Vol. 62, 2023
(update: 2023.5.26)
A New Polyclad Flatworm, Idiostylochus tortuosus
gen. nov., sp. nov. (Platyhelminthes, Polycladida) from France. Can
this Foreign Flatworm be Responsible for the Deterioration of Oyster
and Mussel Farms?
Adrian
Gutiérrez1, Isabelle Auby2 , Benoit Gouillieux3 ,
Guillemine Daffe3 ,
Cecile Massé4 ,
Elvire Antajan2 ,
and Carolina Noreña1,*
doi:10.6620/ZS.2023.62-15
1Departamento
de Biodiversidad y Biologia Evolutiva, Museo Nacional de Ciencias
Naturales (CSIC), C/ Jose Gutierrez Abascal 2, 28006 Madrid, Spain.
*Correspondence: E-mail: norena@mncn.csic.es (Noreña).
E-mail: adrgut01@ucm.es (Gutiérrez)
2Ifremer, LITTORAL, Quai Du Commandant Silhouette,
33120, Arcachon, France. E-mail: Isabelle.Auby@ifremer.fr (Auby);
Elvire.Antajan@ifremer.fr (Antajan)
3Univ. Bordeaux, CNRS, Observatoire Aquitain des
Sciences de l’Univers, UAR 2567 POREA, F-33615, Pessac, France. E-mail:
benoit.gouillieux@u-bordeaux.fr (Gouillieux);
guillemine.daffe@u-bordeaux.fr (Daffe)
4Service Patrimoine Naturel (PATRINAT) OFB, CNRS,
MNHN, CP41, 36 rue Geoffroy Saint-Hilaire 75005 Paris, France. E-mail:
cecile.masse@mnhn.fr (Masse)
(Received 19 March 2022 / Accepted 18
January 2023 / Published 26 May 2023)
Communicated by Benny K.K. Chan
A new species of polyclad flatworm,
Idiostylochus tortuosus
gen. nov., sp. nov. (Polycladida, Idioplanidae), from Arcachon Bay
(France) is described. This description is based on a morphological
analysis and a molecular analysis using partial sequences of the 28S
and cytochrome Oxidase I (COI)
genes. After the molecular analysis Idiostylochus
gen. nov. appears to be the second genus of the Family Idioplanidae and
closely related to the family Latocestidae as well as the genera Leptostylochus and Mirostylochus. The molecular data
revealed that the new species may belong to an Indonesian or
Indo-Pacific family, closely related to genera with origins in South
Pacific Ocean waters. This species was found feeding on the oysters and
mussels of the Arcachon farms.
Key words: Acotylea, Idioplanidae, non-native
species, Magallana gigas,
oyster culture.
Citation: Gutiérrez A, Auby I, Gouillieux
B, Daffe G, Massé C, Antajan E, Noreña C. 2023. A new polyclad
flatworm, Idiostylochus tortuosus
gen. nov., sp. nov. (Platyhelminthes, Polycladida) from France. Can
this foreign flatworm be responsible for the deterioration of oyster
and mussel farms? Zool Stud 62:15. doi:10.6620/ZS.2023.62-15.

|