Studies on Myxosporidia; a synopsis of genera and species of Myxosporidia; with 25 plates and 2 textfigures, by Rokusaburo Kudo ...

Abstract

The total number of species of Myxosporidia reported up to date and described in the following pages, excluding 12 ambiguous forms, reaches 237 of which 125 are species which have been observed since 1910.* The distribution of these new forms is as follows: Africa 6 species Asia 23 species Australia 1 species Europe 31 species North America 63 species South America 1 species Thus, the majority of the species were observed in other lands than Europe, nearly half being recorded from North American waters. It is not hard to anticipate from the observations made by Awerinzew, Davis, Kudo, Mavor, Johnston and Bancroft, and others, that further investigations on the parasites in the localities where the study of the protozoa under consideration was neglected, will bring out not only new and interesting forms which will be quite different from the comparatively well studied European species, but also many important facts that will clear unknown or doubtful phases concerning the life history and structure of Myxosporidia. * Three species are included here which have been described (in Nipponese) by Miyairi in 1909. 247] STUDIES ON MYXOSPORIDIA-KUDO MYXOSPORIDIA RECORDED IN THE PRESENT PAPER LIST I Order MYXOSPORIDIA Biitschli I Suborder EURYSPOREA nom. nov. (see page 56) Genus 3 MYXOPROTEUS Doflein [3 species] 1) M. ambiguus (Thelohan) Doflein (type species) 2) M. cordiformis Davis 3) M. cornutus Davis Genus 4 WARDIA nov. gen. [2 species] 1) W. omnocua nov. spec, (type species) 2) W. ohlmacheri (Gurley) Kudo Genus 5 MITRASPORA Fujita emend. Kudo [3 species] 1) M. cyprini Fujita (type species) 2) M. caudata (Parisi) Kudo 3) M. elongata nov. spec. 1) M. lieberkUhni Butschli (type species) 2) M. incurvatum Thelohan 3) M. sphaericum Thelohan 4) M. histophilum Thelohan 5) M. sp. Gurley 6) M. danilewskyi Laveran 7) M. giganteum Doflein 8) M. barbatidae Cepede 9) M. giardi Cepede 10) M. pjeiferi Auerbach 11) M. inflatum Auerbach 12) M. bergense Auerbach 13) M. proccrum Auerbach 14) M. mackiei Bosanquet 15) M. macrocapsulare Auerbach 16) M. sp. Awerinzew 17) M. depressum Parisi 18) M. oviforme Parisi 19) M. anguillae Ishii 20) M. sp. Mavor 21) M. gadi Georgevitch 22) M. glulinosum Davis 23) M. phyttium Davis 24) M. striatum Cunha et Fonseca 25) M. kagayamai nov. spec. 26) M. americanum nov. spec. Genus 2 SPHAEROMYXA Thelohan [7 species] 1) 5. balbianii Thelohan (type species) 2) S. immersa (Lutz) Thelohan 3) 5. incunata Doflein 4) 5. sabrazcsi Laveran et Mesnil 5) S. hellandi Auerbach 6) S. exneri Awerinzew 7) 5. gasterostei GeorgeVitch Genus 3 ZSCHOKKELLA Auerbach [4 species] 1) Z. hildae Auerbach (type species) 2) Z. nova Klokacewa 3) Z. acheilognalhi Kudo 4) Z. globulosa Davis 249]

Myxosporean parasites of the genus Myxobolus from Mugil cephalus in Ichkeul lagoon, Tunisia:description of two new species

“…According to our knowledge 11 species (Table 1) belonging to the Myxobolus genus have been described infecting Mugil cephalus (Kudo 1920, Shulman 1966, Iversen et al 1971, Landsberg & Lom 1991, Lom & Dykova 1992, 1994. Most of them can be clearly distinguished from each other.…”

Molecular characterization of Sphaerospora molnari (Myxozoa), the agent of gill sphaerosporosis in common carp Cyprinus carpio carpio

“…Transelectromicroscopic studies by Kaup et al (1995) confirmed the histological observations that the monosporic sporoblasts of S. molnari surrounded by an envelope cell lay isolated in the gill epithelium. Before 1983, S. molnari was identified as S. carassii; thereafter, it was distinguished from S. carassii Kudo, 1919 andS. chinensis Lom, Dyková, Pavlásková andGrupcheva, 1983 based on spore morphology, host species and geographic locality (Lom et al 1983).…”

Myxobolus franciscoi sp. nov. (Myxozoa: Myxosporea: Myxobolidae), a parasite of Prochilodus argenteus (Actinopterygii: Prochilodontidae) from the Upper São Francisco River, Brazil, with a revision of Myxobolus spp. from South America

“…Only the length (11 µm) and width (7 µm) of the spores were initially described for this species, which has polar capsules of unequal size (GURLEY 1893). Later, spores of 5.2 µm in length by 3.3 µm in width were reported for this species, along with the hosts, Piramutana blochi (= Corydoras blochi Nijssen, 1971) and Synodontis schall (Bloch & Schneider, 1801) from the same locality (KUDO 1920). According to PINTO (1928) P. blochi referred as Pimelodus clarias (Bloch, 1782), while S. schall occurs only in the River Nile in Africa according to M. colossomatis*** 11.8 (11.4-11.2) 6.9 (6.6-7.2) 3.7 (3.5-4.0) 6.0 (5.8-6.6) 2.1 (1.…”