A reevaluation of the specimens of Mesocoelium (Trematoda: Mesocoeliidae) in the Coleccion Nacional de Helmintos, Mexico
Por:
Samara Lopez-Garcia, Ashley, Garcia-Prieto, Luis
Publicada:
2 jun 2017
Resumen:
Species of Mesocoelium Odhner, 1901 (Digenea) are generally similar and
are often difficult to distinguish. Currently there are 42 specimens of
this genus held in the Coleccion Nacional de Helmintos (CNHE) of the
Instituto de Biologia, Universidad Nacional Autonoma de Mexico, which
previously have been assigned to three species: M. monas Rudolphi, 1819,
M. travassosi Pereira & Cuocolo, 1940 and M. leiperi Bhalerao, 1936.
Upon reevaluation of these specimens it was determined that 27, could
not be assigned to species level and 15 could only be assigned to body
type (carli and leiperi) because of the poor conditions of preservation
of the material. The remaining 15 specimens were of sufficient quality
to be identified to species and were found to represent M. americanum
Harwood, 1932, M. danforthi Hoffman, 1935, M. meggitti Bhalerao, 1927,
M. cf. americanum Harwood, 1932, and M. cf. danforthi Hoffman, 1935.
Neither M. monas nor M. travassosi could be confirmed among these
specimens; however, Mesocoelium meggitti (syn. M. travassosi) was
confirmed. Mesocoelium danforthi is recorded for the first time in the
Mexican collection. The presence of M. cf. gonocephali Singh, 1967 and
M. cf. microon Nicoll, 1914 also among the 15 specimens of sufficient
quality to be identified to species, needs to be confirmed through
collects of new material. Finally, in future studies, we propose to
improve the quality of specimens by fixing them considering the
modifications to this process proposed herein, and compliment these
morphological studies with molecular studies.
Filiaciones:
Samara Lopez-Garcia, Ashley:
Univ Nacl Autonoma Mexico, Inst Biol, Colecc Nacl Helmintos, Apartado Postal 70-153, Mexico City 04510, DF, Mexico
Garcia-Prieto, Luis:
Univ Nacl Autonoma Mexico, Inst Biol, Colecc Nacl Helmintos, Apartado Postal 70-153, Mexico City 04510, DF, Mexico
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