Pseudoleucochloridium ainohelicis nom. nov., a New Discovery about the Members of the Brachylaimidae

Authors:Stephanie Sparkes


The class Digenea (Platyhelminthes: Trematoda) is a group of obligate parasites, which have a complex life cycle involving three hosts in typical species. Several species of trematodes belonging to the closely related families Brachylaimidae Joyeux and Foley, 1930 and Panopistidae Yamaguti, 1958 are endemic to Japan. Members of these families are unique in using land snails as the first and second intermediate hosts. The Japanese species of the two families have been infrequently recorded from shrews, shrew-moles, rodents, and birds, although their larval stages still remain undiscovered from land snails. A recent DNA barcode-based trematode survey of land snails in Hokkaido, led us to the description of two new species belonging to the genus Brachylaima Dujardin, 1843. This species has already been described as Glaphyrostomum soricis Asakawa, Kamiya, and Ohbayashi, 1988 (Brachylaimidae) from the same definitive host. A nomenclatural revision is needed to correct the taxonomic position of G. soricis.

Full Text:



Briz, L.M.D., S.R. Martorelli and G.N. Genzano. 2016. The parasite Monascus filiformis (Trematoda, Digenea, Fellodistomidae) on Stromateus brasiliensis (Pisces, Perciformes, Stromateidae): Possible routes of transmission involving jellyfish. Journal of the Marine Biological Association of the United Kingdom, 96 (7): 1483-1489.

Bruni, G. and C. Angelini. 2016. No short term effect of Clinostomum complanatum (Trematoda: Digenea: Clinostomatidae) on survival of Triturus carnifex (Amphibia: Urodela: Salamandridae). Acta Herpetologica, 11 (1): 75-79.

Caldeira, R.L., L.K. Jannotti-Passos and O.D.S. Carvalho. 2017. Use of Molecular Methods for the Rapid Mass Detection of Schistosoma mansoni (Platyhelminthes: Trematoda) in Biomphalaria spp. (Gastropoda: Planorbidae). Journal of Tropical Medicine, 2017 (8628971).

Caldeira, R.L., T.M. Teodoro, L.K. Jannotti-Passos, P. Lira-Moreira, C.D.O. Goveia and O.D.S. Carvalho. 2016. Characterization of south american snails of the genus biomphalaria (Basommatophora: Planorbidae) and schistosoma mansoni (Platyhelminthes: Trematoda) in molluscs by PCR-RFLP. Biomed Research International (1045391).

Caron, Y., M. Celi-Erazo, S. Hurtrez-Bousses, M. Lounnas, J. Pointier, C. Saegerman, B. Losson and W. Benitez-Ortiz. 2017. Is Galba schirazensis (Mollusca, Gastropoda) an intermediate host of Fasciola hepatica (Trematoda, Digenea) in Ecuador? Parasite, 24 (24).

Chang, Q., G. Liu, J. Gao, X. Zheng, Y. Zhang, H. Duan, D. Yue, X. Fu, X. Su, Y. Gao and C. Wang. 2016. Sequencing and characterization of the complete mitochondrial genome from the pancreatic fluke Eurytrema pancreaticum (Trematoda: Dicrocoeliidae). Gene, 576 (11): 160-165.

Cortes, A., J. Sotillo, C. Munoz-Antoli, C. Martin-Grau, J. Guillermo Esteban and R. Toledo. 2016. Resistance against Echinostoma caproni (Trematoda) secondary infections in mice is not dependent on the ileal protein production. Journal of Proteomics, 140: 37-47.

Cribb, T.H., R.C. Chick, W. O’Connor, S. O’Connor, D. Johnson, K.B. Sewell and S.C. Cutmore. 2017. Evidence that blood flukes (Trematoda: Aporocotylidae) of chondrichthyans infect bivalves as intermediate hosts: Indications of an ancient diversification of the Schistosomatoidea. International Journal for Parasitology, 47 (13): 885-891.

Cribb, T.H., J.L. Crespo-Picazo, S.C. Cutmore, B.A. Stacy, P.A. Chapman and D. Garcia-Parraga. 2017. Elucidation of the first definitively identified life cycle for a marine turtle blood fluke (Trematoda: Spirorchiidae) enables informed control. International Journal for Parasitology, 47 (1): 61-67.

Galaktionov, N.K., O.I. Podgornaya, P.P. Strelkov and K.V. Galaktionov. 2016. Genomic diversity of cercarial clones of Himasthla elongata (Trematoda, Echinostomatidae) determined with AFLP technique. Parasitology Research, 115 (12): 4587-4593.

Guliaev, A.S., G.G. Chrisanfova and S.K. Semyenova. 2017. Penelope-like retrotransposons in the genome of the Asian blood fluke Schistosoma japonicum (Trematoda: Schistosomatidae). Molecular Genetics Microbiology and Virology, 32 (1): 21-28.

Hayashi, K., M. Ichikawa-Seki, Y. Ohari, U.K. Mohanta, J. Aita, H. Satoh, S. Ehara, M. Tokashiki, T. Shiroma, A. Azuta, N. Oka, T. Watanabe, R. Harasawa, S. Inohana, T. Ichijo and K. Furuhama. 2017. First detection of Allobilharzia visceralis (Schistosomatidae, Trematoda) from Cygnus cygnus in Japan. Parasitology International, 66 (1): 925-929.


  • There are currently no refbacks.