclass

Heterobranchia  

 

Infraclass

Euthyneura  

 

Subterclass

Ringipleura  

 

Superorder

Nudipleura  

 

Order

Nudibranchia  

 

Suborder

Cladobranchia  

 

Superfamily

Fionoidea  

 

Family

Trinchesiidae  

 

Genus

Trinchesia  

 

Species

Trinchesia cuanensis  Korshunova, Picton, Furfaro, Mariottini, Pontes, Prkić, Fletcher, Malmberg, Lundin & Martynov, 2019

 
 Classification according to Bouchet et al. (2017)
Taxonomic source: World Register of Marine Species (AphiaID: 1343993).
Description
Narrow body, up to 15 mm in length, basally coloured whitish to light greenish, sometimes with a difuse pigment of the same colour scattered over the body, but never forming any continuous dorsal white band. Smooth rhinophores, about 2 times longer than the oral tentacles, both with a diffuse white pigment, sometimes yellowish, but never of an intense orange colour. Up to 10 rows of cerata, commonly with four ceratal rows anterior. The cerata are basally blackish to dark grayish (no green colour) with a narrow dotted orange or a yellowish band, then a dark blue broad band, followed by a narrow dark band, and towards the top of cerata there is broad orange or yellow band. The tips of the cerata are clear with a translucent cnidosac. Anus located between the 4th and 5th ceratal rows on the right side. The foot is narrow, anteriorly with short foot corners.

Biology
Lives in stony, relatively shallow areas, at 10–20 m depth. Feeds on hydrozoans Sertularella polyzonias, and possibly other Sertularella species.The egg mass is a spiral cord forming a minimum of 2 whorls, or an irregular cord. Number of eggs is commonly more than 300.

Etymology

  • Trinchesia. In honor of Professor Salvatore Trinchese (1836-1897), Italian opisthobranchologist, Professor of Zoology at the University of Bologna and successor of Paolo Panceri as Professor of Comparative Anatomy at the University of Naples.
  • Cuanensis. After Lough Cuan, an alternative name for Strangford Lough in Northern Ireland, where many marine biological studies have been undertaken over the past 100 years.

Distribution
Confirmed records in Ireland, United Kingdom and Swedish west coast. Also present in the Mediterranean where it has been found in the Spanish coast (Granada and the Catalan Costa Brava) also in Croatia. Due to its recent description, and the fact it was traditionally mistaken with T. caerulea, it’s distribution range should be revised (for instance Moro et al. (1995) report this species for the Canary Islands -as Cuthona caerulea- as they do mention especifically the blackish ceratal bases, typical of T.cuanensis).

Known georeferenced records of the species: Trinchesia cuanensis
Sources:
: OBIS
: GROC 2010-2011
: Enric Madrenas
: João Pedro Silva
: Bernard Picton
: GBIF.ORG		 : OPK
: VIMAR
: Manuel Ballesteros.
: M@re Nostrum
: Altres fonts
: Marine Regions

Similar species
Trinchesia caerulea, larger, tips of oral tentacles and rhinophores coloured light yellow, cerata with only a blue band (more or less evident) and a yellow band. Foot with evident propodial tentacles.

Abundance

    Western Mediterranean: ★☆☆☆☆
    Eastern Mediterranean: ☆☆☆☆☆
    Atlantic Ocean: ★★☆☆☆
Month

This chart displays the monthly observation probability for Trinchesia cuanensis based on our own records.

Vídeo

 

More pictures

Trinchesia cuanensis @ Granada, Spain
Trinchesia cuanensis @ L’Escala, Girona by Enric Madrenas
Trinchesia cuanensis @ L’Escala, Girona by Enric Madrenas
Trinchesia cuanensis @ L’Escala, Girona by Enric Madrenas
Trinchesia cuanensis @ L’Escala, Girona
Trinchesia cuanensis @ L’Escala, Girona by Enric Madrenas
Trinchesia cuanensis @ L’Escala, Girona by Enric Madrenas
Trinchesia cuanensis @ France by Pascal Girard
Trinchesia cuanensis @ Granada por Luis Sánchez Tocino

Bibliography

    Ballesteros, M., M. Pontes, and E. Madrenas. 2019. Els nudibranquis del mar català. Brau Edicions, Figueres.
    Korshunova, T., B. Picton, G. Furfaro, P. Mariottini, M. Pontes, J. Prkić, K. Fletcher, K. Malmberg, K. Lundin, and A. Martynov. 2019. Multilevel fine-scale diversity challenges the ‘cryptic species’ concept. Scientific Reports. 9: 6732.
    Rufray, X., P. Girard, S. Le Bris, T. Menut, C. Santarelli, and X. Salvador. 2021. Liste commentée des limaces de mer de la lagune de Thau, Hérault. Les cahiers de la fondation Biotope. 36: 1–189.

    Bibliography based on the works by Steve Long, 2006. Bibliography of Opisthobranchia 1554-2000 and Gary McDonald, 2009. Bibliographia Nudibranchia, with later updates from other resources.

Further reading

Cite this article as:

Pontes, Miquel (2023) "Trinchesia cuanensis" in OPK-Opistobranquis. Published: 17/09/2019. Accessed: 30/09/2023. Available at (https://opistobranquis.info/en/?p=29085)

To copy this cite click on the right button.