Thematic сollections / Тематические коллекции
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Поиск Thematic сollections / Тематические коллекции по автору "Merella, P."
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- МатериалThe first record of Gyrodactylus corleonis Paladini, Cable, Fioravanti, Faria & Shinn, 2010 (Monogenea: Gyrodactylidae) from the wild(2015) Dmitrieva, E. V.; Gerasev, P. I.; Garippa, G.; Piras, M. C.; Merella, P.Specimens of Gyrodactylus corleonis Paladini, Cable, Fioravanti, Faria & Shinn, 2010 (Monogenea: Gyrodactylidae) were collected from the body and fins of Gobius cobitis Pallas in the western Mediterranean Sea off northwestern Sardinia. This is the first finding of this species in the wild and also represents a new host record. A morphological comparison of the new material with the type description of G. corleonis is presented. Since G. corleonis was found in the wild on representatives of the Gobiidae, a comparison with species of Gyrodactylus von Nordmann, 1832 parasitising gobies is included. The occurrence of G. corleonis on different host species and its phylogenetic relationships with gyrodactylids from sand gobies are discussed.
- МатериалRedescription of Ligophorus mediterraneus Sarabeev, Balbuena & Euzet, 2005 (Monogenea: Ancyrocephalidae) with some methodological notes(2009) Dmitrieva, E. V.; Gerasev, P. I.; Merella, P.; Pugachev, O. N.A redescription of Ligophorus mediterraneus Sarabeev, Balbuena & Euzet, 2005, based on original material from the Black and Mediterranean Seas, is presented and new diagnostic characters for its recognition are proposed. The unlikely wide range of variation in the angle between the shaft and point of the anchors, reported for this species and for some others in the genus, is analysed, and the structure of the ventral bar in Ligophorus spp. is described and its taxonomic significance discussed.
- МатериалRedescriptions of Ligophorus cephali Rubtsova, Balbuena, Sarabeev, Blasco-Costa & Euzet, 2006 and L. chabaudi Euzet & Suriano, 1977 (Monogenea: Ancyrocephalidae), with notes on the functional morphology of the copulatory organ(2009) Dmitrieva, E. V.; Gerasev, P. I.; Merella, P.; Pugachev, O. N.Redescriptions of Ligophorus cephali Rubtsova, Balbuena, Sarabeev, Blasco-Costa & Euzet, 2006 and L. chabaudi Euzet & Suriano, 1977 based on original material from the Black Sea, the Mediterranean Sea and the Sea of Japan are presented. A comparison of samples of these two species from different regions was carried out with the aid of principal components analysis. The occurrence of L. chabaudi on Mugil cephalus in the Sea of Japan was confirmed. The functional morphology of the male copulatory organ was examined, and the use of the shape of this structure in the taxonomy of Ligophorus Euzet & Suriano, 1977 is discussed.
- МатериалTwo monogenean species (Platyhelminthes) infecting Gobius cobitis Pallas, 1811 (Osteichthyes: Gobiidae) off Sardinia, western Mediterranean Sea(2010) Merella, P.; Dmitrieva, E.; Piras, M. C.; Huyse, T.; Gerasev, P.; Garippa, G.